Table 3.
Risk factor identification.
| Variables | Univariate analysis | OR | Multivariate analysis | OR | 95% CI lower | 95% CI upper |
|---|---|---|---|---|---|---|
| P value | P value | |||||
| Age | <0.001 | 1.068 | 0.023 | 2.115 | 1.264 | 5.339 |
| Income (40,000–100,000 RMB/year) | <0.001 | 0.258 | <0.001 | 0.262 | 0.131 | 0.521 |
| Educational status (≥university education) | 0.009 | 0.539 | 0.02 | 0.515 | 0.294 | 0.902 |
| Perimenopause | 0.002 | 2.32 | 0.061 | / | / | / |
| Menopause | 0.002 | 6.75 | 0.013 | 5.233 | 1.365 | 22.102 |
| Marital status | 0.059 | / | / | / | / | / |
| Physical activity (frequently) | 0.173 | / | / | / | / | / |
| Parity | 0.042 | 1.384 | 0.017 | 1.662 | 1.096 | 2.519 |
| TSH | 0.562 | / | / | / | / | / |
| TPOab | 0.546 | / | / | / | / | / |
| Tgab | 0.879 | / | / | / | / | / |
| BMI | 0.013 | 1.131 | 0.291 | / | / | / |
| Systolic pressure | 0.352 | / | / | / | / | / |
| Diastolic pressure | 0.734 | / | / | / | / | / |
| Hypertension | 0.47 | / | / | / | / | / |
| Diabetes | 0.523 | / | / | / | / | / |
| Smoking | 0.499 | / | / | / | / | / |
| Alcohol consumption | 0.222 | / | / | / | / | / |
| HD | 0.19 | / | / | / | / | / |
| fT3 | <0.001 | 3.9 | <0.001 | 4.669 | 2.878 | 7.577 |
| fT4 | 0.17 | / | / | / | / | / |
| Depression status (medium risk) | 0.001 | 32.535 | 0.008 | 19.297 | 2.138 | 174.156 |
fT3: free triiodothyronine; fT4: free thyroxine; TPOab: thyroid peroxidase antibody; Tgab: thyroglobulin antibody; TSH: thyroid stimulating hormone; BMI: body mass index.
P < 0.05 indicates a significant difference.