OBJECTIVE To identify the determinants for enrollment decision in the community-based health insurance program among informal economic sector-engaged societies, North West Ethiopia. METHOD Unmatched case-control study was conducted on 148 cases (member-to-insurance) and 148 controls (not-member-to-insurance program) from September 1 to October 30,2016. To select the villages and households, stratified then simple random sampling method was employed respectively. The data were entered in to Epi-info version 7 and exported to SPSS version 20 for analysis. Descriptive statistics, bi-variable, and multi-variable logistic regression analyses were computed to describe the study objectives and identify the determinants of enrolment decision for the insurance program. Odds ratio at 95% CI was used to describe the association between the independent and outcome variables. RESULTS A total of 296 respondents (148 cases and 148 controls) were employed. The mean age for both cases and controls were 42 ± 11.73 and 40 ± 11.37 years respectively. Majority of respondents were males (87.2% for cases and 79% for controls). Family size between 4 and 6 (AOR = 2.26; 95% CI: 1.04, 4.89), history of illness by household (AOR = 3.24; 95% CI: 1.68, 6.24), perceived amount of membership contribution was medium (AOR = 2.3; 95% CI: 1.23, 4.26), being married (AOR = 6; 95% CI:1.43, 10.18) and trust on program (AOR = 4.79; 95% CI: 2.40, 9.55) were independent determinants for increased enrollment decision in the community-based health insurance. While, being merchant (AOR = 0.07; 95% CI: 0.09, 0.6) decreased the enrollment decision. CONCLUSION Societies' enrollment decision to community-based health insurance program was determined by demographic, social, economic and political factors. Households with large family sizes and farmers in the informal sector should be given maximal attention for intensifying enrollment decision in the insurance program.

中文翻译：

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埃塞俄比亚西北部社区健康保险投保决定的决定因素：病例对照研究。

目的 确定埃塞俄比亚西北部非正规经济部门参与的社会参与社区健康保险计划的决定因素。方法 2016年9月1日至10月30日，对148例病例（会员至保险）和148例对照（非会员至保险项目）进行了非匹配病例对照研究。村和户的选取分别采用分层抽样和简单随机抽样的方法。数据输入 Epi-info 版本 7 并导出到 SPSS 版本 20 进行分析。计算描述性统计、双变量和多变量逻辑回归分析来描述研究目标并确定保险计划注册决策的决定因素。95% CI 的优势比用于描述自变量和结果变量之间的关联。结果 共有 296 名受访者（148 名病例和 148 名对照）参与调查。病例和对照的平均年龄分别为 42 ± 11.73 岁和 40 ± 11.37 岁。大多数受访者为男性（病例组为 87.2%，对照组为 79%）。家庭人数在 4 至 6 人之间（AOR = 2.26；95% CI：1.04，4.89），按家庭划分的疾病史（AOR = 3.24；95% CI：1.68，6.24），感知的会员捐款金额中等（AOR = 2.3） ; 95% CI: 1.23, 4.26)、已婚 (AOR = 6; 95% CI:1.43, 10.18) 和对项目的信任 (AOR = 4.79; 95% CI: 2.40, 9.55) 是增加入学决定的独立决定因素以社区为基础的健康保险。而作为商人（AOR = 0.07；95% CI：0.09，0.6）降低了入学决策。结论 社会对社区健康保险计划的参与决定是由人口、社会、经济和政治因素决定的。应最大限度地关注大户家庭和非正规经济部门的农民，加大参保力度。