Table 4: Multiple Logistic Regression Models for Pain and Somatisation

Variable Coefficient (β) S.E. Wald χ2 P value Odds ratio 95% CI Lower Upper

Pain

Constant -1.573 0.445 12.471 0.001 0.207

Gender 0.256 0.275 0.870 0.351 1.292 0.754 2.214

Age 0.007 0.010 0.471 0.493 1.007 0.988 1.026

Depression 1.597 0.332 23.183 0.001 4.939 2.578 9.462
PTSD 1.094 0.445 12.471 0.005 2.986 1.389 6.421

Somatisation

Constant -3.075 0.725 18.005 0.001 0.046

Gender -0.986 0.433 5.188 0.023 0.373 0.160 0.872

Age 0.007 0.015 0.243 0.622 1.008 0.978 1.038

Depression 2.132 0.475 20.127 0.001 8.434 3.323 21.410

PTSD 1.316 0.474 7.696 0.006 3.727 1.471 9.441

Note. Pain = Mean VAS pain (score ≥ 4.5). Somatisation = Men (symptoms on TSC ≥ 4), women (symptoms on TSC ≥ 6).