Boys In Age Group Research Articles

ВЛИЯНИЕ ВОЗРАСТА И ПОЛА НА СИНОНАЗАЛЬНЫЕ СИМПТОМЫ У ДЕТЕЙ И ПОДРОСТКОВ С БРОНХИАЛЬНОЙ АСТМОЙ

There is a lack of information about the relationship between the age and gender and the nasal and sinonasal symptoms in patients with combined bronchial asthma (BA) and allergic rhinosinusitis (ARS) in childhood and adolescence in current bibliographical data. The purpose of this research was to study the influence of age and gender factors on nasal and sinonasal symptoms in children and adolescents with combined asthma, allergic rhinitis (AR) and/or ARS. Materials and methods used: a single-center observational cross-sectional pilot study of patients with atopic asthma aged 5 to 17 y/o was performed, median age 12.0 [9.0; 15.0] years, 73.1% (201/275) boys, in the Nizhny Novgorod City Children’s Clinical Hospital No. 1 (Nizhny Novgorod, Russia) in 2017-2023. All children underwent spirometric studies and assessment of nasal and sinonasal symptoms using the TNSS (Total Symptom Nasal Score) and SNOT-22 (SynoNasal Outcome Test-22) questionnaires. The patients were divided into 3 age groups: G1 of 90 aged 5 to 9 y/o, G2 of 111 aged 10 to 14 y/o, and G3 of 74 aged 15 to 17 y/o. Results: the severity of nasal symptoms (TNSS) in patients with asthma increased statistically significantly as their age increased, both in common sample and in the samples of boys and girls (p=0.005, p=0.020, p=0.037, respectively). Sinonasal symptoms (assessed with SNOT-22) increased statistically significantly as patients grew older in the sample of girls (p=0.002) and did not have statistically significant differences at different age groups in boys (p=0.414). Conclusion: understanding the role that gender factors play in the formation and course of AR and ARS in patients with asthma in childhood and adolescence can contribute to the development of new directions for personalized management of these patients taking into account their gender and age.

Body composition, the caloric requirement in various age groups of boys with duchenne muscular dystrophy

Body composition, the caloric requirement in various age groups of boys with duchenne muscular dystrophy

Cephalometric Mandibular Dimensions in Growing Turkish Children: Trends of Change, Sex-Specific Differences, and Comparisons with Published Norms.

The aims of this study were to investigate cephalometric mandibular dimensions in growing Anatolian Turkish children and to identify the periods of rapid growth for boys and girls. Furthermore, the secondary aim was to compare obtained values with published standards in the literature. A total of 528 pretreatment lateral cephalometric radiographs, grouped according to age and sex, were analyzed. Effective mandibular length, ramus height, and corpus lengths were comparatively evaluated within age groups for boys and girls and between sexes for the same age group. Data acquired from this study were compared with American, Canadian, Chinese, and European norms. Growth curves for mandible were constructed for each sex group. Effective mandibular length was almost always significantly longer in boys, except for 9- and 12-year-age groups. Effective mandibular length in girls increased significantly between ages 8 and 10, 10 and 12, and 11 and 13 years, while in boys between ages 8 and 10, 9 and 11, and 13 and 15 years. Turkish girls had significantly shorter effective mandibular lengths than American girls at age 14. No significant difference was found between Turkish and Chinese girls and boys. Turkish girls and boys had significantly shorter corpus lengths from their Norwegian counterparts at age 12. Except for 9- and 12-year-age groups, effective mandibular length was almost always significantly longer in boys compared to the girls. It is suggested to use norm values from more recently conducted studies and which are representative of the studied population. Growth curves can be used to predict the approximate mandibular dimensions at a particular age.

Triponderal mass index is as strong as body mass index in the determination of obesity and adiposity

ObjectiveIn determining obesity and body adiposity, triponderal mass index (TMI) is as strong an anthropometric measurement as body mass index (BMI). The aim of this study was to develop TMI reference values for Turkish children and adolescents and compare TMI with BMI according to body adiposity and obesity indices. MethodsData from the DAMTCA-II (Determination of Anthropometric Measurements of Turkish Children and Adolescents II) study were used in this cross-sectional study. Data from 4330 children (1931 boys, 2399 girls) ages 6 to 17 y were evaluated, and the TMI percentile values were produced. The predictive power of TMI and BMI for obesity and overweight were done for waist circumference, waist/height ratio, body fat percentage, and upper arm fat area, which are different parameters used to determine body adiposity. ResultsThe 3rd, 5th, 10th, 25th, 50th, 75th, 85th, 90th, 95th, and 97th TMI percentiles and mean values were calculated for all children's age and sex. TMI cutoff values were calculated by receiver operating characteristic analysis regarding waist/height ratio 0.5, waist circumference ≥90 percentile, arm fat area ≥85 percentile, and body fat percentage ≥85. TMI and BMI area under the curve values were similar for each of these four measurements. TMI was as robust an index as BMI in demonstrating obesity and adiposity for all age groups in boys and girls. It was concluded that the values >90th percentile (median 15.8 kg/m3) in girls aged ≤10 y, 95th percentile (median 16.2 kg/m3) in girls aged >10 y, >85th percentile (median 14.9 kg/m3) in boys aged ≤12 y and 75th percentile (median value 14.5 kg/m3) in boys aged >12 y are critical values for TMI when evaluating adiposity and obesity. ConclusionsWe considered that TMI is as effective as BMI in terms of waist/height ratio, waist circumference, arm fat area, and body fat percentage in determining overweight and obesity in children. The ages at which TMI showed distinct variation were determined for both sexes.

Probabilistic prediction of segmental body composition in Iranian children and adolescents

BackgroundAdolescents' body composition is considered an important measure to evaluate health status. An examination of any of the segmental compartments by anthropometric indices is a more usable method than direct methods.ObjectivesTo propose a method based on the network approach for predicting segmental body composition components in adolescent boys and girls using anthropometric measurements.MethodsA dual-energy X-ray absorptiometry (DXA) dataset in the south of Iran, including 476 adolescents (235 girls and 241 boys) with a range of 9–18 years, was obtained. Several anthropometric prediction models based on the network approach were fitted to the training dataset (TRD 80%) using bnlearn, an R add-in package. The best fitted models were applied to the validation dataset (VAD 20%) to assess the prediction accuracy.ResultsPresent equations consisting of age, weight, height, body mass index (BMI), and hip circumference accounted for 0.85 (P < 0.001) of the variability of DXA values in the corresponding age groups of boys. Similarly, reasonable estimates of DXA values could be obtained from age, weight, height, and BMI in girls over 13 years, and from age, weight, height, BMI, and waist circumference in girls under 13 years, respectively, of 0.77 and 0.83 (P < 0.001). Correlations between robust Gaussian Bayesian network (RGBN) predictions and DXA measurements were highly significant, averaging 0.87 for boys and 0.82 for girls (P < 0.001).ConclusionsThe results revealed that, based on the present study’s predictive models, adolescents' body composition might be estimated by input anthropometric information. Given the flexibility and modeling of the present method to test different motivated hypotheses, its application to body compositional data is highly appealing.

THE IMPACT OF AGE, SEX, AND SOCIO-ECONOMIC STATUS ON SERUM VITAMIN B12, FOLATE CONCENTRATION AND IRON STATUS IN TURKISH CHILDREN: A CROSS-SECTIONAL STUDY

Objective: The aim of this study is to evaluate the effects of age, sex, and socio-economic status (SES) on concentrations of vitamin B12 (vit-B12), folate, iron, and ferritin through the pediatric age span, and to show the relationship of these nutrients with blood count parameters such as hemoglobin (Hb), hematocrit (Hct), mean corpuscular volume (MCV), and red cell distribution (RDW). Material and Method: The study comprised of 30,504 venous blood samples (54.5% of girls and 45.5% of boys). The study group was stratified; group I: 1-6 years (n=3,870), group II: 7-12 years (n=11,019), and group III: 13-18 years (n=15,615). Serum vit-B12, folate, ferritin, iron and total iron-binding capacity (TIBC) were measured using a Beckman Coulter DXI 800, and the blood count was analyzed using a Sysmex XE 2100 analyzer. Results: The Hb, Hct, MCV, and RDW levels were significantly different between the age groups of boys and girls (p&lt;0.001, for all). Hb and Hct were the highest in boys aged 13-18 years, and higher than those of girls in the same age group (p&lt;0.001). The MCV and RDW were also significantly different across the age groups (p&lt;0.001). The iron deficiency prevalences were 12.3% and 4.2% for the girls and boys respectively. Serum folate and vit-B12 showed decrement with age across the age groups. The prevalences of vit-B12 deficiency were 27.1% and 28.3% and 6.0% and 6.8% for folate deficiency for girls and boys. Iron, TIBC,&nbsp;and ferritin levels were significantly different between the high and medium SES. Conclusion: The results of this study are important in that the monitorization of ferritin, vit-B12, and folate levels greatly contribute to clinical practice because of the roles of vit-B12, folate, and iron in mental, emotional, and metabolic development. However, there is a need for larger and multicenter studies that can represent the nutrients of Turkish children and adolescents nationwide.

The Relative Age Effect in the Best Track and Field Athletes Aged 10 to 15 Years Old.

(1) The purpose of this study was to examine the prevalence of the relative age effect (RAE) in the best young (10 to 15 years old) track and field athletes. (2) Hypothesis: The prevalence of the RAE in the best young track and field athletes of both genders will be evident in all age groups from 10 to 15 years old, which may be associated with the significant relationship between biological maturity, chronological age, and the development of physical qualities. (3) Materials and methods: In total, 1778 athletes volunteered for this study. The sample was based on the results of the best young athletes who participated in the final tournaments of the national competition “Shipovka Yunykh”(“Running spikes for young athletes”), which have been held since 1981. The sample group consisted of male and female athletes classified into specific age groups: 10 to 11 years old (n = 579), 12 to 13 years old (n = 600), and 14 to 15 years old (n = 599). Analysis was performed using Jamovi 1.8.1. The Chi-square test was used to compare the RAE between different groups. (4) Results: A wide distribution of the RAE was revealed both in the general sample and in boys and girls. The percentage of “early-born” athletes was 37.6% while only 12.3% were “late-born” athletes. The difference in the severity of the RAE may reflect the small sample of athletes from the fourth quartile, which was significantly less than the sample of boys from the fourth quartile (p = 0.04, OR 1.68, 95% CI 1.02–2.78). The RAE was also evident in all age groups of boys and girls, without any statistically significant differences in the severity (p > 0.05, Chi = 2.135, V = 0.02). In the 14- to 15-year-old male athletes group, the number of early-born compared to late-born athletes peaked. The RAE was most common amongst the most successful track and field athletes. Among the competition medalists during the analyzed time period, more than 50% of athletes were born in the first quarter and no athletes were born in the fourth quarter.

Prevalence of cardiovascular metabolic risk factors among 12-18 years old adolescents in Yinchuan City from 2017 to 2019

To understand the prevalence of cardiovascular metabolic risk factors among 12-18 years old children and adolescents in Yinchuan City. A survey was conducted among 12-18 years old middle school students in Yinchuan from September 2017 to September 2019. A total of 1956 subjects were collected by using convenient sampling method, with an average age of(14. 4±1. 4) years. Boys and girls accounted for 52. 1% and 47. 9%, respectively, The Han and Hui nationalities accounted for 77. 7% and 16. 4%, respectively. Basic data such as age and gender were collected through questionnaire survey, and physical examination was used to measure height, weight, waist circumference and blood pressure. Fasting blood glucose, triglyceride(TG), total cholesterol(TC), high density lipoprotein cholesterol(HDL-C) and low density lipoprotein cholesterol(LDL-C) were measured by laboratory blood pressure biochemistry. The detection rates of obesity, abdominal obesity, hypertension, hyperglycemia, high TG, high LDL-C, low HDL-C, high LDL-C and dyslipidemia among 12-and 18-year-olds in Yinchuan City were 8. 3%, 17. 9%, 12. 4%, 1. 9%, 13. 2%, 2. 4%, 18. 6%, 1. 9% and 30. 1%, respectively. The detection rates of obesity, hyperglycemia, low HDL-C, high TG and dyslipidemia in boys were significantly higher than those in girls. Obesity, abdominal obesity and hypertension in 12-15-year-old group were higher than those in 16-18-year-old group, and the detection rates of high TC, low HDL-C, high LDL-C and dyslipidemia were lower than those in 16-18-year-old group(P& lt; 0. 05). The prevalence of cardiovascular risk factors in different age groups of boys and girls were compared. The detection rates of obesity, abdominal obesity and hypertension in the 12-15 age group were higher than those in the 16-18 age group, while the rates of high TG, low HDL-C, high LDL-C and dyslipidemia were higher in the 12-15 age group, but these differences were only significant in boys. Among girls, the detection rate of high TC and high LDL-C was higher in the age group of 12 to 15 years old(P& lt; 0. 05). The detection rate of metabolic syndrome in 12-18-year-old adolescents was 7. 9%. The detection rate of metabolic syndrome in boys(10. 1%) was higher than that in girls(5. 5%). The detection rates of metabolic syndrome in 12-15 years old and 16-18 years old were 9. 1% and 4. 9% respectively, and the differences were statistically significant(P& lt; 0. 05). The prevalence of cardiovascular metabolic risk factors in 12-18 years old adolescents in Yinchuan City is at a high level, boys are higher than girls, and the prevalence of obesity, abdominal obesity and hypertension are higher in 12-15 years old group. Dyslipidemia varies greatly in different gender and age groups.

Epidemiology of Femur Fractures in Children: A Descriptive Cross Sectional Study Based on a Rural Population of Nepal.

Femur fracture in children is one of the most common lower limb fractures which require inpatient care. The aim of this study is to determine the epidemiology of femoral shaft fractures in children from a rural population of Karnali Nepal. Hospital records were retrospectively reviewed from May 2017 to April 2020 to identify all the children with femur fracture. Sociodemographic profile, mode of injury, fracture pattern and location, time of presentation, initial treatment by traditional bone setters, treatment method and duration of hospital stay were noted. Data analysis was done using Statistical Package for Social Sciences version 20. Altogether 104 children were identified. The mean age was 5.55 years and boys predominated 65 (62.5%). Falls were the major mode of injury in 65 (62.4%) patients. Fractures were frequently noted between April 15 to August 15. There were four (3.8%) open fractures and concurrent fracture observed in eight (7.6%) patients. Ten (9.6%) children received prior treatment from traditional bonesetters. Treatment methods included hip spica 62 (59.6%), elastic intramedullary nailing 30 (28.8%) and plate fixation 12 (11.5%). The duration of hospital stay in the nailing and plate fixation group was 11.43 days and 18 days respectively. Fracture was common in 2-6 years of age group in boys during summer. Fall from cliff, rooftop and ladder were the major preventable cause of fracture. Delayed presentation and prior treatment with traditional bone setters add special challenges to orthopedic surgeons working in rural teaching hospital.

An Analysis of Young Children’s Preferences on STEM Activities in terms of Gender

Presenting differences in the participation rates of genders in STEM activities may be a practical way to reveal that a solution to the gender gap should include addressing children at an early age, rather than at later periods in life. Thus, the purpose of the study was to investigate the STEM-related activity preferences of 3 to 8-year-old children. The sample of the study consisted of 193 children, between 3- and 8-years old attended STEM activities presented at the eight-hours-long science fair annually organized. Data was collected through a checklist. The results of the study revealed that the number of boys that attended the activities was greater than that of girls. More boys participated in the age group 5 than girls. On the other hand, girls’ participation was higher than boys in age group 6. The results of the study also revealed that the activity preference of girls and boys did not differ for five out of six activities, i.e., Catapult Design, Jumping Wooden Sticks, Design Own Ship, Rescue the Horse, and Constructing with Mirror. However, it was found that among the six activities, boys participated in the magnetic wall activity significantly more than girls. This study may indicate the basis from which the gender gap emerged in STEM-related fields.

Updated and revised normal values of aortic pulse wave velocity in children and adolescents aged 3-18 years.

Measurement of aortic pulse wave velocity (PWVao) is recommended for stratifying individual cardiovascular (CV) risk in adults. Diseases in children and adolescents might influence aortic stiffness. It is necessary to exclude overweight (OW), obese (O) subjects, and individuals with increased systolic (SBP) and/or diastolic blood pressure (DBP) from the population, when creating normal values of PWVao in children and adolescents. Body mass index (BMI), SBP/DBP cut-off values have remarkably changed in this population during the last decade. Aims of our study were to expand our previously published PWVao database and to revise it by using the recently determined normal values. PWVao was measured by an occlusive-oscillometric device (Arteriograph, TensioMed Ltd, Budapest, Hungary) in a healthy population aged 3-18 years. 7940 (4374 boys) participants were recruited, 1912 OW/O subjects and 1368 individuals with high SBP/DBP were excluded. Finally, n = 4690 (2599 boys) participants were enrolled. Mean PWVao values increased from 5.4 ± 0.6 to 6.4 ± 0.5 m/s (p < 0.05) in boys and from 5.5 ± 0.6 to 6.4 ± 0.5 m/s (p < 0.05) in girls. Mean PWVao values were significantly lower in our new study, in boys in age groups of 9-16, in girls in age groups of 11-17. This is the largest and widest age-ranged database of PWVao published to date. Due to the change of BMI and SBP/DBP reference values during the last decade, the "old" database of PWVao needed to be revised. As a result of this, normal values of PWVao decreased significantly in both sexes.

Increasing trends in childhood overweight have mostly reversed: 30\xa0years of continuous surveillance of Slovenian youth

The aim of this study is to describe trends in overweight and obesity among Slovenian youth for the period 1989–2018. Nearly all schoolchildren in Slovenia had their height and weight measured annually, which lead to a total of 6,738,510 data-points during the 30-year period. The IOTF cut-off points and Joinpoint regression were used to examine annual percent change (APC) in overweight and obesity prevalence across 3 age groups (7–10, 11–14 and 15–18 years). Obesity approximately tripled, while overweight doubled between 1989 and late 2000s in both genders. Since then overweight has been steadily decreasing in all 3 age groups for boys and in 7–10-year-old girls. Obesity has also been declining since 2009, but only in the youngest boys and girls (APC = − 1.9, 95% CI = − 3.2 to − 0.6 and APC = − 1.6, 95% CI = − 3.0 to − 0.2, respectively). Unfavourable trends were noted only in 15–18-year-old girls, with obesity rising at an unchanged rate over the past 30 years (APC = 4.8, 95% CI = 4.5–5.1). Overweight and obesity among Slovenian youth has increased dramatically over the last 3 decades. Still, during the last decade this rise has been reversed or at least stopped. This reversal of trends was more marked in boys than in girls, and in young children compared to adolescents.

Timing of permanent tooth emergence and its association with physical growth among children aged from four to seven years in nine cities of China

Objective: To investigate the timing of permanent tooth emergence and its association with physical growth among children aged 4-7 years in 9 cities of China, and to analyze the trend of permanent teeth development. Methods: According to a stratified cluster sampling design, a cross-sectional survey on the timing of permanent tooth emergence children aged 4-7 years was carried out in 9 cities (Beijing, Harbin and Xi'an in northern China; Shanghai, Nanjing and Wuhan in central China; Guangzhou, Fuzhou and Kunming in southern China) from June to October in 2015. A total of 37 973 children (19 035 boys and 18 938 girls) were recruited and were divided into different age groups (4.0-<4.5, 4.5-5.0, 5.0-5.5 and 6.0-<7.0 years of age). The situation of the exfoliation of primary teeth and the eruption of permanent teeth were investigated. Height and weight were measured using the standardized methods. Z-scores of physical growth indicators were calculated using the growth standards for Chinese children in 2009. Probit regression analysis was used to determine the median and percentile age of transition from deciduous to permanent teeth. Chi-square test was used for comparison of categorical data and t test was used for comparison of measurement data between boys and girls, urban and suburban as well as among different ages and regions. Meanwhile, the data from the national survey on physical growth and development of children under 7 years of age in 9 cities of China in 1995 were used to analyze the trends of the permanent teeth development. Results: The rate of transition from deciduous to permanent teeth in 37 973 children aged 4-7 years was higher with age, which was 0.6% (42/7 568) in 4.0-<4.5 years of age group, 30.3% (2 295/7 583) in 5.5-<6.0 years of age group, and 74.5% (5 680/7 627) in 6.0-<7.0 years of age group. The rates of transition from deciduous to permanent teeth in boys were all lower than those of girls except for children aged 4.0-<4.5 years (all P<0.01). The rate of transition from deciduous to permanent teeth in urban children was higher than that in suburban children for older than 5.5-6.0 years of age group in boys and older than 4.5-5.0 years of age group in girls, which was 74.2% (1 427/1 924) in urban boys aged 6.0-<7.0 years and 69.2% (1 305/1 885) in suburban boys aged 6.0-<7.0 years (χ(2)=11.446, P<0.01). The age of transition from deciduous to permanent teeth was 6.00 (95%CI: 5.98-6.01) years and the range of the 3-97 percentile was 4.88-7.11 years of age. The median permanent tooth emergence age of girls was lower than that of boys (5.94 vs. 6.06 years) and the median age of urban children was lower than that of suburban children (5.94 vs. 6.05 years). The median permanent tooth emergence age of southern Chinese children (6.05 years) was higher than that of northern (5.97 years) and central Chinese children (5.97 years). The weight for age Z-scores (WAZ), height for age Z-scores (HAZ) and body mass index for age Z-scores (BMIZ) of children with transition from deciduous to permanent teeth (0.35±1.17, 0.32±1.00, 0.23±1.16) were significantly higher than those of children without transition from deciduous to permanent teeth (0.03±1.13, 0.03±1.02, 0.04±1.13, t=20.81,21.67,12.09, all P<0.05). In comparison with the data in 1995, data in 2015 showed that the rate of transition from deciduous to permanent teeth was higher, for example, the rate of urban boys aged 6.0-<7.0 years group was 63.8% (1 146/1 796) in 1995, and increased to 74.2% (1 427/1 924) in 2015 (χ(2)=46.748, P<0.01). The median permanent tooth emergence age decreased by 0.24 years in 2015 as compared with that in 1995. Conclusions: The development of permanent teeth is earlier in girls than in boys, earlier in urban children than in suburban children and slightly delay in southern children than in central and northern Chinese children. In addition, the development of permanent teeth, which is related to the physical growth, slightly accelerate in China during the past 20 years.

Are boys and girls just different? Gender differences in the Movement Assessment Battery for Children, 2nd edition (M ABC-2) suggests that they are.

The second edition of the Movement Assessment Battery for Children (M ABC-2) is a standardised, norm referenced assessment that is frequently used by therapists to identify children with motor difficulties. The norms for the M ABC-2 were derived from a sample of children in the United Kingdom (UK) and are combined across the age groups for boys and girls. The aims of this research were to investigate gender differences in the performance of 8- and 9-year-old Australian children and if the norms in our cohort differed from UK-based M ABC-2 norms. Children aged 8 or 9years of age who underwent major neonatal cardiac or non-cardiac surgery and healthy controls were assessed using the M ABC-2 as part of the Development After Infant Surgery (DAISy) study. There were statistically significant differences in the scores for boys and girls aged 8- and 9-years old on the M ABC-2. Girls performed better than boys in manual dexterity and on total standard scores. Our control group compared to the assessment norms scored significantly poorer in manual dexterity, aiming and catching and total standard scores. Caution should be used when interpreting the results of the M ABC-2 for Australian 8- and 9-year olds. Contemporary Australian, gender-specific M ABC-2 norms should be considered. Further research is required to investigate gender differences and differences in performance of Australian children compared to the assessment norms in other age groups on the M ABC-2.

Cash Transfers and Gender Differentials in Child Schooling and Labor: Evidence from the Lesotho Child Grants Programme

Cash Transfers and Gender Differentials in Child Schooling and Labor: Evidence from the Lesotho Child Grants Programme

RISK OF BLOOD PRESSURE MISCLASSIFICATION IN TALL BOYS ACROSS DEVELOPMENTAL PERIODS

Objective: Screening for hypertension in childhood and adolescence represents a key strategy for prevention of early vascular aging and consequent target organ damage later in life. Regarding the effect of anthropometric characteristics, emphasis is presently placed on elevated blood pressure (BP) in overweight/obese children. The effect of height on BP is often underestimated, despite its incorporation into normative BP data. The risk of misclassification of hypertensive vs. normotensive individuals seems to be particularly expressed in boys. Therefore, we aimed to study the relationship between height, measures of adiposity, and BP in healthy normal-weight boys in distinct developmental age periods. Design and method: 250 healthy normal-weight boys in age groups of 7–10 (n = 73), 11–14 (n = 85), and 15–19 years (n = 92) were examined under standard conditions. Weight, height, and waist circumference were measured, and two indices of adiposity were calculated: body mass index (BMI; kg.m-2) and body roundness index (BRI; -). Right brachial BP was measured oscillometrically, and mean BP was used for statistical analyses. Results: In multiple linear regression analysis, out of the three anthropometric parameters (height, BMI, and BRI), BP in adolescents aged 15–19 years was best predicted by height (regression coefficient 25.198 mmHg/m, p = 0.013), compared to BMI and BRI (p = 0.102, p = 0.921, respectively). Linear regression analyses showed significant effects of height and BMI, but not BRI, on mean BP in adolescents aged 15–19 years (height: 29.039 mmHg/m, p = 0.004; BMI: 0.847 mmHg/kg.m2, p = 0.014; BRI: p = 0.252). No significant linear relationship between the anthropometric parameters (height, BMI, and BRI) and mean BP was detected in boys aged 7–10 and 11–14 years. Conclusions: The effect of height on BP was most expressed in adolescent boys aged 15–19 years. BP should be evaluated with caution in this paediatric population due to increased risk of misclassification of normotensive individuals as hypertensive. These findings may be related to both physiological adaptation to greater height and a previously described “spurious” peripheral hypertension resulting from specific alteration of peripheral wave reflection in young tall boys with greater elasticity of the arterial wall.

How to resolve zip injury of prepuce? Better way of manipulation

Background: Entrapment of prepuce in a zipper is a common cause of prepuceal injury in children. It is seen in boys of age group 5-12 years who usually do not wear underpants. About 80% of these injuries occur accidentally while zipping up.Methods: We reported 20 cases with zipper injury during our study period, which were divided in two groups. In Group A, Patients were managed by conventional techniques while in Group B; we managed patients with our technique of manipulation. Final Outcomes were compared with need of circumcision.Results: All patients in this study were male patients. All were from pediatric age group, except one case in Group A was Adult. In Group A, 7 patients (70%) required Circumcision while in Group B study, only 1 patient (10%) required circumcision. Moreover we found this technique more Simple and Easy.Conclusions: We found this technique very easy, less time consuming, less trauma to prepuce and need of Circumcision is less with this manipulation.

BODY MASS INDEX AND MOTOR COORDINATION OF BOYS AND GIRLS AGED 7 TO 9

The aim of this paper is to examine the differences in the overall level of motor coordination between groups of children with different nutritional status. In total, 418 participants of both sexes, aged 7-9, took part in the study. The participants were classified based on their nutritional status into one of four groups: underweight, normal weight, overweight, and obese, according to the International Obesity Task Force. The motor coordination of the participants was assessed using the KTK (Körpercoordination test für Kinder) battery of tests and total point scores were calculated for each age category. The Kruskal-Wallis test was used to examine the differences in the overall motor coordination between groups of participants. Statistical significance was set at the p≤.05 level. The results revealed statistically significant differences in the overall level of motor coordination between all the examined groups of boys with different nutritional status aged 7, 8 and 9. The results of the Mann-Whitney test showed statistically significant differences between all three age groups of boys (7-, 8- and 9-year-olds) in favor of the normal weight groups. The Kruskal-Wallis test revealed no statistically significant differences in the case of the girls. The results of the Mann-Whitney test revealed statistically significant differences between all three age groups of girls (7-, 8- and 9-year-olds) in favor of the normal weight groups. The obtained results showed statistically significantly poorer motor coordination in boys and girls with higher values of body mass index compared to boys and girls with normal body weight across all age groups.

Maximal Static Respiratory and Sniff Pressures in Healthy Children. A Systematic Review and Meta-Analysis.

Respiratory muscle strength in children can be assessed by maximal inspiratory pressures (MIP), maximal expiratory pressures (MEP), and sniff nasal inspiratory pressures (SNIP). However, previous studies involved small cohorts of healthy children and reported wide reference ranges. To perform a systematic review to summarize existing reference ranges for MIP, MEP, and SNIP tests in healthy children and to conduct a meta-analysis to develop comprehensive prediction equations. Five databases were searched for relevant studies from database inception to May 29, 2017. Study inclusion was limited to publications that evaluated MIP, MEP, and SNIP values in healthy children aged 18 years or younger. Studies were also excluded if testing methodology differed greatly from the 2002 American Thoracic Society Statement on Respiratory Muscle Testing. Requests for raw data were made to authors via e-mail. A total of 18 studies including 3,509 children were systematically reviewed. Diagnostic accuracy of the included studies was assessed using the QUADAS-2 tool, which revealed a high risk of bias for flow and timing and for applicability that may influence the generalizability of our findings. All 18 studies evaluated respiratory pressures in children in seated position. MIP tests were conducted from residual volume, MEP tests from total lung capacity, and SNIP tests from functional residual capacity. The MIP and MEP values in three age groups for boys and girls were summarized using meta-analysis based on individual participant data from five studies containing 1,709 healthy children. Further analyses showed that MIP and MEP were significantly greater in boys than in girls (P < 0.0001). In both sexes, MEP values were always greater than MIP values (P < 0.05). Multivariable random effects models were then performed to establish sex-specific prediction equations. These equations found age, height, and weight to be significant predictor variables. Only two studies with SNIP values from healthy children were included in the review, but they were not part of the meta-analysis. We summarized the available reference ranges for MIP, MEP, and SNIP tests based on existing literature, especially for three age groups, and developed prediction equations that can be used in pulmonary function laboratories to aid clinicians. Existing literature on SNIP tests is limited, and future studies are encouraged to explore their use in children. Systematic review registered with the International Prospective Register of Systematic Reviews (PROSPERO; CRD42017072004).

A prospective study to appearances of ossification centers in the carpal bones in boys of age group 5 years to 12 years in western Rajasthan Jodhpur region

A prospective study to appearances of ossification centers in the carpal bones in boys of age group 5 years to 12 years in western Rajasthan Jodhpur region