Table 3 Observed handwashing behavior sat baseline and endline, stratified by maternal education and wealth quintiles
Baseline characteristics | Baseline | Endline | Difference in difference (DID) | 95% CI | Overall treatment effect | 95% CI | Impact of modifier on the treatment effect on outcomesb | ||
|---|---|---|---|---|---|---|---|---|---|
Control n (%) | Interventiona n (%) | Control n (%) | Interventiona n (%) | ||||||
Indicator 1: Observed mother’s hand cleanliness (both hands) | 11% | 6, 15 |  | ||||||
 Education of mother | |||||||||
  Uneducated | 43 (21) | 50 (16) | 39 (19) | 98 (31) | 17% | 7, 27 |  |  |  |
  Some primary education | 103 (23) | 154 (23) | 115 (26) | 228 (34) | 8% | 1, 16 |  |  | 0.0034 |
  Above primary | 237 (32) | 350 (32) | 271 (37) | 514 (47) | 10% | 4, 17 |  |  |  |
 Wealth index | |||||||||
  Lowest quintile (Q1) | 63 (23) | 86 (20.6) | 52 (19) | 137 (33) | 16% | 7, 25 |  |  |  |
  2ndquintile (Q2) | 65 (23) | 91 (22) | 71 (23) | 145 (36) | 11% | 2, 20 |  |  |  |
  3rdquintile (Q3) | 63 (24) | 106 (24) | 75 (29) | 188 (42) | 14% | 4, 23 |  |  | 0.0041 |
  4thquintile (Q4) | 84 (30) | 111 (27) | 102 (37) | 161 (39) | 5% | −5, 16 |  |  |  |
  Highest quintile (Q5) | 108 (37) | 160 (42) | 125 (43) | 209 (54) | 7% | −4, 17 |  |  |  |
Indicator 2: Observed presence of water and soap in household handwashing station (s) | 69% | 61, 74 | Â | ||||||
 Education of mother |  |  |  | ||||||
  Uneducated | 27 (13) | 41 (13) | 20 (12) | 242 (96) | 84% | 75, 90 |  |  |  |
  Some primary education | 75 (17) | 97 (15) | 77 (21) | 537 (98) | 79% | 75, 85 |  |  | < 0.0001 |
  Above primary | 208 (28) | 316 (29) | 235 (39) | 919 (98) | 58% | 50, 65 |  |  |  |
 Wealth index |  |  |  | ||||||
  Lowest quintile (Q1) | 18 (7) | 33 (8) | 25 (11) | 309 (95) | 82% | 75, 90 |  |  |  |
  2ndquintile (Q2) | 35 (12) | 49 (12) | 37 (16) | 336 (98) | 83% | 75, 90 |  |  |  |
  3rdquintile (Q3) | 49 (19) | 72 (16) | 41 (19) | 371 (97) | 81% | 75, 90 |  |  | < 0.0001 |
  4thquintile (Q4) | 69 (25) | 109 (26) | 90 (38) | 351 (98) | 58% | 50, 70 |  |  |  |
  Highest quintile (Q5) | 139 (48) | 191 (50) | 139 (58) | 331 (99) | 39% | 30, 50 |  |  |  |