Table 1:
Baseline characteristics and serological results
| 9–11 months | 3–4 years | 7–9 years | 15 years | Total | |
|---|---|---|---|---|---|
| BASELINE CHARACTERISTICS | |||||
| Enrolled | 100 | 100 | 100 | 100 | 400 |
| Colombo | 37 | 34 | 33 | 33 | 137 |
| Badulla | 30 | 32 | 33 | 34 | 129 |
| Killinochi | 33 | 34 | 34 | 33 | 134 |
| Gender (% Female) | |||||
| Colombo | 54% | 41% | 39% | 33% | 42% |
| Badulla | 37% | 47% | 52% | 44% | 45% |
| Killinochi | 36% | 44% | 41% | 42% | 41% |
| Fully Vaccinated with OPV (%) | |||||
| Colombo | 100% | 100% | 100% | 100% | 100% |
| Badulla | 97% | 100% | 100% | 100% | 99% |
| Killinochi | 100% | 100% | 100% | 91% | 98% |
| Average Monthly Income per Household < $ 75 (%) | |||||
| Colombo | 0% | 0% | 3% | 0% | 1% |
| Badulla | 3% | 0% | 9% | 6% | 5% |
| Killinochi | 36% | 18% | 0% | 9% | 16% |
| SEROLOGICAL RESULTS | |||||
| Poliovirus Type 1 | |||||
| % positive (95% CI) | 96 (90.1, 98.9) | 99 (94.6, 100) | 99 (94.6, 100) | 97 (91.5, 99.4) | 98 (95.6, 98.9) |
| Median Titer, (95% CI) | ≥1448 (≥1448, ≥1448) | 724.1 (455, 1152) | 325 (181, 455) | 90.5 (56, 144) | 455 (455, 724) |
| Poliovirus Type 2 | |||||
| % positive (95% CI) | 98 (93, 99.8) | 97 (91.5, 99.4) | 99 (94.6, 100) | 100 (96.4,100) | 99 (96.6, 99.4) |
| Median Titer, (95% CI) | ≥1448 (≥1448, ≥1448) | 576 (408, 724) | 227 (144, 455) | 113 (90, 181) | 455 (362, 576) |
| Poliovirus Type 3 | |||||
| % positive (95% CI) | 95 (88.7, 98.4) | 90 (82.4, 95.1) | 77 (67.5, 84.8) | 75 (65.3, 83.1) | 84 (80.3, 87.7) |
| Median Titer, (95% CI) | 910 (576, 1152) | 113 (64, 227) | 36 (18, 90) | 28 (11, 45) | 91 (72, 144) |