Prevalence Of Urinary Abnormalities Research Articles

Urinary abnormalities in asymptomatic secondary school children in Calabar, Nigeria

Introduction: Many patients with kidney disease are asymptomatic but may have abnormalities in urine. The aim of this study was to determine the prevalence of urinary abnormalities (UA) in asymptomatic secondary school children in Calabar, Nigeria and its relationship with age, sex, social class, body mass index and blood pressure.
 Methodology: It was a descriptive cross sectional study of 407 apparently healthy secondary school children aged 10-18 years recruited by multistage sampling techniques in June-July, 2022. Semi-structured questionnaires were used to obtain their bio-data and clinical history. Subject’s height and weight were measured using a stadiometer and body mass index (BMI) calculated. Blood pressure of each subject was measured using auscultatory method. Early morning urine was obtained from each subject and urinalysis done using dipstick- combi 10. The result of urinalysis was recorded. Data were analyzed using SPSS version 22.0 and p- value ≤ 0.05 was significant.
 Results: Out of 407 participants, 162 (39.8%) were males and 245 (60.2%) females giving a M:F ratio 1:1.5. The mean age was 13.5 ± 1.9 years. The prevalence of urinary abnormalities was 115 (28.3%) with many having more than one abnormality. Age group 13-15years were more commonly affected. Nitrituria 75(18.4) was the most frequent urinary abnormality followed by proteinuria 38 (9.3%), leucocytes14 (3.4%) andhaematuria 5(1.2%). There was no glucosuria. Nitrituria was statistically significant among females (p=0.040). Blood pressure, overweight and obesity were not statistically significant in relation to urinary abnormalities.
 Conclusion: The prevalence of urinary abnormalities was high among secondary school children but commoner in females and mainly nitrituria, proteinuria, leucocytes and haematuria. We therefore recommend regular screening for urinary abnormalities among secondary school children in our environment for early detection and prevention of renal diseases

Urinary screening for detection of renal abnormalities in asymptomatic pre-school children referred to Ardabil city health centers from 2016 to 2017

Background: Urinary screening for detection of proteinuria, hematuria, and pyuria for early diagnosis curable or preventable renal disease in three decade has been considered. The aim of this study was urinary screening for Detection of renal abnormalities in asymptomatic pre-school children referred to health center in Ardabil city from 2016 to 2017.Methods: This was a cross-sectional descriptive study that has been done on urine specimens of 350 children who referred to Ardabil city health center to injection DTP vaccine from April 2016 to Sep 2017. In these infants, proteinuria, hematuria, pyuria and urinary casts were examined and abnormal finding were referred to future investigation to nephrologist. Information was collected and analyzed by statistical methods in SPSS version 21.Results: A total of 350 children were enrolled in the study. There were 196 (56%) boys and 154 (44%) girls. The prevalence of urinary abnormalities in all children was 8.3%. Of all urinary abnormalities, proteinuria and hematuria were detected in 12 children (3.44 %). Of all infants, 9 children (2.57%) had pyuria. Also, 6 children (1.8%) had urinary casts that of them two cases had acid ureic cast and four cases had calcium oxalate cast.Conclusions: This study showed that the prevalence of urinary abnormalities in Ardabil city children was similar to other studies in other country or cities. The reasons of this may be different in race and ethnic. We suggest that routine urinalysis should be part of screening of children at the school entry in Ardabil.

Prevalence and pattern of urinary abnormalities among apparently healthy adult Nigerians

Background: Urinalysis is a simple and cheap method of screening for systemic diseases including kidney disease and may open a window of opportunity for prevention/early treatments especially in resource-constrained settings like Nigeria. We therefore studied the pattern of urinary abnormalities among an apparently healthy urban population. Methods: Mid-stream clean catch urine samples were collected from 1048 apparently healthy subjects and tested for urinary abnormalities using the dipstick method following a health promotional talk in Idi-araba, a Lagos slum. Results: A total of 1048 randomly selected subjects with a mean age of 38.7 ΁ 14.5 years (age range 18-85 years) were screened. This consisted of 597 (57%) females and 451 (43%) males. Protenuria, hematuria, leucocyturia, nitrituria, and glucosuria were present in 18.9%, 1.7%, 9.2%, 1.8% and 2% of the subjects respectively. Proteinuria and haematuria was more prevalent in subjects aged ≥40 years (P < 0.05). The prevalence of leucocyturia, nitrituria, and glucosuria were independent of age (P < 0.05). There were no gender differences in the prevalence of urinary abnormalities (P < 0.05). Four hundred and forty-four (42.3%) of the cohort had hypertension (HTN). Proteinuria and leucocyturia were more prevalent in hypertensive subjects (P < 0.05) while hematuria, nitrituria, and glucosuria was independent of hypertensive status of subjects (P < 0.05). Conclusion: Urinary abnormalities are common among apparently healthy adults in Lagos. It is therefore recommended that it should be routinely done as a cheap screening tool and further evaluation conducted where necessary. This may result in cheaper treatment and better outcomes.

Epidemiological urinalysis of children from kindergartens of Can Gio, Ho Chi Minh City - Vietnam

BackgroundRecent studies on Vietnamese children have shown that kidney diseases are not detected early enough to prevent chronic renal failure. The dipstick test is a simple and useful tool for detecting urinary abnormalities, especially in isolated or remote areas of Vietnam, where children have limited access to health care.MethodsThis cross-sectional study was conducted in 2011 at seven kindergartens in Can Gio district, Ho Chi Minh City, Vietnam. Two thousand and twelve children, aged 3 to 5, were enrolled. Morning mid-stream urine samples were examined by dipstick. Children with abnormal findings were re-examined with a second dipstick and underwent further investigations.ResultsUrinalysis was available for 1,032 boys and 980 girls. Mean age was 4.4 ± 0.8 years. Urinary abnormalities were detected in 108 (5.5%) of the subjects. Among them, nitrituria and leucocyturia accounted for more than 50%. Positive fractions of proteinuria, hematuria, nitrituria, leucocyturia, and combined nitrituria and leucocyturia after two dipsticks were 0.1%, 0.1%, 2%, 1% and 0.3%, respectively. Abnormal findings were more common in girls than boys (p < 0.001), and higher in communes with very low (< 50 persons/km2) population density (14.3% vs 4.1%, p < 0.001). A renal ultrasound detected four cases of hydronephrosis and one case of duplication of ureter.ConclusionsThe prevalence of urinary abnormalities in asymptomatic children in South Vietnam demonstrates the need for hygiene education among parents. Training for dipstick usage for all medical staff at health stations, especially in remote areas and in places with very low population density, is also clearly necessary. Routine urinalysis can be set up if a close control is conducted at locations.

National Health Survey on the Prevalence of Urinary Abnormalities in the Population: then and now (1975 to 2012)

This paper presents the results of a community survey on urinary abnormalities which covered 1/80th of the population of Singapore in 1975. These findings were compared with the data from the Singapore National Service Registrants in 1974 as well as data from a recent survey in Singapore and that of other Asian and Western countries. The study covered 18,000 persons aged 15 years and above, representing a sampling fraction of 1/80th of the population. A total of 16,808 respondents attended the field examination centres, of whom 16,497 had their urine sample tested representing 92.7% of the sample population. In the dipstick urine testing at the field examination centres, 769 subjects (4.6%) were found to have urinary abnormalities. Two hundred and eighty-two (36.7%) of these 769 subjects were found to have urinary abnormalities based on urine microscopy constituting a prevalence of 1.71%. The prevalence of proteinuria was 0.63% and for both haematuria and proteinuria was 0.73%. The prevalence for hypertension was 0.43% and renal insufficiency was 0.1%. The consensus is that routine screening for chronic kidney disease (CKD) in the general population is not cost effective as the yield is too low. Whilst, most studies showed that screening of the general population was not cost effective, it has been suggested that screening for targeted groups of subjects could help to identify certain risk groups who may benefit from early intervention to prevent or retard the progression of CKD. The prevalence of urinary abnormalities in Singapore has remained the same, now and three decades ago.

High Prevalence of Risk Factors for Chronic Kidney Disease in Balkan Endemic Nephropathy Foci

Background/Aims: The aim of this study was to find out the prevalence of the most frequent risk factors for chronic kidney disease (CKD) and the prevalence of urinary abnormalities in adult inhabitants of three Balkan endemic nephropathy (BEN) villages near Bijeljina, Bosnia and Herzegovina. Methods: The survey consisted of an interview, blood pressure measurement, and urine dipstick test for proteinuria, hematuria, and glycosuria. Results: The study involved 1625 (739 males, aged 51 ± 16 years) subjects: 319 (19.6%) with positive family history for BEN, 585 (36%) with hypertension, 604 (37.2%) above 60 years, 146 (9%) with diabetes, and 566 (34.8%) with none of these risk factors. Proteinuria was present in 6.2–7.1% of the subjects with risk factors for CKD but in 3.4% of those without risk factors. Systolic blood pressure and BEN in brother/sister were found to be significant variables associated with proteinuria, but female gender and history of kidney disease with hematuria. Conclusion: In addition to a family burden for BEN, other risk factors for CKD were highly prevalent in BEN villages of the Bijeljina municipality. The frequency of proteinuria was higher in the at-risk group than in the group without risk factors and increased with the number of risk factors.

Proteinuria screening for children

In Japan, urine screenings are performed annually at school for proteinuria and hematuria, but the effectiveness of this practice has not been clarified. Urine screening at school was performed, and we investigated the prevalence of urine abnormalities and incidence and the causes of their diseases. Therefore, we studied effectiveness of the school-screening program. The prevalence of urinary abnormalities was 0.52% among elementary school children and 0.75% among junior high school children. The incidence was 0.24% among elementary school children. The school-screening program is effective in early detection of glomerulonephritis, so the number of new end-stage renal disease (ESRD) patients starting treatment has been changing. The school-screening program is effective for early detection of glomerulonephritis. In case of generations who underwent the school-screening program, the age that one develops ESRD has been rising year by year, and the number of new ESRD patients starting treatment before 20 years old is lower in Japan than in America. The school-screening program in Japan represents a highly effective mass screening technique.

Abnormalities of renal function in the elderly.

To investigate the glomerular and proximal tubular renal function and the prevalence of urinary abnormalities in the elderly. Cross-sectional study. General community in the city of São Paulo. A population-based sample of 200 elderly subjects was randomly selected. Of these, 81 subjects (45 females and 36 males; mean +/- SD age: 73.7 +/- 6 years) accepted to undergo laboratory examination and were included in the study. 24-h creatinine clearance (CCr), microalbuminuria, urinary retinol-binding protein (urRBP), leukocyturia, hematuria and total proteinuria. CCr was lower than 80 ml/min/1.73 m2 in 68% of the subjects. The median (range) CCr was 65 ml/min/1.73 m2 (21-112) in males and 77 ml/min/1.73 m2 (27-107) in females (p = 0.14). No individual had serum creatinine greater than 1.5 mg/dl. urRBP determination was normal in 79 of 81 subjects. The prevalence of microalbuminuria (> 20 micrograms/ml) was 31% (n = 25, 19 men and 6 women). These individuals presented higher mean systolic blood pressure (147 +/- 20 vs. 135 +/- 22 mmHg, p = 0.02) and mean serum creatinine (1.13 +/- 0.20 vs. 0.96 +/- 0.20 mg/dl, p < 0.01) than those without microalbuminuria. The prevalence of leukocyturia (> 10,000/mm3), hematuria (> 10,000/mm3) and total proteinuria (> or = 0.3 mg/dl) was 19%, 28% and 5% in males and 33%, 27% and 4% in females. Glomerular dysfunction and urinary abnormalities are frequent features in the elderly, however, proximal tubular dysfunction is uncommon in this population.