Table 3 Logistic regression models of the association between the extent of chronic pain and probable bipolar disorder, relative to probable major depressive disorder
Model | Â | OR (95% CI*) | P value^ | P value^^ |
|---|---|---|---|---|
1. No adjustments (n = 149,612) | No chronic pain | 1 |  | <0.001 |
1 site | 1.04 (0.92, 1.18) | 0.520 | ||
2-3 sites | 1.25 (1.10, 1.43) | 0.001 | ||
4-7 sites | 1.42 (1.13, 1.77) | 0.002 | ||
Widespread pain | 1.92 (1.44, 2.57) | <0.001 | ||
2. Adjusted for sex, age, ethnicity, deprivation and employment status (n = 147,463) | No chronic pain | 1 |  | <0.001 |
1 site | 1.02 (0.90, 1.17) | 0.724 | ||
2-3 sites | 1.18 (1.03, 1.34) | 0.018 | ||
4-7 sites | 1.16 (0.92, 1.47) | 0.210 | ||
Widespread pain | 1.34 (0.99, 1.83) | 0.061 | ||
3. Adjustments as for 2. plus BMI, smoking status and frequency of alcohol consumption (n = 145,945) | No chronic pain | 1 |  | <0.001 |
1 site | 1.01 (0.88, 1.15) | 0.898 | ||
2-3 sites | 1.15 (1.01, 1.32) | 0.039 | ||
4-7 sites | 1.11 (0.88, 1.41) | 0.372 | ||
Widespread pain | 1.32 (0.97, 1.81) | 0.079 | ||
4. Adjustments as for 3. plus additional long term condition morbidity count (n = 145,518) | No chronic pain | 1 |  | <0.001 |
1 site | 1.01 (0.88, 1.15) | 0.881 | ||
2-3 sites | 1.16 (1.01, 1.33) | 0.035 | ||
4-7 sites | 1.12 (0.88, 1.43) | 0.339 | ||
Widespread pain | 1.34 (0.97, 1.83) | 0.072 |