Table 2.
Prospective Associations between WHO-Defined (Left) and Caregiver-Defined (Right) Diarrhea and Fecal Indicator Bacteria (log10 MPN E. coli) Measurement on Child Hands, Stratified by Child Age Range in Monthsa
| WHO-defined diarrhea | caregiver-defined diarrhea | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| age (months) | children (n) | child-days at risk | IRR | 95% | CI | children (n) | child-days at risk | IRR | 95% | CI | |
| EPA categories | 0–5 | 1007 | 7505 | 1.29 | 1.10 | 1.51 | 1096 | 8384 | 1.44 | 1.16 | 1.77 |
| 6–23 | 424 | 2672 | 0.99 | 0.70 | 1.40 | 432 | 2764 | 1.04 | 0.69 | 1.55 | |
| 24–60 | 444 | 3700 | 1.26 | 0.85 | 1.85 | 443 | 3729 | 1.22 | 0.79 | 1.90 | |
| WHO categories | 0–4 | 796 | 5874 | 1.37 | 1.13 | 1.67 | 871 | 6622 | 1.55 | 1.24 | 1.96 |
| 5–18 | 613 | 4097 | 1.10 | 0.87 | 1.39 | 635 | 4321 | 1.10 | 0.84 | 1.45 | |
| 19–60 | 465 | 3906 | 1.23 | 0.84 | 1.79 | 465 | 3935 | 1.17 | 0.77 | 1.80 | |
a
Age categories based on Environmental Protection Agency (EPA) exposure guidelines and World Health Organization (WHO) mobility windows. Incidence rate ratio (IRR) estimated with generalized linear models, adjusted for season, monthly income, mothers’ education, study arm, and child days at risk.