Table 1.
Baseline sociodemographic and clinical characteristics of the CHIA cohort who consulted in primary care for acute respiratory tract symptoms during the COVID-19 pandemic.
| Variables | n = 70,431 |
|---|---|
| Sex | |
| Female, n (%) | 41,279 (58.61) |
| Male, n (%) | 29,152 (41.39) |
| Patients missing data, n (%) | 0 (0) |
| Age (years) | |
| Age, mean (SD) | 51.14 (25.41) |
| Patients missing data, n (%) | 0 (0) |
| Ethnicity | |
| White, n (%) | 37,974 (53.92) |
| Asian, n (%) | 1,746 (2.48) |
| Black, n (%) | 365 (0.52) |
| Mixed or Other, n (%) | 676 (0.96) |
| Missing data, n (%) | 29,670 (42.13) |
| Index of multiple deprivation | |
| 1, n (%) most deprived | 8,397 (11.92) |
| 2, n (%) | 12,301 (17.47) |
| 3, n (%) | 12,819 (18.2) |
| 4, n (%) | 15,178 (21.55) |
| 5, n (%) least deprived | 20,040 (28.45) |
| Missing data, n (%) | 1,696 (2.41) |
| Smoking status | |
| Current smoker, n (%) | 9,466 (13.44) |
| Ex smoker, n (%) | 21,425 (30.42) |
| Never smoked, n (%) | 31,264 (44.39) |
| Missing data, n (%) | 8,276 (11.75) |
| Comorbidities recorded | |
| Stroke, n (%) | 3,765 (5.35) |
| Chronic kidney disease, n (%) | 5,414 (7.69) |
| COPD, n (%) | 5,451 (7.74) |
| Asthma, n (%) | 9,422 (13.38) |
| Diabetes, n (%) | 7,547 (10.72) |
| Cancer, n (%) | 4,972 (7.06) |
| Mental health disorders, n (%) | 9,839 (13.97) |
| Atrial fibrillation, n (%) | 4,760 (6.76) |
| Cardiovascular disease, n (%) | 625 (0.89) |
| Epilepsy, n (%) | 960 (1.36) |
| Heart failure, n (%) | 2,976 (4.23) |
| Rheumatoid arthritis, n (%) | 1,061 (1.51) |
COPD, chronic obstructive pulmonary disease.