Communication in Social Networking Sites on Offline and Online Social Support and Life Satisfaction Among University Students: Tie Strength Matters.

PURPOSE: Use of social networking sites (SNS) is highly prevalent among college and university students. Conflicting findings were found on the effects of SNS use on well-being, and very few studies examined the effects of social interaction with strong ties and weak ties on SNS on online and offline social support. The present study examined the association between social interaction with weak ties and strong ties on SNS and life satisfaction among Chinese college and university students. The mediating role of online social support and offline social support was also examined. METHODS: A cross-sectional survey was conducted among 26,547 students from 30 colleges/universities in Shanxi province, China. RESULTS: Social interaction with strong ties on SNS was associated with increased offline social support but had no significant association with online support. Social interaction with weak ties on SNS was associated with higher level of online support, but lower level of offline social support. Both offline and online social support were associated with life satisfaction. The direct effects of social interaction with strong ties and weak ties on life satisfaction were not significant. Mediation analyses supported the full mediating effect of offline social support in the relationship between social interaction with strong ties and life satisfaction, while online and offline support mediated the relationship between social interaction with weak ties and life satisfaction. DISCUSSION: Social interaction with strong ties and weak ties on the SNS was associated with life satisfaction through different pathways. Interventions to maximize the benefits of SNS use are warranted.

Prevalence and factors associated with hepatitis C among pregnant women in China: a cross-sectional study.

Pregnant women infected with HCV should be given attention due to their special physiological stage and the effect on offspring health. To examine the prevalence of HCV infection among pregnant women in part of China and explore relevant factors during pregnancy, a cross-sectional study was conducted in four maternal and children health care institutions (MCHC) in Guangdong, Hunan and Chongqing. Pregnant women who were delivered, induced or spontaneous abortion were included and relevant information was collected through the Hospital Information System. Results showed that the prevalence of HCV among pregnant women in four MCHCs was 0.11% (95% CI 0.09-0.13%). Age, occupations, regions, syphilis-infection, intrahepatic cholestasis of pregnancy (ICP), and placenta previa were significant factors (all P < 0.05). Age and syphilis-infection were positively correlated with HCV infection (Z = 3.41, P = 0.0006; OR = 18.16, 95% CI 9.34-35.29). HCV and HBV infection were risk factors of ICP (OR = 4.18, 95% CI 2.18-8.04; OR = 2.59, 95% CI 2.31-2.89). Our study indicates that the prevalence of HCV among pregnant women in the three provinces(city) was low compared with the general population in China. Older age and syphilis-infection increased the risk of HCV infection during pregnancy. HCV infection was a risk factor of ICP. Generally, we need keep a watchful eye on HCV infection and relevant factors mentioned above during pregnancy in clinic, especially those also infected with syphilis. HCV testing based on risk factors is recommended in antenatal care and obstetrics.