The research was conducted by Hai Fang and team from Peking University and published in Journal of global health. This study provides a comprehensive understanding of the strong relationship between combination vaccine receipt and vaccination completion outcomes. Facing the suboptimal Hib vaccination rate in China, the use of combination vaccines could help increase vaccination compliance, and appropriate government actions to reduce out-of-pocket burden of immunization are encouraged to address inequities in vaccine choices.
Independent and joint associations of sex and birth order with non‑national immunization program vaccine coverage among Chinese children: a cross-sectional analysis
This research conducted by Prof. Xiaolin Xu and team from Zhejiang University, was published in the International Journal for Equity in Health. Based on a 2022 survey in Zhejiang and Henan provinces, the study analyzed the independent and joint associations of sex and birth order with non-National Immunization Program (non-NIP) vaccine coverage among Chinese children aged 1–6. The results showed that birth order was an important factor influencing vaccination, with the lowest coverage observed among later-born girls, particularly third or later-born daughters.