Table 2.

Multivariate logistic regression model estimates for NHIS enrolment

Variable	2014	2015	2016	Pooled (2014–2016
	OR (95% CI)	OR (95% CI)	OR (95% CI)	OR (95% CI)
Member category
Persons below 18 yrs	1.00
Indigent	1.99 (1.72–2.32)***	2.17 (1.89–2.49)***	0.65 (0.38–1.09)	2.48 (2.25–2.73)***
Informal sector employee (18–69 yrs)	0.59 (0.56–0.61)***	0.56 (0.54–0.58)***	0.50 (0.48–0.53)***	0.57 (0.56–0.58)***
LEAP beneficiary	0.52 (0.29–0.92)**	0.49 (0.29–0.87)**	1.59 (1.02–2.49)**	0.72 (0.53–0.97)**
Aged (≥70 yrs)	0.21 (0.19–0.24)***	0.14 (0.13–0.16)***	0.14 (0.12–0.17)***	0.17 (0.16–0.19)***
SSNIT contributor	0.15 (0.14–0.17)***	0.16 (0.14–0.18)***	0.13 (0.11–0.16)***	0.16 (0.15–0.17)***
SSNIT pensioner	0.07 (0.03–0.15)***	0.01 (0.00–0.08)***	0.05 (0.01–0.19)***	0.04 (0.02–0.08)***
Sex
Female	1.00
Male	0.69 (0.66–0.72)***	0.68 (0.66–0.71)***	0.69 (0.65–0.72)***	0.69 (0.68–0.71)***
Member category and sex interaction
Male Indigent	1.27 (1.00–1.59)**	1.73 (1.39–2.17)***	1.17 (0.52–2.61)	1.43 (1.22–1.66)***
Male Informal sector employee (18–69 yrs)	2.09 (1.96–2.23)***	2.53 (2.39–2.69)***	3.39 (3.14–3.67)***	2.49 (2.39–2.58)***
Male LEAP beneficiary	0.39 (0.09–1.59)	1.04 (0.42–2.62)	3.36 (1.49–8.93)**	1.38 (0.81–2.36)
Male Aged (≥70 yrs)	1.22 (1.02–1.46)**	2.09 (1.74–2.52)***	1.84 (1.39–2.43)***	1.61 (1.43–1.80)***
Male SSNIT contributor	1.88 (1.64–2.14)***	2.01 (1.76–2.29)***	2.22 (1.78–2.76)***	2.02 (1.85–2.19)***
Male SSNIT pensioner	2.82 (1.12–7.06)**	10.65 (1.34–84.58)**	4.05 (0.79–20.76)*	4.00 (1.94–8.24)***
_cons	1.76	1.40 (1.37–1.44)***	0.61 90.59_0.63)***	1.21 (1.19–1.23)***
Number of obs	73,541	85,591	56,592	215,724
LR chi2 (16)	4714.72	5483.40	3116.40	13,154.54
Prob > chi2	0.0000	0.0000	0.0000	0.0000
Log likelihood	−48,409.791	−56,568.159	−32,829.792	− 142,090.29
Pseudo R2	0.0464	0.0462	0.0453	0.0442

OR odds ratio; *p < 0.05; **p < 0.01; ***p < 0.001; LEAP Livelihood Empowerment Against Poverty, SSNIT Social Security and National Insurance Trust