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. 2018 Jun 10;15(6):1223. doi: 10.3390/ijerph15061223

Table 3.

Comparisons of WSP outcome and impact indicators between baseline and follow-up. The analysis includes the number of sites (n), the percentage of sites reporting any given activity, median values across all sites at baseline and follow-up, and the statistical significance of the change between baseline and follow-up (p-value). p-values were determined using the paired Wilcox rank-sum test for all except the binary W3a and W3c indicators, which were determined using the chi-squared test. Results for each indicator, except O1b, are reported for 12-month periods.

Code Indicator n Unit % of Sites Median Values p-Values
Base-Line Follow-Up Base-Line Follow-Up
Operational Outcomes
O1a Infrastructure changes due to WSP 95 yes/no - 86 - - -
O1b Level of operations and management practices 93 % - - 9 44 <0.01
Financial Outcomes
F3a Financial support due to WSP 89 yes/no - 42 - - -
Institutional Outcomes
I1a Internal meetings 92 number 16 60 0 2 <0.01
I1b External water safety meetings 92 number 25 48 0 0 <0.01
I1c Consumer water safety trainings 85 number 16 53 0 1 <0.01
Water Supply Impact
W1a Continuity 93 h/week 34 a 37 a 97 104 0.59
W1b Service coverage 76 % - - 85 81 0.75
W1d Unaccounted-for water (UFW) 30 % - - 25 20 0.01
W2a Microbial tests 89 number 73 85 3 12 <0.01
W2b Microbial compliance 60 % - - 99 98 0.24
W2c Turbidity tests 87 number 45 70 0 4 <0.01
W2d Turbidity compliance 37 % - - 100 100 0.5
W2e Disinfectant residual tests 74 number 39 57 0 10 <0.01
W3a Consumer satisfaction surveys 92 % 13 33 - - <0.01
W3c Consumer complaint records 92 % 41 61 - - <0.01

a Sites reporting continuous supply.