Communities In Shanghai Research Articles

Incidence and risk factors associated with progression to mild cognitive impairment among middle aged and older adults.

We performed this longitudinal 2-year follow-up study to determine the incidence and risk factors associated with MCI in middle-aged and older adults. This community-based longitudinal study was conducted in adults aged ≥ 50 years with normal cognitive function in Shanghai community, China, over a period of two years. Information about the socio-demographic, behavioral, anthropometric, and biochemical parameters was obtained at the baseline and cognitive function was assessed at the end of the follow-up period using the Montreal cognitive assessment tool. A total of 985 participants aged ≥ 50 years were included in the analysis. Incidence of MCI during the 2-year follow-up period among the study participants was 26.7% (95% CI: 24.0%-29.6%). Participants with lower level of education [primary - adjusted RR=2.79 (95% CI: 1.38-5.64 and secondary - adjusted RR=1.62 (95% CI: 1.17-2.24)], with history of cerebral infarction (adjusted RR=1.49; 95% CI: 1.05-2.12), history of cerebral hemorrhage (adjusted RR=3.20; 95% CI: 1.22-8.40) were found to have significantly higher risk of MCI. Regular tea consumption was associated with significantly reduced risk of MCI development (adjusted RR=0.69; 95% CI: 0.49-0.96). Our study found that one in four participants developed MCI during the 2-year follow-up period. Lower educational level, history of cerebral infarction, cerebral hemorrhage and tea consumption were significant determinants of MCI incidence. The target groups identified in this study should be closely monitored with regular follow-up investigations for early diagnosis and appropriate management of the condition.

Exercise Adherence and Compliance and Its Related Factors Among Elderly Patients with Type 2 Diabetes in China: A Cross-Sectional Study.

To explore exercise adherence and compliance as well as its related factors among elderly patients with type 2 diabetes mellitus (T2DM) to provide a basis for clinical intervention strategies. The present study was a cross-sectional study of 205 elderly patients with T2DM who regularly visited a Shanghai community health center from August 2020 to July 2021. Exercise adherence and compliance was measured using an exercise adherence and compliance questionnaire, and potential correlates were explored using multiple linear regression analysis. The mean total score of the exercise adherence and compliance questionnaire was 16.72±5.08. The stepwise regression results revealed that exercise adherence and compliance was positively correlated with self-monitoring (F=3.510, P=0.005), exercise knowledge (r=0.784, P<0.001), exercise willingness (r=0.556, P<0.001), professional support (r=0.426, P<0.001), and self-efficiency (r=0.5, P<0.001). There was a negative correlation between hypoglycemia and exercise adherence and compliance (F=-3.672, P<0.001). Low exercise adherence and compliance was related to low glucose self-monitoring frequency, increased hypoglycemia, less exercise knowledge, less exercise willingness, less professional support, and less self-efficiency. When developing exercise instructions adapted to the cognitive and volitional needs of diabetic patients, it is essential to focus on their daily self-management habits and extrinsic motivation to improve exercise adherence and compliance.

Analysis on the promotion problems of adding elevators in old communities in Shanghai——Based on 67 interviews in Pudong New Area, Shanghai

At present, the renovation of old houses is in a prominent position in the urban renewal system. In the form of interview, this paper selects 4 towns in Pudong New Area of Shanghai, a total of 8 communities, and uses the method of accidental investigation to collect 67 interview materials. Through the collation of interview data, it reveals the complexity of the main body of installing elevators in old residential areas, the one sidedness of promotion and the singleness of form.

Prediction of mould growth rate within building envelopes: development and validation of an improved model

Mould growth is a common problem in building envelopes. This issue is usually caused by poor design and construction of walls and results from the difference between indoor and outdoor climatic conditions. Mould spores produced by mouldy walls may diffuse into the air, thereby affecting indoor air quality and threatening occupant health. Therefore, it is important to predict the risk of mould growth in building envelopes under various conditions. This study selected three buildings from a traditional community in Shanghai, China. First, the mould species in these building envelopes were identified. Based on the identification results, the growth rate of the corresponding genera was extracted from the literature to establish an isoline model that describes mould growth on the agar surface. In addition, the mould growth rate between and outside the isoline areas was predicted by modifying the Sautour model to relevant air temperature and humidity conditions. According to the results of the proposed model, the critical temperature and humidity that allow the growth of representative moulds from the buildings selected for this study can be expressed as φ=0.002633·cosh[0.10083·( θ-30)]+0.7153. The accuracy of the above model was verified experimentally, and the maximum relative error of the growth rate was within 25%.

Association of serum secreted protein acidic and rich in cysteine-like protein 1 with metabolic measures and dyslipidemia among Chinese adults.

Recent studies found that secreted protein acidic and rich in cysteine-like protein 1 (Sparcl1) could inhibit lipid droplets accumulation by peroxisome proliferator-activated receptor-gamma (PPARγ) signal pathway. However, the associations of serum Sparcl1 level with lipids profiles and other metabolic phenotypes remain unknown in human population study. We determined serum Sparcl1 using sandwich enzyme-linked immunosorbent assays among 1750 adults aged 40 years and older from a community in Shanghai, China. Generalized linear regression models were used to evaluate the association between Sparcl1 and metabolic measures. Multivariable-adjusted logistic regression analyses were performed to evaluate the relationship of serum Sparcl1 with prevalent dyslipidemia. With the increment of serum Sparcl1, participants tended to have lower level of triglycerides, and higher level of high-density lipoprotein cholesterol (all P for trend &lt; 0.01). No significant associations between serum Sparcl1 and glucose, blood pressure, or body size were observed. The generalized linear regression models suggested that per standard deviation (SD) increment of serum Sparcl1 was significantly inversely associated with triglycerides (β= -0.06, P=0.02). The prevalence of dyslipidemia decreased across the sparcl1 quartiles (P for trend &lt;0.01). After controlling the potential confounders, participants in the highest quartile of sparcl1 concentration had the lowest prevalence of dyslipidemia (odds ratio [OR], 0.69; 95% confidence interval [CI], 0.52-0.91), compared with the lowest quartile. Per SD increment of Sparcl1 was associated with 20% (OR, 0.80; 95%CI, 0.69-0.94) lower prevalence of hypertriglyceridemia and 12% (OR, 0.88; 95%CI, 0.79-0.97) lower prevalence of dyslipidemia. The association between serum Sparcl1 and dyslipidemia were generally consistent across subgroups (all P for interaction &gt; 0.05). Serum Sparcl1 was significantly associated with decreased risk of prevalent dyslipidemia in Chinese population. Further studies are warranted to confirm this association.

Microbial characteristics of domestic waste in a typical residential community of Shanghai

Microbial characteristics of domestic waste in a typical residential community of Shanghai

Association between early life famine exposure and risk of metabolic syndrome in later life.

BackgroundPrevious studies reported that famine exposure had an effect on metabolic syndrome (MetS). However, there is an inadequacy of study regarding the association between famine exposure, adulthood general obesity, and the risk of MetS.MethodsA total of 8883 subjects aged ≥40 years from Jiading community in Shanghai were included. We defined famine exposure subgroups as nonexposed (1963–1974), fetal exposed (1959–1962), childhood exposed (1949–1958), and adolescence exposed (1941–1948). MetS was defined based on the National Cholesterol Education Program Adult Treatment Panel III (NCEP‐ATP III) criteria.ResultsCompared with the nonexposed group, the risks of MetS were increased in the fetal‐, childhood‐, and adolescence‐exposed groups with odds ratios (OR) and 95% confidence intervals (CI) of 1.48 (1.23–1.78), 1.89 (1.63–2.20), and 2.34 (1.99–2.74), respectively. After adjusting for sex, age, smoking status, drinking status, education, body mass index (BMI), and physical activity, the increased risk of MetS related to the fetal‐exposed and childhood‐exposed groups with OR and 95% CI of 1.42 (1.04–1.94) and 1.50 (1.02–2.21), respectively, were observed only in women. Famine exposure was significantly associated with MetS among individuals with a BMI < 23 kg/m2 (p for interaction between BMI categories and famine exposure = 0.0002 in the whole cohort), while there existed a gender difference (p = 0.0023 in females, p = 0.4484 in males). When evaluating the joint effects of the combination of famine exposure in early life and general obesity in adulthood on MetS, we observed the highest estimate in participants with both adulthood general obesity and fetal famine exposure (OR 17.52; 95% CI, 10.07–30.48) compared with those without famine exposure nor adulthood obesity.ConclusionsObesity in adulthood significantly further aggravated the risk of MetS in individuals who experienced early life undernutrition, especially in females.

Neck circumference for predicting the occurrence of future cardiovascular events: A 7.6-year longitudinal study

Background & aimsThis study aimed to investigate whether neck circumference (NC) could be used to predict future cardiovascular (CV) events in a community-based Chinese cohort. Methods and resultsWe enrolled 1435 participants aged 50–80 years (men, 43.62%) from communities in Shanghai. High NC was defined as NC ≥ 38.5 cm in men and NC ≥ 34.5 cm in women. Kaplan-Meier analysis and Cox proportional hazards regression were performed to explore the association between NC and CV events. During a mean follow-up period of 7.6 years, 148 CV events (10.31%) occurred. The incidence of CV events was higher in men than in women (83 (13.26%) vs. 65 (8.03%), P = 0.002). Multivariable-adjusted Cox regression analysis showed that for every 1-SD increase in NC in the whole population, the hazard ratio (HR) of CV events was 1.45 (95% confidence interval [CI], 1.15–1.83). The dose-response association between NC and CV events was significant in men (HR, 1.37, 95% CI, 1.10–1.71) but not in women (HR, 1.19, 95% CI, 0.94–1.52). In comparison with participants showing low baseline NC, those with high baseline NC showed a significantly higher risk of CV events (HR, 1.59, 95% CI, 1.14–2.22). Further stratified by sex, the positive association remained significant in men (HR, 1.90, 95% CI, 1.21–2.98) but not in women (HR, 1.25, 95% CI, 0.75–2.07). ConclusionNC was significantly associated with the risk of future CV events in middle-aged and elderly populations in the community and was a better predictor in men.

Personalized nutrition intervention improves nutritional status and quality of life of colorectal cancer survivors in the community: A randomized controlled trial

ObjectivesThis study aimed to evaluate the effects of personalized nutrition intervention combined with telephone-based education on the nutritional status of colorectal cancer survivors and their quality of life. MethodsIn this randomized, parallel-controlled trial, 60 colorectal cancer survivors who met the eligibility criteria were recruited from a community in Shanghai and randomly assigned 1:1 into nutrition intervention and routine care groups. The routine care group received a follow up by telephoneafter 6 months. The nutrition intervention group received personalized nutritional interventions and telephone-based education through the WeChat app for 6 mo. Nutrition status, dietary intake, and quality of life were measured and compared between the groups. ResultsOf the enrolled participants, 56 participants were included in the modified intent-to-treat analysis for comparison. After the 6-mo intervention, the nutrition group had a statistically lower patient-generated subjective global assessment score and higher energy and protein intake compared with the routine care group. Moreover, the nutrition intervention group gained more weight (2.00 kg; 95% confidence interval, 0.25–3.00) than the routine care group (0.00 kg; 95% confidence interval, –1.75 to 0.00). Meanwhile, compared with the routine care group, the nutrition intervention group had significantly higher global health status, as well as physical, role, emotional, cognitive, and social functioning (P < 0.05). ConclusionsPersonalized nutrition interventions, combined with telephone-based education, provided by community health service centers can improve colorectal cancer survivors' nutritional status and quality of life. Personalized nutrition intervention for cancer survivors warrants further investigation in confirmatory studies.

Risk factors for depression among older adults living alone in Shanghai, China.

Rapid population ageing and the increasing number of older adults living alone are important phenomena. Older adults are prone to depression. This study aimed to investigate the depression of older adults living alone in Shanghai and its risk factors. The data from the survey of quality of life of community-dwelling older adults in Shanghai from April 2015 to March 2016 was used in this study. A total of 387 older adults living alone in two communities in Shanghai participated in this study. Structured questionnaires were used to collect data, including depression, the presence of chronic diseases, functional ability, self-rated health, loneliness, social support and sociodemographic variables. The prevalence of depression was 26.9%. There were significant differences across the participants of different genders, education levels, previous occupations, economic levels, residential areas, physical activity levels, chronic diseases, functional ability levels, levels of self-rated health, loneliness levels and social support levels (P < 0.05). Binary logistic regression analyses found that self-rated health (odds ratio (OR)=5.914, P=0.001) and loneliness (OR=1.132, P < 0.001) were risk factors of depression. The psychological and physical health of older adults living alone need to be emphasised. Appropriate interventions could be implemented to prevent depression, so as to promote the quality of life of older adults, and achieve active ageing and healthy ageing.

How does neighbourhood environment influence loneliness in later life in Urban China? The role of financial status.

This study aimed to examine whether older adults' financial status moderated the association between neighbourhood environment (i.e. physical and social environment) and loneliness among older adults in urban China. A cross-sectional survey was collected from urban communities of Shanghai in mid-2020. The final analytic sample was 459 older adults (age range=60-91 years; proportion of women: 55.8%). Multiple group analysis was applied to test the hypothesised model. A measurement model of community social capital (i.e. cognitive and structural dimensions of social capital), a crucial indicator of neighbourhood social environment, was first established in both high-income and low-income groups. Factor loading invariance was established in these two groups. The results show that structural social capital (i.e. organisation memberships, volunteering, social participation and citizenship activities) was negatively associated with loneliness among older respondents from the high-income group only, whereas better community security was significantly associated with lower levels of loneliness among low-income older respondents only. The findings imply that both structural social capital and household income should be considered as important indicators in needs assessment among lonely older adults. Future social policies and interventions should pay attention to enhancing the role of both social and physical neighbourhood environment among older adults.

Efficacy of comprehensive cognitive health management for Shanghai community older adults with mild cognitive impairment

BackgroundThe management of modifiable risk factors and comorbidities may impact the future trajectory of cognitive impairment, but easy-to-implement management methods are lacking.AimsThis study investigated the effects of simple but comprehensive...

Frailty in Community-Dwelling Adults Aged 40 Years and over with Type 2 Diabetes: Association with Self-Management Behaviors.

Background: Evidence is lacking on risk factors for frailty and prefrailty and their relationship with self-management behaviors in patients ≥40 years of age with type 2 diabetes. Methods: Participants were selected as a cross-sectional cohort at five communities in Shanghai, China during January–March 2021. The modified FRAIL scale and the Summary of Diabetes Self-Care Activities (SDSCA) measure were used. Results: Of the 558 participants, 10.2% were classified as frailty and 34.1% as prefrailty. The prevalence of frailty was higher in males than in females (p = 0.009), whereas females were associated with higher odds of prefrailty (aOR 1.67, 95% CI [1.08–2.60]). Multimorbidity, ≥3 chronic diseases, and hospitalization in the past year were considered risk factors for both frailty and prefrailty. Each point earned on SDSCA and physical activity were associated with lower odds of frailty (aOR 0.95, 95% CI [0.92–0.98]) and prefrailty (aOR 0.52, 95% CI [0.31–0.85]), respectively. Frail participants performed significantly worse self-care practice than prefrail and non-frail ones, especially on diet, physical activity, and medication adherence (p < 0.001). Conclusions: Frail patients ≥40 years of age with type 2 diabetes reported poorer self-care performance. Further interventional studies are warranted to clarify their causal relationship.

Blood Lead Level Is Associated with Visceral Adipose Dysfunction in Patients with Type 2 Diabetes.

We aimed to explore whether an elevated blood lead level (BLL) is associated with visceral adipose dysfunction in patients with type 2 diabetes mellitus (T2DM). Four thousand one hundred and fourteen diabetic participants were enrolled from seven communities in Shanghai in 2018 in the cross-sectional METAL study. BLL was measured by graphite furnace atomic absorption spectrometry. Visceral adiposity index (VAI) and lipid accumulation product (LAP)were calculated by simple anthropometric and biochemical parameters. We found that medians (IQR) of BLL were 26.0μg/L (18.0-37.0) for men and 25.0μg/L (18.0-35.0) for women, respectively. In men, each doubling of BLL was associated with a 2.0% higher VAI (95% CI, 0.6 to 3.5%) and 1.8% higher LAP (95% CI, 0.2 to 3.3%) after full adjustment. Using the lowest BLL quartile as the referent group, significant positive trends were observed for BLL with VAI and LAP. In women, each doubling of BLL was associated with a 1.9% higher LAP (95% CI, 0.6 to 3.1%). Additionally, there was a marginally significant positive association between BLL and VAI, either using log2-transformed concentrations as continuous variables or categorized in quartiles. In conclusion, lead exposure is associated with visceral adipose dysfunction in patients with T2DM. Further prospective studies are warranted to confirm our findings.

Fitness Culture and Green Space Equity: Accessibility Evaluation of Shanghai Communities

In China, sports parks, and green spaces are often spatially integrated to realize the multiple functions of shared green spaces and play an important role in the production and living services of its residents. In this article, it is collectively referred to as green sport space (GSS). Whether the distribution of GSS is equal has an important impact on the sustainable lifestyle and the rehabilitation under the pandemic. Based on the POI data of the Shanghai urban area, it is preliminarily found that the areas with extremely high and high production and living densities are mainly distributed in downtown Shanghai. Polarization of the GSS distribution area and the high heat of points of interest can be seen. When the service radius of the GSS in Shanghai is 500, 750, and 1,000 m, the green space ecological service area can reach 2089.08, 3164.62, and 4469.75 km2, covering 26.17, 39.64, and 55.99% of the total area, respectively. The coverage for walking accessibility of GSSs in Shanghai is extremely uneven. Based on network analysis, the overall accessibility of GSS under the walking mode in each residential district fails to meet the standard of a 15-min living circle, with an average of 15.37 min. The evaluation results of this plan demonstrate that Shanghai needs to further provide GSS space for the public in future to improve public wellbeing and diversify sports spaces.

Older residents’ sense of home and homemaking in rural-urban resettlement: A case study of “moving-merging” community in Shanghai

Older residents’ sense of home and homemaking in rural-urban resettlement: A case study of “moving-merging” community in Shanghai

Change of neck circumference in relation to visceral fat area: a Chinese community-based longitudinal cohort study

Background/ObjectivesNeck circumference (NC) has been positively associated with visceral fat area (VFA) in cross-sectional studies. This study aimed to evaluate the effects of NC changes on VFA in a Chinese community-based longitudinal cohort.Subjects/MethodsSubjects recruited from Shanghai communities were followed up for 1.1–2.9 years. A total of 1421 subjects (men 578, women 843) were included, aged 24–80 years, with an average age of 57.8 ± 7.1 years.Interventions/MethodsBiochemical and anthropometric measurements, including NC, were obtained from all subjects. VFA was assessed by magnetic resonance imaging. Abdominal obesity was defined as a VFA ≥ 80 cm2.ResultsAfter a mean follow-up of 2.1 years, the NCs for men and women were 38.1 ± 2.3 cm and 33.8 ± 2.0 cm, respectively, and the average value of VFA was 84.55 (59.83–113.50) cm2. After adjusting for age, sex, body mass index, smoking, history of drinking, glycated hemoglobin, blood pressure and blood lipids, individuals who had gained a NC of more than 5% had 1.26 (95% CI: 1.05–1.49) times more visceral adipose tissue at follow-up than NC maintainers (NC change between –2.5% and 2.5%). In the non-abdominal obesity group at baseline (n = 683), after adjusting for confounding factors, changes in NC were associated with abdominal obesity (odd ratio 1.23, 95% CI: 1.09–1.39).ConclusionsChanges in NC were positively associated with VFA in a Chinese community-based cohort, suggesting that NC measurement is practical for assessing abdominal obesity.

A PROSPECTIVE STUDY ON THE ASSOCIATION BETWEEN ATRIAL FIBRILLATION AND BLOOD PRESSURE IN AN ELDERLY CHINESE POPULATION

Objective: In the present prospective study, we investigated the association between atrial fibrillation (AF) and blood pressure (BP) in an elderly Chinese population. Design and method: Elderly (aged 65 years and over) residents were recruited from 6 communities in Shanghai from 2006 to 2020. 9019 participants who did not have AF at baseline had at least one ECG recording during follow-up. BP status at baseline was defined according to the European hypertension guidelines as optimal, normal, or high-normal BP, and stage 1, 2 or 3 hypertension. Results: During a median of 3.5 years follow-up, the overall incidence rate of AF was 5.6 per 1000 person-years (n = 178, men vs. women: 7.0 vs. 4.5 per 1000 person-years, P = 0.008). The AF incidence increased with both higher systolic and diastolic BP. Statistical significance was achieved for age- and sex-adjusted hazard ratio (HR) relative to optimal BP in stage 2 or 3 systolic hypertension (1.78, 95% confidence interval [CI] 1.04–3.05, P = 0.03) and in stage 1 (1.67, 95% CI 1.01–2.77, P = 0.04) and stage 2 or 3 systolic and diastolic hypertension (1.93, 95% CI 1.11–3.33, P = 0.02) and for fully adjusted HR relative to optimal BP in stage 2 or 3 systolic and diastolic hypertension (1.76, 95% CI 1.00–3.08, P = 0.05). The association between AF incidence and BP status tended to be stronger in participants with no than those with a history of cardiovascular disease at baseline (P for interaction = 0.06). Indeed, in participants with no history of cardiovascular disease at baseline, multivariate-adjusted HRs of AF relative to their counterparts with optimal BP were statistically significant in stage 1 (1.76, 95% CI 1.00–3.11 P = 0.05) and stage 2 or 3 systolic hypertension (2.08, 95% CI 1.12–3.85, P = 0.02) and stage 1 (1.93, 95% CI 1.06–3.50, P = 0.03) and stage 2 or 3 systolic and diastolic hypertension (2.34, 95% CI 1.24–4.44, P = 0.01). Conclusions: In the Chinese people aged 65 years and over, AF incidence is higher with high BP, especially systolic hypertension and in the absence of cardiovascular disease.

Development and validity of computerized neuropsychological assessment devices for screening mild cognitive impairment: Ensemble of models with feature space heterogeneity and retrieval practice effect

ObjectiveThis study aimed to develop and validate computerized neuropsychological assessment devices for screening patients with mild cognitive impairment (MCI). MethodsWe conducted this study in three phases. Phase I involved the development of a conceptual framework of Memory Guard (MG) based on the principles of the cognitive design system (CDS). Phase II involved three steps of feature engineering: item development, filter, and wrapper. Based on the initial items, the number of items in each dimension was determined through analytic hierarchy process. We constructed an initial set with a total of 198 items with three levels of difficulty. Next, we performed feature selection through comprehensive reliability and validity tests, which resulted in the best item bank of 38 test items. The features for modeling were obtained from the best item bank (option scores, reading time scores and total time scores), demographic variables and their MoCA groups. Regarding the heterogeneity of the feature space, we combined the AdaBoost with the Naive Bayes classification algorithm as the decision model of MG. For the screening tool to be used repeatedly, the retrieval practice effect was considered in the design. Phase III involved the validation of measuring instruments. The features incorporated into the modeling process were optimized based on the classification accuracy and area under curve. We also verified the classification effect of the other three classification models with MG. ResultsAfter three steps of feature engineering, a total of 6 dimensions of cognitive areas were included in MG: orientation, memory, attention, calculation, recall, and language & executive function. 38 features were included in the model (17 features of option score, 20 features of time score, and 1 demographic feature). A total of 333 individuals from two communities in Shanghai and Henan province were included in the measuring instrument verification process. Women accounted for 68.2% of the sample. The median age was 63. 15.3% of the participants had bachelor’s degrees or above and 111 participants lived in urban areas (33.3%). The results showed that MG had an accuracy of 93.75% and AUC of 0.923, with a sensitivity of 91.67% and a specificity of 95.45%. Compared to the other three classification models, MG that combined the AdaBoost with the Naive Bayes classification algorithm was the most accurate classifier. ConclusionsMG was proved to be reliable and valid in early screening for patients with MCI. MG that integrated heterogeneous features such as demography, option scores, and time scores had a better predictive performance for screening MCI.

Efficacy of a Self-Designed Questionnaire for Community Screening of COPD.

PurposeTo evaluate the screening efficacy of a self-designed questionnaire for chronic obstructive pulmonary disease (COPD) and the potential gender disparity in its efficacy.Patients and MethodsA screening questionnaire, the COPD Screening Questionnaire-Minhang (COPD-MH), was designed with reference to the self-scored COPD population screener (COPD-PS) and the COPD screening questionnaire (COPD-SQ), incorporating characteristics of the local population in Shanghai, China. The revised questionnaire included only five questions. Each question scored 0–4, with a highest total score of 20. The COPD-PS and COPD-SQ comprised 5 and 7 questions, respectively. Their scoring criteria were not consecutive integers and, thus, not easily counted. The COPD-MH focused on symptoms, and each item was set the same answers for convenience. Screening for COPD was conducted among residents over 40 years old in a community in Shanghai using the three aforementioned questionnaires. Each participant also received spirometry tests. A receiver operator characteristic (ROC) curve was drawn, and the area under the curve (AUC) was calculated to assess the validity of each questionnaire.ResultsA total of 1197 community residents in Minhang District completed the screening. A total of 1023 participants were finally included in analysis with a detected prevalence of 12.4% for COPD. The best cut-off values for the COPD-PS, COPD-SQ, and COPD-MH were 4, 16, and 7 points, respectively. The AUCs for these three questionnaires were >0.5, but the sensitivity of the COPD-MH was higher than those of the COPD-PS and COPD-SQ. The sensitivity of COPD-MH was 80.77% for males and 77.5% for females. The COPD-MH had higher diagnostic efficiency and higher sensitivity with gender-specific cut-off values.ConclusionThe COPD-MH is comparable to and less time-consuming than the existing screening methods for COPD. Gender-related factors affect the optimal cut-off values of the COPD screening questionnaire, and rectifying this can improve the practical screening efficacy.