Table 4 Determinants of each level of confidence statement (multivariable analysis)
Confidence Level | A | B | C | ||||
|---|---|---|---|---|---|---|---|
Variable | OR (95%CI) | p | OR (95%CI) | p | OR (95%CI) | p | |
Gender | F | – | NS | 1 (ref) | 0.004 | 1 (ref) | |
M | – | 0.89 (0.82–0.96) | 1.15 (1.00–1.32) | 0.047 | |||
Success rate of the question (%) | 0.998 (0.997–0.998) | 0.0001 | 1.004 (1.003–1.005) | 0.0001 | 1.01 (1.01–1.01) | 0.0001 | |
Discrimination index of the question (%) | 1.038 (1.037–1.039) | 0.0001 | 0.98 (0.97–0.98) | 0.0001 | 0.97 (0.97–0.97) | 0.0001 | |
Type of question | M-MCQ | 1 (ref) | 0.0001 | 1 (ref) | 0.0001 | 1 (ref) | 0.0001 |
S-MCQ | 1.589 (1.481–1.704) | 0.47 (0.44–0.50) | 1.99 (1.80–2.20) | ||||
N correct answer options in the question | 1 | 1 (ref) | 0.0001 | 1 (ref) | 0.21 | 1 (ref) | 0.0001 |
question | 2 | 1.224 (1.152–1.301) | 0.96 (0.91–1.02) | 0.84 (0.77–0.92) | |||
3 | 1.246 (1.175–1.322) | 0.98 (0.93–1.04) | 0.76 (0.70–0.82) | ||||
4 | 1.324 (1.236–1.417) | 1.04 (0.98–1.11) | 0.54 (0.49–0.60) | ||||
5 | 1.486 (1.309–1.688) | 0.89 (0.78–1.00) | 0.41 (0.30–0.57) | ||||
Unadjusted test grade | 1.180 (1.170–1.190) | 0.0001 | 0.95 (0.94–0.95) | 0.0001 | 0.80 (0.79–0.81) | 0.0001 | |