Table 2.
Diagnostic value of colonoscopy for colonic diverticula in 65 patients
| Number1 | Sens, % (95%CI) | Spec, % (95%CI) | LR (+) (95%CI) | LR (-) (95%CI) | ROC-AUC (95%CI) | P value |
| All (44/21) | 91 (79-98) | 90 (67-99) | 8.7 (2.3-32) | 0.097 (0.038-0.52) | 0.90 (0.82-0.99) | |
| Age (yr) | ||||||
| < 70 (18/9) | 90 (67-99) | 88 (47-100) | 7.2 (1.1-45) | 0.12 (0.032-0.46) | 0.89 (0.74-1) | |
| ≥ 70 (26/12) | 93 (76-99) | 91 (59-100) | 10 (1.6-66) | 0.082 (0.021-0.31) | 0.92 (0.82-1) | 0.68 |
| Sex | ||||||
| Female (13/12) | 100 (72-100) | 86 (57-98) | 5.8 (1.8-18) | 0.05 (0.0033-0.76) | 0.93 (0.83-1) | |
| Male (31/9) | 89 (73-97) | 100 (48-100) | 11 (0.74-150) | 0.14 (0.056-0.33) | 0.94 (0.89-1) | 0.47 |
| Location | ||||||
| Right colon (40/25) | 95 (84-99) | 96 (79-100) | 23 (3.4-156) | 0.051 (0.013-0.20) | 0.96 (0.90-1) | |
| Left colon (26/39) | 66 (49-80) | 96 (81-100) | 18 (2.6-123) | 0.36 (0.23-0.56) | 0.81 (0.73-0.90) | 0.02 |
1
With/without diverticulosis. P values were calculated using the receiver operating characteristic curve area under the curve (ROC-AUC) for comparisons in this category. Sens: Sensitivity; Spec: Specificity; LR: Likelihood ratio.