Table 1.
Baseline characteristics of the total, training, and validation populations in the control clusters of the Vi-TTa cluster randomized trial, Dhaka, Bangladesh.
| Characteristics | Full set | Training set | Validation set |
| Age (years), mean (SD) | 25.9 (17.3) | 25.9 (17.3) | 25.9 (17.3) |
| Gender: men, n (%) | 81,134 (49.7) | 48,638 (49.6) | 32,496 (49.8) |
| Religion: Muslim, n (%) | 161,591 (98.9) | 97,004 (98.9) | 64,587 (98.9) |
| Monthly expenditure (BDTb)c, mean (SD) | 17,420.3 (9053.2) | 17,397.5 (7793) | 17,454.6 (10,670.3) |
| Toilet facility: private, n (%) | 68838 (42.1) | 41155 (42) | 27683 (42.4) |
| Adult toilet: flush toilet, n (%) | 7804 (4.8) | 4617 (4.7) | 3187 (4.9) |
| Child toilet: flush toilet, n (%) | 1000 (0.6) | 580 (0.6) | 420 (0.6) |
| Source of drinking water: private tap, well, or pump; water vendor, n (%) | 63,263 (38.7) | 37,854 (38.6) | 25,409 (38.9) |
| Treated drinking water, n (%) | 122,258 (74.8) | 73,527 (75) | 48,731 (74.6) |
| Treated cleaning water, n (%) | 475 (0.3) | 300 (0.3) | 175 (0.3) |
| WASHd before meals, n (%) | 121,595 (74.4) | 73,019 (74.4) | 48,576 (74.4) |
| Hand wash after defecation, n (%) | 159,390 (97.6) | 95,698 (97.6) | 63,692 (97.6) |
| Handwashing water available in HHe, n (%) | 159,193 (97.5) | 95,616 (97.5) | 63,577 (97.4) |
| Handwashing soap available in HH, n (%) | 161,443 (98.8) | 96,985 (98.9) | 64,458 (98.7) |
| Waste disposal place: fixed disposal, n (%) | 155,458 (95.2) | 93,406 (95.2) | 62,052 (95) |
| Distance to drinking water source: shorter than median distance, n (%) | 108,129 (66.2) | 64,772 (66) | 43,357 (66.4) |
| Water filter available in HH, n (%) | 19,271 (11.8) | 11,628 (11.9) | 7643 (11.7) |
aVi-TT: Vi-tetanus toxoid.
bBDT: Bangladeshi taka; currency conversion rate: US $1 = BDT 110.48
cIn total, 75 households had missing household expenditures, which were then substituted with the average household expenditure.
dWASH: waster, sanitation, and hygiene.
eHH: household.