• Tongtong Li, Min Lv, Trudy Lei, Jiang Wu, Xinghuo Pang, Ying Deng, and Zheng Xie.
• School of Public Health, Peking University, Beijing, 100191, P.R. China.
• Int J Equity Health. 2016 Mar 8; 15: 45.

BackgroundInfluenza continues to have a major impact on vulnerable populations worldwide, particularly among the elderly (≥ 60 years of age). Vaccination for targeted groups is recommended by the WHO as the most effective way to control influenza infections. Since 2009, the Beijing municipal government has provided influenza vaccination to the elderly at no out-of-pocket cost to reduce influenza threats and improve related health equality. The study aims to evaluate the equality of the policy, and to analyze factors that bring influences to equality.MethodsBased on data from a household survey, concentration index (CI) was calculated to measure the socioeconomic inequality in influenza vaccination. A Logit regression model was used to decompose CI, in which the contribution of each determinant was calculated and the percentages of these contribution were obtained.ResultsFree influenza vaccination at point of use shows significant pro-poor distribution among the elderly in Beijing (CI = -0.115). After the decomposition of CI, the elderly with lower income, higher education, and living in rural areas were more likely to get the influenza vaccination, in which place of residence (contribution percentage = 57 %) held the most contribution of variance.ConclusionsBeijing's free influenza vaccination strategy at point of use could provide the poor elderly with equal opportunities to receive preventive health service, showing a significant pro-poor distribution. The poor elderly, who live in rural areas with high education, benefit most from the policy. Further policy interventions should target the population living in urban areas in order to improve the utilization of public health services and health equality.

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