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Table 4 Index group means and matching estimator results for kilograms harvested when plucking for men and women

From: Do the socioeconomic impacts of antiretroviral therapy vary by gender? A longitudinal study of Kenyan agricultural worker employment outcomes

Duration on ART N
(men)
Kilograms Harvested (IG Mean)\1 Estimated Mean Difference
(IG – CG)\1
P > |z|\2 95% CI LL\2 95% CI UL\2 N
(women)
Kilograms Harvested (IG Mean) Estimated Mean Difference
(IG – CG)\1
P > |z|\2 95% CI LL\2 95% CI UL/2
-24 35 40.39 0.92 0.79 -5.98 7.83 47 34.24 -3.93 0.20 -9.96 2.10
-23 35 37.30 -1.26 0.70 -7.70 5.19 48 35.16 -5.72 0.08 -12.11 0.66
-22 34 37.36 -0.17 0.96 -6.51 6.17 51 36.35 -5.57 0.12 -12.52 1.38
-21 32 38.26 0.29 0.91 -4.92 5.50 54 35.07 -6.24 0.04 -12.24 -0.23
-20 32 41.21 -5.57 0.29 -15.96 4.82 54 31.99 -6.87 0.04 -13.36 -0.37
-19 35 45.71 -2.58 0.72 -16.74 11.58 50 33.79 -4.99 0.11 -11.10 1.12
-18 33 37.26 -1.69 0.59 -7.89 4.50 49 34.31 -5.37 0.04 -10.54 -0.20
-17 38 44.48 0.35 0.94 -8.02 8.72 53 32.76 -2.57 0.32 -7.64 2.51
-16 35 41.63 -1.94 0.59 -8.91 5.02 50 34.60 -3.53 0.19 -8.75 1.69
-15 36 38.71 -0.40 0.90 -6.51 5.71 50 29.38 -6.05 0.03 -11.63 -0.47
-14 36 41.54 -2.65 0.58 -11.97 6.67 49 28.19 -6.69 0.01 -11.53 -1.85
-13 36 35.22 -3.20 0.35 -9.95 3.55 49 31.79 -6.50 0.03 -12.38 -0.61
-12 36 43.47 0.67 0.88 -7.92 9.25 52 31.26 -5.36 0.10 -11.81 1.09
-11 36 44.35 4.05 0.30 -3.64 11.74 48 33.75 -1.86 0.53 -7.66 3.94
-10 36 41.84 -2.11 0.58 -9.47 5.26 49 31.94 -6.24 0.03 -11.77 -0.70
-9 34 40.91 -3.78 0.27 -10.48 2.92 45 33.26 -5.32 0.04 -10.32 -0.32
-8 36 35.68 -9.93 0.01 -16.92 -2.93 46 34.28 -6.05 0.03 -11.38 -0.72
-7 36 41.06 -8.36 0.06 -17.07 0.34 42 36.30 -4.10 0.14 -9.57 1.37
-6 36 43.75 -3.34 0.59 -15.33 8.65 42 34.17 -5.30 0.10 -11.64 1.04
-5 33 35.72 -5.35 0.16 -12.85 2.15 44 30.06 -6.72 0.07 -13.99 0.56
-4 33 42.27 2.35 0.60 -6.54 11.24 45 28.19 -8.28 0.02 -15.01 -1.55
-3 32 36.73 -3.78 0.28 -10.69 3.13 46 29.53 -10.96 0.00 -18.17 -3.74
-2 34 30.76 -11.21 0.00 -18.77 -3.65 47 33.40 -4.67 0.17 -11.29 1.95
-1 31 38.56 -6.47 0.11 -14.50 1.55 46 29.78 -8.80 0.01 -15.39 -2.21
0 29 37.29 -4.92 0.26 -13.49 3.65 39 27.59 -5.96 0.06 -12.23 0.31
1 24 35.71 -6.78 0.05 -13.43 -0.13 31 29.15 -5.08 0.12 -11.43 1.27
2 27 36.12 -10.40 0.01 -18.69 -2.11 33 26.74 -9.72 0.01 -16.42 -3.01
3 32 37.31 -1.14 0.73 -7.73 5.44 34 26.94 -7.10 0.00 -11.87 -2.34
4 34 36.96 -0.42 0.90 -6.87 6.03 39 29.19 -6.85 0.02 -12.39 -1.32
5 33 34.67 -6.59 0.03 -12.44 -0.74 40 33.13 -3.15 0.49 -11.99 5.70
6 36 37.20 -3.81 0.16 -9.07 1.46 43 31.30 -5.01 0.08 -10.62 0.60
7 37 36.47 -5.99 0.05 -11.98 -0.01 45 31.03 -4.32 0.07 -9.04 0.40
8 37 38.83 -1.91 0.65 -10.04 6.22 44 31.98 -6.10 0.01 -10.50 -1.69
9 37 35.52 -3.18 0.25 -8.56 2.20 39 35.62 0.87 0.75 -4.40 6.13
10 37 34.03 -3.00 0.22 -7.78 1.78 40 33.01 -3.81 0.21 -9.79 2.17
11 36 39.44 0.33 0.92 -6.37 7.04 38 32.19 -5.17 0.02 -9.54 -0.80
12 33 34.03 -2.04 0.42 -6.97 2.89 42 28.76 -5.49 0.02 -10.06 -0.92
  1. 1/ / IG = index group, and CG = matching comparison group. The estimated mean difference is the bias-adjusted sample average treatment effect on the treated using nearest the neighbor matching estimator nnmatch in Stata 10, with 4 comparison workers matched to each index worker based on age, months of work experience, and gang.
  2. 2/ p-value for a z-test that mean difference = 0, rounded to two digits. 95% CI LL and UL are the lower and upper levels of the 95%