Validation of the Simplified Chinese-character Version of the International Physical Activity Questionnaire-Long Form in Urban Community-dwelling Adults: a Cross-sectional Study in Hangzhou, China / 生物医学与环境科学（英文）

<p><b>OBJECTIVE</b>To assess the test-retest reliability and criterion validity of the Simplified Chinese-character version of the International Physical Activity Questionnaire Long form (IPAQ-L) in urban community-dwelling adults in Hanghzou, China.</p><p><b>METHODS</b>A total of 158 eligible participants aged 25-59 years from 6 neighbourhoods in two central districts of Hangzhou completed the IPAQ-L questionnaire twice within a 7-day interval. Half of the subjects wore pedometers during the first 7 days. Test-retest reliability was examined by comparing the first (Day 1) and the second (Day 9) survey of IPAQ-L. Criterion validity was assessed by comparing IPAQ-L with pedometer data.</p><p><b>RESULTS</b>Modest to good test-retest reliability was found with intraclass correlation coefficients of 0.67 for total PA, 0.37 to 0.73 for specific dimensions, and 0.56 to 0.71 for different intensities of PA. Total PA measured by IPAQ-L was moderately correlated with exercise levels (partial r = 0.27, P = 0.020) and walking distance (partial r = 0.31, P = 0.007), which were measured by a pedometer, after adjusting for gender, age, educational attainment and employment status.</p><p><b>CONCLUSION</b>Our results indicate that the IPAQ-L is a reliable and validated measure for assessing physical activity levels in this population and possibly the adult population in other mainland Chinese cities.</p>

A brief introduction of the active surveillance for respiratory illness associated with influenza among pregnant women in Suzhou, China / 上海预防医学

Objective To investigate the incidence rate and assess the disease burden of respiratory illness associated with influenza among pregnant women in Suzhou , China. Methods As a subproject of“The Sino-US Emerging and Re-emerging Infectious Diseases Program”,pregnant women were recruited in-to the cohort since October , 2015 and follow-ups were carried out .Throat swab for influenza was taken for laboratory test when the pregnant women got influenza-like symptoms . Results In total 4438 pregnant women recruit up to 24th July 2016, among which1 539 are early-pregnancy, middle-pregnancy accounted 2 174 and late-pregnancy took 726.Lost to follow-up rate was 5.5%.And 995 cases of throat swabs was taken and tested (80.83%), of which 68 cases were positive (6.8%).The incidence density was 0.08 per hundred person-weeks . Conclusion This prospective cohort study took laboratory test of influenza virus to investigate the incidence rate of respiratory illness associated with influenza among pregnant women can provide credible data about the incidence of influenza .To a certain extent , this study makes up the blank of such research .

Setting of logos on tobacco control information at outlets for retails and restaurants in 12 cities of China / 中华流行病学杂志

Objective To explore the setting of logos on tobacco control information at outlets for retails and restaurants in 12 selected cities of China.Methods For all the shops for retail of tobacco,alcohol,food and restaurants under survey in 333 blocks of 12 cities (Beijing,Tianjin,Shanghai,Qingdao,Hangzhou,Shaoxing,Suzhou,Nantong,Zhenjiang,Chengdu,Xining and Harbin),setting and contents of logos on tobacco control information,inside and outside them were examined.Results 45 700 objectives were included in the study.Among all types of retail shops,the identification rate of tobacco control information at the entrance and inside were 3.6％ and 4.4％,with an overall identification rate as 7.0％.The overall rate at the entrance of all the restaurants was 4.6％ which was larger than the ones at the retail shops.Our result showed that there were differences between cities and types of establishments and higher rates seen in the larger ones.Of all the places that having had placement of information on tobacco control,only 18.5％ of them had put them both inside and outside.Slogans or images on "No Smoking" were the main forms of information but less than 10％ of them would show signs as ‘exclusive non-smoking'.Conclusion Data from our survey showed that the identification rate of tobacco control information was at a low level in 12 cities,and differences were seen between cities,size of establishment,that called for improvement of the existing tobacco control policies in China.