Evaluating the efficacy of point-of-use water filtration units in Fiji

Table 4 Severe diarrhea by age group at baseline and follow-up

Aggregation	Timing	Prevalence	Odds ratio (95% CI)	Adjusted odds ratio (95% CI)⁴
Household¹	Baseline	9.7% (49/503)	18.0 (5.4, 59.5)***	29.5 (7.5, 115.2)***
Household¹	Follow-up	0.6% (3/503)	1.0	1.0
Adults only²	Baseline	7.4% (37/503)	Infinite***⁵	Infinite***⁵
Adults only²	Follow-up	0.0% (0/503)	1.0	1.0
Children aged 6–17 years only³	Baseline	7.9% (20/254)	7.2 (2.1, 25.1)**	8.5 (2.3, 31.6)**
Children aged 6–17 years only³	Follow-up	1.2% (3/254)	1.0	1.0

*p < 0.05; **p < 0.01; ***p < 0.001
¹Summarized as whether anyone in the household experienced diarrhea within the previous 2 weeks so that it caused them to miss work (adults) or school (school-aged child)
²Summarized as whether any adult in the household experienced diarrhea within the previous 2 weeks severe enough to miss work
³Summarized as whether any children in the household experienced diarrhea within the previous 2 weeks severe enough to miss school
⁴Adjusted for all variables in Table 1 plus an indicator variable for whether the water source changed, an indicator variable for whether the person answering the survey questions changed, and a variable indicating any change in the number of adults in the household.
⁵ Infinite odds ratios because the prevalence was 0.0% at follow-up

ISSN: 1349-4147