Table 3 Logistic regression of the CHR/non-CHR classification by PQ-B items
Variables | B | S.E. | Wald | Df | p | Exp(B) |
|---|---|---|---|---|---|---|
PQ1 | 0.223 | 0.086 | 6.764 | 1 | 0.009 | 1.249 |
PQ4 | 0.225 | 0.077 | 8.489 | 1 | 0.004 | 1.252 |
PQ12 | 0.240 | 0.094 | 6.504 | 1 | 0.011 | 1.271 |
PQ13 | 0.204 | 0.082 | 6.138 | 1 | 0.013 | 1.226 |
PQ15 | 0.282 | 0.103 | 7.527 | 1 | 0.006 | 1.326 |
PQ17 | 0.182 | 0.088 | 4.317 | 1 | 0.038 | 1.200 |
PQ18 | 0.199 | 0.064 | 9.666 | 1 | 0.002 | 1.220 |
PQ21 | 0.188 | 0.094 | 3.995 | 1 | 0.046 | 1.206 |
Constant | −9.813 | 0.468 | 439.389 | 1 | < 0.001 | 0.000 |
Overall model fit test | χ2 = 252.494, p < 0.001; Hosmer–Lemeshow test value = 8.309, p = 0.306. | |||||
Associated strength | Cox-Snell R2 = 0.011; Nagelkerke R2 = 0.263 | |||||