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. 2014 Jun 12;8(6):e2945. doi: 10.1371/journal.pntd.0002945

Table 3. School-level independent variables included in C&RT and CIT analysis (n = 39).

Independent Variable Response N (%) Variable Type WASH Characteristic
Intervention status2 Intervention group 20 (51%) Dichotomous WASH
Control group 19 (49%)
Pupil enrollment (2009)3 Parameterized by quintiles NA Ordinal Demographic
Available drinking water2 Yes 23 (59%) Dichotomous Water
Available hand washing water2 Yes 23 (59%) Dichotomous Water
Current season improved water source1 Yes 27 (69%) Dichotomous Water
Dry season improved water source1 Yes 19 (49%) Dichotomous Water
Mean (SD)
Drinking water always available4 Proportion of pupils respondingyes,per school 0.51 (0.4) Continuous Water
Hand washing water always available4 Proportion of pupils respondingyes,per school 0.39 (0.4) Continuous Hygiene
Soap always available4 Proportion of pupils respondingyes,per school 0.12 (0.1) Continuous Hygiene
Acceptable latrines per 100 pupils5 Observation and school records 1.03 (1.6) Continuous Sanitation
Latrine Structure6 Observation and principal component analysis NA Continuous Sanitation
Latrine Cleanliness6 Observation and principal component analysis NA Continuous Sanitation
1

Reported by respondent (head teacher); “improved” based on definitions by the WHO/UNICEF Joint Monitoring Program for Water Supply and Sanitation [34].

2

Observed by interviewer.

3

Obtained from school records.

4

Originally a yes/no variable reported individually by each pupil, then combined to get a percent of pupils reporting “yes” for each school.

5

Calculated using principal component analysis derived from observation and school enrollment records.

6

Calculated using principal component analysis derived from observation.