Objective To determine the situation of contraceptive use and impact factors among reproductive-age women seeking abortion in Kunming which was in the southwest of China in order to provide information for improving contraceptive use. Methods A hospital-based study was conducted among 397 women of reproductive age, seeking abortion in hospitals of different levels in Kunming from June 2011 to December 2011. They were face to face interviewed by the trained investigators with the questionnaires. Results Among 397 women, 229 cases (57.7%) had experienced induced abortion. Abortion accounted for 61.7% of married women, and unmarried accounted for 39.3%. About 36.3%never used any contraceptives, and only 21.4%of respondents used contraceptives at every intercourse. The main contraceptive before this pregnancy was condom (68.9%) . The use of contraceptives was mainly decided by couple (73.4%) . Multivariate logistic regression analysis indicated that respondents' age, educational level and access to contraceptives in hospital were associated with the use of contraceptive. Conclusion Premarital pregnancy and low rate of contraception are the main reason for induced abortion. Fewer reproductive-age women seeking abortion use contraceptives. It is necessary to increase their awareness of contraception and abortion related knowledge, provide feasible contraceptive to enable women to avoid unwilling pregnancy. Further more, it is important to promote male involvement in contraception.

Objective:To explore the current status of HBV infection before pregnancy among rural childbearing age people in Yunnan province, find out the population at high risk and areas with high incidence and provide evidence for promoting pre-pregnancy aristogenesis and medical interventions for prevention of HBV infection.Methods:The subjects in the study were rural childbearing age people aged 18-49 who received the national free pre pregnancy eugenic health examination in Yunnan province during 2013-2017. Descriptive analysis was conducted for HBsAg positive rate and its difference among various characteristics. The SPSS 22.0 software was used for statistical analysis.Results:A total of 2 180 841 rural childbearing age people were surveyed, the HBsAg positive rate before pregnancy was 3.13%(68 314/2 180 841) in Yunnan. And the HBsAg positive rate was 3.56% (37 694/1 057 376) in men, higher than that in women (2.73%, 30 620/1 123 465). The HBsAg positive rate was highest in age group 41-49 years (3.77%, 3 126/82 931). The HBsAg positive rate was higher in minority ethnic group (3.77%, 27 974/742 518) than in Han ethnicity group (2.81%, 40 024/1 425 870). Moreover, the highest HBsAg positive rate of was 8.20%(851/10 378) in Yao ethnic group. The people with education level of primary education had the highest HBsAg positive rate (3.97%, 17 294/435 219). The HBsAg positive rate was highest in Xishuangbanna Dai autonomous prefecture (6.65%, 3 875/58 232) in Yunnan. Moreover, the HBsAg positive population in severe poor area (3.32%, 19 755/595 665) was higher than those in less poor area (3.17%, 29 750/939 101) or normal areas (2.91%, 18 809/646 075). There was significant difference in HBsAg positive rate among populations in different age groups, ethnic groups, education level groups, areas and economic level groups ( P<0.001). Conclusions:The HBsAg positive rate in rural childbearing age people in Yunnan was related to multi factors, including sex, age, ethnic group, education level, area and economic development level. The HBsAg positive rate was higher in men, older age and lower education level, minority ethnic group (especially in Yao ethnic group), from Xishuangbanna prefecture and the poor living conditions in childbearing age population.

Objective:To determine the prevalence, epidemiological characteristics, and related factors of syphilis infection among rural childbearing age people to promote medical interventions on pre-pregnancy aristogenesis and syphilis infection in Yunnan province.Methods:The subjects in this study were 18-49-year-old rural couples of childbearing age from the National Free Preconception Health Examination Project in Yunnan province during 2013-2017. The descriptive study was carried out to determine the positive rate of Treponema pallidum specific antibody (TPsAb) and related sociodemographic characteristics. Results:The overall positive rate of TPsAb was 0.38% (8 204/2 160 455) in 2 160 455 rural childbearing age people in Yunnan. The positive rate of TPsAb was 0.39% (4 019/1 040 981) in men,higher than that in women (0.37%,4 185/1 119 474). The positive rate of TPsAb was highest in the age group 45-49 years (0.70%,158/22 511). The positive rate of TP antibody in the minority ethnic groups and Han ethnic groups appeared the same (0.38%). However,the highest positive rate of TPsAb was 0.77% (461/60 153) in Hani ethnic group among all the 17 minority ethnic groups. People with education level of primary education had the highest anti-TP positive rate (0.54%,2 327/431 275). The positive rate of TPsAb appeared the highest in Zhaotong (0.73%, 2 049/281 614) area among all the 16 prefectures of the province. The positive rate of TPsAb in the population from the impoverished regions (0.50%,2 963/590 039) was higher than in other disadvantaged areas (0.34%, 3 115/929 368) or areas with average income (0.33%,2 126/641 048). Significant differences appeared in the positive rate of TPsAb among populations of different ages, ethnic, education level, and economic level groups (trend χ2 test, P<0.001). Conclusions:The positive rate of TP antibody in rural childbearing age people in Yunnan was related to multi factors,including sex,age,ethnic group,education level,area, residence, and local economic situation. The positive rate of TPsAb was higher in men than in women. And people with elder age, lower education level, being Hani or Lahu ethnic group, and Zhaotong areas had higher TPsAb positive rates and higher syphilis infection risk.