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. 2012 Jul 1;87(1):18–22. doi: 10.4269/ajtmh.2012.12-0051

Table 5.

Differential trends in water handling and hygiene behaviors between tested and control households

Δ (Follow-up – baseline) among treatment group Δ (Follow-up – baseline) among control group
Ordinary binary outcomes
 Treats water by any recommended method –19.3* (–23.1, –15.6) –20.5* (–24.3, –16.7)
 Extracts water using ladle or tap –2.8 (–5.4, –0.2) –4.2* (–6.2, –2.1)
 Storage vessel has tight screw cap 2.1 (–0.2, 4.5) 0.5 (–1.5, 2.5)
Categorical outcomes Odds ratio: follow-up vs. baseline among treatments Odds ratio: follow-up vs. baseline among controls
 Cleaning frequency: vessel used to fetch water  (1 = daily; 5 = never) 1.48* (1.09, 2.01) 2.00* (1.51, 2.65)
 Cleaning frequency: vessel used to store water  (1 = daily; 5 = never) 1.22* (0.95, 1.58) 1.46* (1.14, 1.87)
 Frequency of advanced filter usage  (1 = daily; 5 = never) 1.46* (1.07, 1.99) 1.77* (1.27, 2.48)
 Number of occasions prompting hand washing  (of five specific types of occasions) 0.26* (0.23, 0.32) 0.25* (0.21, 0.30)
*

Significant with P < 0.05.

Significant with P < 0.1.

This table represents an alternative presentation of the DiD values reported in Table 4; results come from the same regressions as those results reported in Table 4. All coefficients and 95% CI limits (shown in parentheses) are multiplied by 100, and therefore, they represent marginal effects in percentage point terms.