Table 3 Association of sputum culture conversion at different time points with cure
Month of treatment | Cured No. (%) | Odds ratio (95% Cl) | p-value* | Sensitivity (95% Cl) | Specificity (95% Cl) | Accuracy (95% Cl) | |
|---|---|---|---|---|---|---|---|
No | Yes | ||||||
2-month | Â | Â | Â | Â | Â | Â | Â |
 Did no convert  Converted | 173 (67.1) 36 (37.1) | 85 (32.9) 61 (62.9) | Referent 3.4 (2.1–5.6) |  < 0.001 | 41.8 (33.7–50.2) | 82.8 (76.9–87.6) | 65.9 (60.7–70.8) |
4-month | Â | Â | Â | Â | Â | Â | Â |
 Did no convert  Converted | 156 (78.0) 53 (34.2) | 44 (22.0) 102 (65.8) | Referent 6.8 (4.2–10.9) |  < 0.001 | 69.9 (61.7–77.2) | 74.6 (68.2–80.4) | 72.7 (67.7–77.2) |
6-month | Â | Â | Â | Â | Â | Â | Â |
 Did no convert  Converted | 145 (86.8) 64 (34.0) | 22 (13.2) 124 (66.0) | Referent 12.7 (7.4–21.9) |  < 0.001 | 84.9 (78.1–90.3) | 69.4 (62.6–75.5) | 75.8 (71.0–80.1) |