TABLE 5.
Performance of BIC-selected model on specimens by visit
| Subgroup or performance evaluation | Value by visit: |
Total | |||
|---|---|---|---|---|---|
| Initial visit | Post-treatment (1 week) | Short-term follow-up (40–45 Days) | Long-term follow-up (∼monthly) | ||
| No. of women | 146 | 103 | 85 | 24 | 148 |
| No. of samples | 146 | 103 | 85 | 51 | 385 |
| No. (%) with Amsel's criteria 0–2 (non-BV) | 23 | 97 | 53 | 41 | 214 |
| No. (%) correcta | 22 (96) | 93 (96) | 48 (91) | 41 (100) | 204 (95) |
| No. (%) incorrecta | 1 (4.3) | 4 (4.1) | 5 (9.4) | 0 (0.0) | 10 (4.7) |
| No. (%) with Amsel's criteria 3–4 (BV) | 123 (84) | 6 | 32 | 10 | 171 |
| No. (%) correctb | 112 (91) | 6 (100) | 29 (91) | 10 (100) | 157 (92) |
| No. (%) incorrectb | 11 (8.9) | 0 (0.0) | 3 (9.4) | 0 (0.0) | 14 (8.2) |
| Sensitivity, % (95% CIc) | 91 (85–95) | 100 (54–100) | 91 (75–98) | 100 (69–100) | 92 (87–95) |
| Specificity, % (95% CI) | 96 (78–100) | 96 (90–99) | 91 (79–97) | 100 (91–100) | 95 (92–98) |
| Positive predictive value, % (95% CI) | 99 (95–100) | 60 (26–88) | 85 (69–95) | 100 (96–100) | 94 (89–97) |
| Negative predictive value, % (95% CI) | 67 (48–82) | 100 (96–100) | 94 (84–99) | 100 (91–100) | 94 (89–96) |
a
Percentage is a percent of the specimens with 0–2 Amsel's criteria.
b
Percentage is a percent of the specimens with 3–4 Amsel's criteria.
c
CI, confidence interval.