| | Univariate analysis | Multivariate analysis | RC | IC 95% | | RC | IC 95% | |
| Pain | | | | | | | No | 1 | | | 1 | | | Yes | 12,57 | 4,1–38,9] | <10−4 | 4,1 | 0,6–26,6 | NS | Metrorrhagia | | | | | | | No | 1 | | | 1 | | | Yes | 11,06 | 3,6–33,6] | <10−4 | 1,1 | 0,09–13,1 | NS | Screening | | | | | | | No | 1 | | | 1 | | | Yes | 45,3 | 8,9–231,8] | | 30,5 | [4,5–207,2] | 0,0005 | Number of examiners | | | | | | | 1 | 1 | | | 1 | | | 2 | 0,2 | 0,02–1,9] | 0,16 | 0,19 | 0,02–2,4 | NS | 3 | 0,02 | 0,002–0,2] | <10−3 | 0,14 | 0,007–2,9 | NS | Type of examiner | | | | | | | Specialist | 1 | | | 1 | | | Generalist | 9,6 | 2,5–35,9] | | 1,4 | 0,2–11,8 | NS | Examination under narcosis | | | | | | | No | 14,3 | 3,8–54,1] | 10−4 | 6,5 | [1,3–31,7] | 0,02 | Yes | 1 | | | 1 | | | Obesity | | | | | | | No | 1 | | | 1 | | | Yes | 25,9 | 2,4–33,2] | 10−3 | 6,9 | [1,2–40,9] | 0,03 | CT scan | | | | | | | No | 6,6 | 2,1–20,4] | 10−3 | 0,3 | 0,05–1,5 | NS | Yes | 1 | | | 1 | | |
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