Table 6.
Effects of SELEVER and SELEVER + WASH interventions on index child morbidity symptoms and anthropometry indicators, SELEVER Trial and WASH‐substudy populations.
| Endline 2020 | Lean season 2019 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| n | Mean (SD) | Main effect (SE) | p Value | Adjusted main effect (SE) | p Value | n | Mean (SD) | Main effect (SE) | p Value | Adjusted main effect | p Value | |
| Morbidity (0−6) | ||||||||||||
| Trial | ||||||||||||
| Control | 724 | 0.17 (0.46) | ||||||||||
| SELEVER | 709 | 0.16 (0.49) | −0.06 (0.22) | 0.789 | 0.12 (0.19) | 0.533 | ||||||
| WASH substudy | ||||||||||||
| Control | 362 | 0.13 (0.42) | 286 | 0.33 (0.68) | ||||||||
| SELEVER | 370 | 0.19 (0.55) | 0.13 (0.26) | 0.624 | 0.23 (0.25) | 0.356 | 297 | 0.35 (0.74) | 0.04 (0.21) | 0.836 | 0.05 (0.29) | 0.862 |
| SELEVER + WASH | 339 | 0.13 (0.42) | −0.31 (0.25) | 0.203 | −0.12 (0.20) | 0.560 | 272 | 0.34 (0.72) | 0.01 (0.21) | 0.966 | −0.33 (0.28) | 0.236 |
| Test of equality | 0.118 | 0.179 | 0.887 | 0.252 | ||||||||
| Diarrhoea | ||||||||||||
| Trial | ||||||||||||
| Control | 724 | 0.01 (0.10) | ||||||||||
| SELEVER | 709 | 0.01 (0.11) | 0.00 (0.01) | 0.873 | 0.00 (0.01) | 0.608 | ||||||
| WASH substudy | ||||||||||||
| Control | 362 | 0.01 (0.12) | 286 | 0.01 (0.08) | ||||||||
| SELEVER | 370 | 0.01 (0.1) | 0.00 (0.01) | 0.978 | 0.00 (0.01) | 0.733 | 297 | 0.02 (0.14) | 0.01 (0.01) | 0.276 | 0.01 (0.02) | 0.494 |
| SELEVER + WASH | 339 | 0.01 (0.11) | 0.00 (0.01) | 0.779 | 0.00 (0.01) | 0.660 | 272 | 0.06 (0.23) | 0.05 (0.02) | 0.002 | 0.06 (0.02) | 0.017 |
| Test of equality | 0.787 | 0.872 | 0.046 | 0.141 | ||||||||
| Height | ||||||||||||
| Trial | ||||||||||||
| Control | 730 | 114.42 (6.60) | ||||||||||
| SELEVER | 721 | 114.74 (6.72) | −0.41 (0.37) | 0.266 | −0.06 (0.30) | 0.845 | ||||||
| WASH substudy | ||||||||||||
| Control | 364 | 113.62 (6.53) | 304 | 109.16 (6.58) | ||||||||
| SELEVER | 376 | 115.11 (6.85) | 0.18 (0.41) | 0.664 | 0.34 (0.31) | 0.285 | 304 | 110.13 (7.06) | 0.21 (0.30) | 0.488 | 0.18 (0.34) | 0.604 |
| SELEVER + WASH | 345 | 114.33 (6.56) | −1.05 (0.40) | 0.011 | −0.54 (0.28) | 0.061 | 276 | 109.80 (6.75) | 0.00 (0.30) | 0.991 | 0.15 (0.40) | 0.716 |
| Test of equality | 0.008 | 0.005 | 0.541 | 0.949 | ||||||||
| Weight | ||||||||||||
| Trial | ||||||||||||
| Control | 729 | 18.96 (2.51) | ||||||||||
| SELEVER | 719 | 18.99 (2.72) | −0.04 (0.14) | 0.771 | 0.11 (0.11) | 0.304 | ||||||
| WASH substudy | ||||||||||||
| Control | 364 | 18.69 (2.47) | 304 | 17.40 (2.33) | ||||||||
| SELEVER | 374 | 19.15 (2.8) | 0.14 (0.16) | 0.407 | 0.20 (0.13) | 0.125 | 304 | 17.64 (2.56) | −0.15 (0.09) | 0.102 | −0.20 (0.18) | 0.278 |
| SELEVER + WASH | 345 | 18.8 (2.63) | −0.23 (0.16) | 0.148 | 0.00 (0.12) | 0.999 | 275 | 17.42 (2.51) | −0.24 (0.11) | 0.038 | −0.16 (0.21) | 0.449 |
| Test of equality | 0.060 | 0.162 | 0.407 | 0.823 | ||||||||
| HAZ | ||||||||||||
| Trial | ||||||||||||
| Control | 730 | −0.79 (0.98) | ||||||||||
| SELEVER | 721 | −0.75 (0.93) | −0.03 (0.06) | 0.586 | −0.01 (0.06) | 0.914 | ||||||
| WASH substudy | ||||||||||||
| Control | 364 | −0.82 (0.95) | 304 | −0.95 (0.94) | ||||||||
| SELEVER | 376 | −0.72 (0.92) | 0.06 (0.07) | 0.436 | 0.06 (0.07) | 0.354 | 304 | −0.88 (0.94) | 0.05 (0.06) | 0.402 | 0.04 (0.06) | 0.546 |
| SELEVER + WASH | 345 | −0.78 (0.95) | −0.13 (0.06) | 0.042 | −0.09 (0.06) | 0.111 | 276 | −0.90 (1.00) | 0.00 (0.06) | 0.937 | 0.04 (0.08) | 0.649 |
| Test of equality | 0.013 | 0.019 | 0.434 | 0.986 | ||||||||
| BMIZ | ||||||||||||
| Trial | ||||||||||||
| Control | 729 | −0.74 (0.79) | ||||||||||
| SELEVER | 719 | −0.81 (0.84) | 0.03 (0.05) | 0.572 | 0.04 (0.05) | 0.37 | ||||||
| WASH substudy | ||||||||||||
| Control | 364 | −0.74 (0.84) | 304 | −0.60 (0.79) | ||||||||
| SELEVER | 374 | −0.78 (0.82) | 0.02 (0.06) | 0.716 | 0.03 (0.06) | 0.591 | 304 | −0.65 (0.86) | −0.09 (0.06) | 0.140 | −0.10 (0.10) | 0.317 |
| SELEVER + WASH | 345 | −0.84 (0.85) | 0.04 (0.06) | 0.575 | 0.06 (0.06) | 0.333 | 275 | −0.73 (0.86) | −0.12 (0.05) | 0.021 | −0.09 (0.11) | 0.377 |
| Test of equality | 0.832 | 0.695 | 0.606 | 0.959 | ||||||||
| Stunted (HAZ < −2) | ||||||||||||
| Trial | ||||||||||||
| Control | 730 | 0.09 (0.28) | ||||||||||
| SELEVER | 721 | 0.09 (0.28) | 0.01 (0.02) | 0.618 | 0.00 (0.02) | 0.949 | ||||||
| WASH substudy | ||||||||||||
| Control | 364 | 0.09 (0.28) | 304 | 0.14 (0.35) | ||||||||
| SELEVER | 376 | 0.08 (0.27) | −0.01 (0.02) | 0.530 | −0.02 (0.02) | 0.388 | 304 | 0.10 (0.31) | −0.02 (0.03) | 0.548 | −0.01 (0.04) | 0.811 |
| SELEVER + WASH | 345 | 0.1 (0.3) | 0.03 (0.02) | 0.123 | 0.02 (0.02) | 0.227 | 276 | 0.12 (0.32) | −0.01 (0.03) | 0.698 | −0.01 (0.04) | 0.821 |
| Test of equality | 0.049 | 0.063 | 0.854 | 0.983 | ||||||||
| Thin (BMIZ < −2) | ||||||||||||
| Trial | ||||||||||||
| Control | 729 | 0.06 (0.23) | ||||||||||
| SELEVER | 719 | 0.08 (0.27) | 0.02 (0.02) | 0.401 | 0.01 (0.02) | 0.645 | ||||||
| WASH substudy | ||||||||||||
| Control | 364 | 0.06 (0.24) | 304 | 0.05 (0.21) | ||||||||
| SELEVER | 374 | 0.07 (0.25) | 0.00 (0.02) | 0.971 | 0.00 (0.02) | 0.902 | 304 | 0.06 (0.24) | 0.03 (0.02) | 0.096 | 0.05 (0.02) | 0.060 |
| SELEVER + WASH | 345 | 0.09 (0.29) | 0.03 (0.03) | 0.239 | 0.03 (0.03) | 0.349 | 275 | 0.07 (0.26) | 0.02 (0.02) | 0.276 | 0.04 (0.03) | 0.169 |
| Test of equality | 0.314 | 0.362 | 0.876 | 0.722 | ||||||||
Note: This table presents intention‐to‐treat (ITT) effects for child anthropometic and morbidity outcomes for the SELEVER trial (1st level randomisation) and WASH substudy (2nd level randomisation), estimated using analysis of covariance (ANCOVA). Included control variables are child age and gender. Variables used in the trial‐level adjusted analysis include the primary education of the household head, a binary indicator for whether the household is polygamous and a binary variable indicating no chicken faeces was observed in the household compound. Variables used in the substudy‐level adjusted analysis include primary education of the household head, polygamous, water score, sanitation score and hygiene score. Household variables included in the adjusted analyses are measured at baseline. Regressions include survey weights to account for baseline sampling probabilities. Standard errors are clustered at the commune level. Endline refers to the fourth survey round, and lean‐season to the third survey round, respectively. Test of equality refers to a post‐estimation test of the equality between the coefficients in the SELEVER and SELEVER + WASH treatment arms. Intra‐class correlation coefficients (ICC) are morbidity 0.013, diarrhoea 0.005, height 0.013, weight 0.018, HAZ 0.043, BMIZ 0.029, stunted 0.028 and thin 0.015.