Table 2.
Association between weight-adjusted waist index and psoriasis.
| WWI | Psoriasis | P for tend |
|---|---|---|
| OR (95% CI) | ||
| Crude model (model 1) | ||
| Continuous | 1.28 (1.15, 1.44) | |
| Categories | ||
| Quartile 1 | 0 (ref) | <.0001 |
| Quartile 2 | 1.34 (1.00, 1.80) | |
| Quartile 3 | 1.36 (1.01, 1.81) | |
| Quartile 4 | 1.75 (1.33, 2.32) | |
| Minimally adjusted model (model 2) | ||
| Continuous | 1.23 (1.07, 1.40) | |
| Categories | ||
| Quartile 1 | 0 (ref) | .0123 |
| Quartile 2 | 1.27 (0.94, 1.71) | |
| Quartile 3 | 1.25 (0.91, 1.71) | |
| Quartile 4 | 1.54 (1.12, 2.12) | |
| Fully adjusted model (model 3) | ||
| Continuous | 1.21 (1.05, 1.45) | |
| Categories | ||
| Quartile 1 | 0 (ref) | .0214 |
| Quartile 2 | 1.21 (0.87, 1.92) | |
| Quartile 3 | 1.76 (0.91, 1.94) | |
| Quartile 4 | 1.83 (1.01, 2.34) | |
Model 1: no covariates were adjusted.
Model 2: age, gender, and race were adjusted.
Model 3: age, gender, race, education level, PIR, BMI, drinking alcohol, smoking, diabetes, coronary heart disease, high blood pressure, LDL-C, asthma, arthritis, thyroid problems, chronic bronchitis, and triglycerides were adjusted.
Abbreviations: BMI = body mass index, LDL-C = low-density lipoprotein, PIR = the ratio of income-to-poverty, Q = quartile, WWI = weight-adjusted waist index.