| AIC | Akaike information criterion |
| BMI | body mass index |
| COPD | chronic obstructive pulmonary disease |
| Cox PH model | Cox proportional hazards model |
| HPV | human papillomavirus |
| HR | hazard ratio |
| ICD | International Classification of Diseases |
| PH assumption | proportional hazards assumption |
| STROBE | Strengthening the Reporting of Observational Studies in Epidemiology |
| 95% CI | 95% confidence interval |
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