Table 3.
Index group means and matching estimator results for days plucking tea and non-plucking days for women
| Duration on ART | N | Days Plucking (IG Mean)\1 |
Estimated Mean Difference (IG – CG)\1 |
P > |z|\2 | 95% CI LL\2 | 95% CI UL\2 | Days Non-Plucking Tasks (IG Mean) |
Estimated Mean Difference (IG – CG)\1 |
P > |z|\2 | 95% CI LL\2 | 95% CI UL/2 |
| -24 | 56 | 15.46 | -1.75 | 0.24 | -4.68 | 1.19 | 5.09 | 1.48 | 0.20 | -0.79 | 3.75 |
| -23 | 56 | 15.61 | -1.31 | 0.34 | -3.99 | 1.37 | 4.50 | 0.17 | 0.87 | -1.81 | 2.15 |
| -22 | 56 | 15.59 | -1.35 | 0.36 | -4.27 | 1.57 | 4.43 | 0.94 | 0.43 | -1.39 | 3.27 |
| -21 | 56 | 16.68 | -1.17 | 0.44 | -4.15 | 1.82 | 2.54 | -0.77 | 0.46 | -2.77 | 1.24 |
| -20 | 56 | 16.93 | -0.49 | 0.72 | -3.18 | 2.21 | 3.59 | -0.68 | 0.51 | -2.69 | 1.32 |
| -19 | 56 | 14.07 | -2.77 | 0.05 | -5.56 | 0.03 | 4.27 | 0.03 | 0.98 | -2.22 | 2.27 |
| -18 | 56 | 15.52 | -1.84 | 0.20 | -4.67 | 0.98 | 6.02 | 2.01 | 0.10 | -0.35 | 4.37 |
| -17 | 56 | 17.25 | -0.06 | 0.97 | -2.66 | 2.55 | 3.68 | 0.27 | 0.78 | -1.63 | 2.18 |
| -16 | 56 | 17.48 | 0.18 | 0.88 | -2.26 | 2.63 | 4.84 | 1.03 | 0.34 | -1.09 | 3.15 |
| -15 | 56 | 16.77 | -0.11 | 0.94 | -2.72 | 2.50 | 3.96 | 0.07 | 0.95 | -2.05 | 2.19 |
| -14 | 56 | 14.16 | -3.49 | 0.01 | -6.11 | -0.86 | 5.32 | 1.75 | 0.12 | -0.46 | 3.96 |
| -13 | 56 | 16.88 | -0.44 | 0.75 | -3.11 | 2.23 | 5.30 | 1.48 | 0.21 | -0.85 | 3.80 |
| -12 | 56 | 16.13 | -1.65 | 0.24 | -4.41 | 1.11 | 4.21 | 1.21 | 0.28 | -0.96 | 3.38 |
| -11 | 56 | 16.91 | -1.79 | 0.21 | -4.60 | 1.02 | 3.63 | 0.85 | 0.43 | -1.28 | 2.98 |
| -10 | 56 | 16.48 | -2.26 | 0.11 | -5.00 | 0.48 | 3.95 | 1.26 | 0.26 | -0.92 | 3.43 |
| -9 | 56 | 14.23 | -4.82 | 0.00 | -7.69 | -1.95 | 4.63 | 2.12 | 0.08 | -0.25 | 4.50 |
| -8 | 56 | 14.21 | -5.39 | 0.00 | -8.16 | -2.62 | 5.54 | 2.66 | 0.02 | 0.41 | 4.91 |
| -7 | 56 | 14.07 | -4.68 | 0.00 | -7.72 | -1.64 | 4.39 | 2.19 | 0.04 | 0.06 | 4.32 |
| -6 | 56 | 14.23 | -4.99 | 0.00 | -7.72 | -2.27 | 4.07 | 1.36 | 0.18 | -0.60 | 3.32 |
| -5 | 56 | 13.95 | -5.21 | 0.00 | -8.09 | -2.33 | 5.18 | 2.55 | 0.02 | 0.45 | 4.65 |
| -4 | 56 | 13.98 | -4.77 | 0.00 | -7.40 | -2.15 | 5.75 | 2.87 | 0.01 | 0.65 | 5.09 |
| -3 | 56 | 13.89 | -3.32 | 0.03 | -6.24 | -0.40 | 4.80 | 1.96 | 0.07 | -0.19 | 4.11 |
| -2 | 56 | 14.36 | -3.37 | 0.02 | -6.20 | -0.54 | 4.39 | 2.34 | 0.02 | 0.31 | 4.38 |
| -1 | 56 | 14.20 | -4.61 | 0.00 | -7.21 | -2.01 | 3.88 | 1.69 | 0.08 | -0.21 | 3.59 |
| 0 | 56 | 6.00 | -13.55 | 0.00 | -15.58 | -11.53 | 4.05 | 2.04 | 0.02 | 0.34 | 3.75 |
| 1 | 56 | 7.45 | -10.90 | 0.00 | -13.50 | -8.30 | 4.70 | 2.60 | 0.01 | 0.78 | 4.42 |
| 2 | 56 | 9.27 | -8.14 | 0.00 | -10.96 | -5.32 | 6.70 | 3.98 | 0.00 | 1.60 | 6.35 |
| 3/3 | 55 | 9.73 | -8.84 | 0.00 | -11.36 | -6.32 | 6.38 | 3.09 | 0.01 | 0.82 | 5.36 |
| 4 | 54 | 11.65 | -6.63 | 0.00 | -9.45 | -3.82 | 6.63 | 3.56 | 0.00 | 1.31 | 5.80 |
| 5 | 54 | 10.44 | -6.35 | 0.00 | -9.24 | -3.45 | 6.59 | 3.95 | 0.00 | 1.94 | 5.96 |
| 6 | 54 | 11.83 | -5.93 | 0.00 | -8.60 | -3.25 | 6.43 | 3.66 | 0.00 | 1.52 | 5.81 |
| 7 | 54 | 13.19 | -5.34 | 0.00 | -7.96 | -2.73 | 5.91 | 3.89 | 0.00 | 1.70 | 6.08 |
| 8 | 54 | 12.65 | -6.14 | 0.00 | -8.59 | -3.69 | 5.93 | 4.17 | 0.00 | 2.21 | 6.13 |
| 9 | 54 | 12.43 | -5.77 | 0.00 | -8.42 | -3.12 | 6.22 | 4.44 | 0.00 | 2.34 | 6.54 |
| 10 | 54 | 10.93 | -6.62 | 0.00 | -9.41 | -3.84 | 6.91 | 4.19 | 0.00 | 2.00 | 6.38 |
| 11 | 54 | 13.33 | -4.99 | 0.00 | -7.65 | -2.33 | 5.54 | 2.98 | 0.01 | 0.92 | 5.04 |
| 12 | 54 | 12.85 | -5.69 | 0.00 | -8.43 | -2.95 | 5.61 | 2.68 | 0.02 | 0.49 | 4.86 |
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/ 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% confidence interval for the estimated average treatment effect on the treated.
3/ One index worker retired at the end of month 2 and month 3.