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. 2021 Nov 24;21:2159. doi: 10.1186/s12889-021-12224-3

Table 4.

Kibera estimated intent-to-treat effects at two-year follow-up, by study arm

(1) (2) (3) (4) (5) (6) (7)
V-Only two-year follow-up
Mean
VE
Estimate
VEH
Estimate
VEHW
Estimate
VEH vs
VE
(3)–(2)
VEHW vs
VE
(4)–(2)
VEHW vs
VEH
(4)–(3)
Violence Prevention
 Experienced violence by a male in the past year (=1) 0.422 − 0.088** − 0.059* − 0.042 0.028 0.046 0.018
95% CI [− 0.14, − 0.03] [− 0.12, 0.00] [− 0.10, 0.02] [− 0.03, 0.08] [− 0.01, 0.10] [− 0.04, 0.07]
 Gender equitable attitudes z-scorea 0.000 − 0.036 0.054 0.078 0.090 0.114* 0.024
95% CI [−0.15, 0.08] [− 0.07, 0.17] [− 0.04, 0.19] [− 0.02, 0.20] [0.00, 0.23] [− 0.09, 0.14]
 Positive gender schooling attitudes z-score 0.211 −0.024 − 0.091† − 0.137* − 0.067 −0.113* − 0.046
95% CI [−0.12, 0.07] [−0.19, 0.01] [− 0.24, − 0.03] [− 0.17, 0.03] [− 0.22, − 0.01] [− 0.15, 0.06]
Education
 Grade attainment 7.501 0.052† 0.048† 0.067* − 0.003 0.016 0.019
95% CI [0.00, 0.11] [−0.01, 0.10] [0.01, 0.12] [−0.05, 0.05] [−0.03, 0.06] [− 0.03, 0.07]
 Primary school complete (=1) 0.517 0.020 0.017 0.032 −0.004 0.011 0.015
95% CI [−0.03, 0.07] [− 0.03, 0.07] [− 0.02, 0.08] [− 0.05, 0.05] [−0.04, 0.06] [− 0.03, 0.06]
 Enrolled in current school year (=1) 0.959 0.005 0.011 0.020† 0.006 0.015 0.010
95% CI [−0.02, 0.03] [−0.01, 0.03] [0.00, 0.04] [−0.01, 0.03] [0.00, 0.03] [−0.01, 0.03]
 Conditional primary school complete (=1)b [n = 1104] 0.887 0.037 0.020 0.070** −0.016 0.033 0.050*
95% CI [−0.01, 0.09] [−0.03, 0.07] [0.02, 0.12] [−0.06, 0.03] [− 0.01, 0.07] [0.01, 0.09]
 Conditional transition to secondary school (=1)c [n = 1131] 0.836 0.036 0.035 0.071* −0.001 0.036 0.037
95% CI [−0.02, 0.10] [−0.02, 0.09] [0.01, 0.13] [−0.06, 0.05] [− 0.02, 0.09] [− 0.01, 0.09]
Health
 Knows most fertile period during menstrual cycle (=1) 0.087 0.016 0.019 0.022 0.003 0.006 0.003
95% CI [−0.02, 0.05] [−0.02, 0.05] [− 0.01, 0.06] [− 0.03, 0.04] [−0.03, 0.04] [− 0.03, 0.04]
 Knows method of modern contraceptiona (=1) [n = 2175] 0.555 −0.007 0.130*** 0.119*** 0.137*** 0.125*** −0.011
95% CI [− 0.06, 0.05] [0.07, 0.19] [0.06, 0.18] [0.08, 0.19] [0.07, 0.18] [−0.06, 0.04]
 SRH knowledge z-scorea [n = 1948] 0.000 0.016 0.213** 0.158* 0.197** 0.142* −0.055
95% CI [−0.11, 0.14] [0.09, 0.34] [0.03, 0.29] [0.08, 0.31] [0.02, 0.26] [−0.17, 0.07]
 General self-efficacy z-score 0.325 0.152** 0.030 0.055 −0.122* −0.097* 0.025
95% CI [0.06, 0.25] [−0.07, 0.13] [−0.05, 0.16] [− 0.22, − 0.03] [−0.19, 0.00] [− 0.08, 0.12]
 Condom use self-efficacy z-scorea [n = 1777] 0.000 0.038 0.178** 0.124† 0.140* 0.086 −0.054
95% CI [−0.10, 0.17] [0.05, 0.30] [−0.01, 0.25] [0.02, 0.26] [−0.04, 0.21] [−0.17, 0.06]
Wealth creation
 Financial literacy z-score −0.085 0.014 0.045 0.381*** 0.030 0.366*** 0.336***
95% CI [−0.11, 0.13] [−0.07, 0.16] [0.26, 0.50] [−0.09, 0.15] [0.25, 0.48] [0.22, 0.45]
 Saved money in the past 6 months (=1) 0.448 0.000 0.017 0.202*** 0.017 0.202*** 0.185***
95% CI [−0.06, 0.06] [− 0.04, 0.08] [0.14, 0.26] [− 0.04, 0.07] [0.15, 0.26] [0.13, 0.24]
Household-level outcomes
 Expects girl to complete secondary school (=1) [n = 2193] 0.994 0.002 −0.001 0.004 −0.003 0.002 0.005
95% CI [−0.01, 0.01] [−0.01, 0.01] [0.00, 0.01] [− 0.01, 0.01] [0.00, 0.01] [0.00, 0.01]
 Household wealth quintile [n = 2236] 2.823 0.101 0.123 0.105 0.022 0.004 −0.019
95% CI [−0.06, 0.26] [−0.03, 0.28] [− 0.06, 0.27] [− 0.13, 0.18] [− 0.15, 0.16] [− 0.17, 0.14]
Summary index z-scores
Violence prevention outcomes summary index z-scored 0.000 0.066 0.037 −0.004 − 0.029 − 0.070 −0.040
95% CI [−0.05, 0.19] [−0.08, 0.16] [− 0.13, 0.12] [− 0.15, 0.09] [− 0.19, 0.05] [− 0.16, 0.08]
Education outcomes summary index z-score (grade, primary, enroll) 0.000 0.062 0.082 0.123* 0.020 0.061 0.041
95% CI [−0.04, 0.17] [− 0.02, 0.18] [0.03, 0.22] [−0.07, 0.12] [− 0.03, 0.15] [− 0.05, 0.13]
Health outcomes summary index z-score 0.000 0.113† 0.306*** 0.279*** 0.193** 0.167** −0.026
95% CI [0.00, 0.23] [0.19, 0.42] [0.16, 0.40] [0.08, 0.31] [0.05, 0.28] [−0.14, 0.09]
Wealth creation outcomes summary index z-score 0.000 0.015 0.056 0.517*** 0.041 0.502*** 0.461***
95% CI [−0.10, 0.13] [− 0.06, 0.17] [0.40, 0.63] [−0.07, 0.16] [0.39, 0.62] [0.35, 0.57]

The table reports two-year follow-up means for V-only in column 1, the OLS estimated ITT effect for each study arm relative to V-only in columns 2–4 and differences in the estimated ITT effects across study arms in columns 5–7. For binary outcomes (=1) these are linear probability models. Column 5 compares the estimates for VEH to VE, column 6 compares VEHW to VE, and column 7 compares VEHW to VEH. For example, the estimate in column 7 for ‘Experienced violence by a male in the past year’ (0.018) is the difference between the estimate for VEHW (− 0.042) in column 4 and the estimate for VEH (− 0.059) in column 3. Minor differences in the reported differentials compared to the estimates presented in columns 2–4 are due to rounding. Numbers in square brackets indicate 95% confidence intervals. Regressions were estimated with robust standard errors and included controls for age and the outcome measured at baseline unless otherwise noted. N = 2190; sample is smaller for some individual outcomes due to missing data as indicated

*** p < 0.001, ** p < 0.01, * p < 0.05, † p < 0.1

a No baseline control for outcome variable available

b Among girls who had completed grade 6 but had not yet completed grade 8 at baseline

c Among girls who had completed grade 6 but had not yet enrolled in secondary school at baseline

d Violence prevention variable is reverse coded prior to inclusion in summary variable