Table 2.
Baseline characteristics of age and sex matched cohorts after IPTW.
| IPTW % | ASD | ||
|---|---|---|---|
| Non-sinusitis cohort | Sinusitis cohort | ||
| Year of index | |||
| 2002–2004 | 47.00 | 47.09 | < 0.01 |
| 2005–2007 | 20.45 | 20.36 | < 0.01 |
| 2008–2010 | 12.53 | 12.44 | < 0.01 |
| 2011–2013 | 10.31 | 10.30 | < 0.01 |
| 2014–2016 | 5.69 | 5.73 | < 0.01 |
| 2017–2019 | 4.02 | 4.08 | < 0.01 |
| Sex | |||
| Male | 49.43 | 49.27 | < 0.01 |
| Female | 50.57 | 50.73 | < 0.01 |
| Age at T0 | |||
| < 40 | 64.73 | 64.61 | < 0.01 |
| 40–49 | 15.58 | 15.49 | < 0.01 |
| 50–59 | 11.97 | 11.95 | < 0.01 |
| 60–69 | 5.40 | 5.54 | 0.01 |
| 70–79 | 1.84 | 1.91 | 0.01 |
| ≥ 80 | 0.48 | 0.50 | < 0.01 |
| Urbanization level | |||
| 1 (high) | 30.73 | 30.34 | 0.01 |
| 2 | 29.63 | 29.75 | < 0.01 |
| 3 | 16.89 | 16.93 | < 0.01 |
| 4 | 13.84 | 13.98 | < 0.01 |
| 5 | 1.72 | 1.74 | < 0.01 |
| 6 | 4.11 | 4.16 | < 0.01 |
| 7 (low) | 3.07 | 3.10 | < 0.01 |
| Type of insurance coverage | |||
| Government | 6.87 | 6.93 | < 0.01 |
| Labor | 59.94 | 60.23 | 0.01 |
| Farmers’/fishermen’s membership | 13.27 | 13.59 | 0.01 |
| Low-income households | 0.61 | 0.60 | < 0.01 |
| Non-labor force/unemployed | 17.08 | 16.54 | 0.01 |
| Others | 2.23 | 2.10 | 0.01 |
| Length of hospital stay (within 180 days before T0) | |||
| 0 day | 98.86 | 98.79 | 0.01 |
| 1–6 days | 0.76 | 0.77 | < 0.01 |
| >=7 days | 0.39 | 0.44 | 0.01 |
| Co-morbidity (within 180 days before T0) | |||
| Hypertension | 6.73 | 6.95 | 0.01 |
| Diabetes mellitus | 2.76 | 2.86 | 0.01 |
| Hyperlipidemia | 3.43 | 3.48 | < 0.01 |
| Ischemic heart diseases | 1.58 | 1.59 | < 0.01 |
| Peripheral vascular disease | 0.15 | 0.16 | < 0.01 |
| Ischemic stroke | 0.15 | 0.16 | < 0.01 |
| Hemorrhagic stroke | 0.15 | 0.17 | 0.01 |
| Chronic kidney disease | 0.35 | 0.37 | < 0.01 |
| COPD | 1.79 | 1.60 | 0.01 |
| Alcohol-related disorders | 0.40 | 0.41 | < 0.01 |
| Rheumatoid arthritis | 0.18 | 0.18 | 0.01 |
| Systemic lupus erythematosus | 0.06 | 0.07 | 0.01 |
| Co-medication (within 180 days before T0) | |||
| Systemic corticosteroids | 6.30 | 5.96 | 0.01 |
| NSAIDs | 28.89 | 28.69 | < 0.01 |
| Beta- blockers | 3.52 | 3.61 | < 0.01 |
| CCBs | 3.70 | 3.82 | 0.01 |
| ACEI | 1.32 | 1.37 | < 0.01 |
| ARBs | 2.11 | 2.18 | < 0.01 |
| Statin | 1.44 | 1.47 | < 0.01 |
| Diuretics | 0.21 | 0.22 | < 0.01 |
| Vitamin K antagonists | 0.13 | 0.14 | < 0.01 |
| Heparin preparations | 0.09 | 0.09 | < 0.01 |
ASD, absolute standardized difference was calculated to assess balance, with values less than 0.1 indicating good balance.