Respiratory history of patients hospitalised in France for COVID-19 (1 March 2020 to 30 April 2020) or seasonal influenza (1 December 2018 to 28 February 2019)
| COVID-19 | 2018–2019 seasonal influenza | p-value | |
| Patients | 89 530 | 45 819 | |
| Male | 47 495 (53.05) | 22 118 (48.27) | <0.0001 |
| Age | 65±20 | 59±32 | <0.0001 |
| Obese (BMI ≥30 kg·m−2) | 8611 (9.62) | 2491 (5.44) | <0.0001 |
| Diabetes | 17 050 (19.04) | 7352 (16.05) | <0.0001 |
| Hypertension | 29 622 (33.09) | 12 921 (28.20) | <0.0001 |
| Heart failure | 7134 (7.97) | 6266 (13.68) | <0.0001 |
| CRF | 1433 (1.60) | 1830 (3.99)# | <0.0001 |
| Sleep apnoea | 3581 (4.00)# | 1443 (3.15) | <0.0001 |
| Pulmonary hypertension | 341 (0.38) | 247 (0.54)# | <0.0001 |
| COPD | 4866 (5.44) | 4637 (10.12)# | <0.0001 |
| Asthma | 3273 (3.66) | 2230 (4.87)# | <0.0001 |
| CF with pulmonary manifestations | 20 (0.02) | 79 (0.17)# | <0.0001 |
| Lung cancer | 977 (1.09)# | 431 (0.94) | 0.0098 |
| Emphysema | 1426 (1.59)# | 553 (1.21) | <0.0001 |
| Pulmonary sarcoidosis | 159 (0.18) | 81 (0.18) | 0.9732 |
| ILDs | 1611 (1.80)# | 471 (1.03) | <0.0001 |
Data are presented as n, n (%) or mean±sd, unless otherwise stated. BMI: body mass index; CRF: chronic respiratory failure; COPD: chronic obstructive pulmonary disease; CF: cystic fibrosis; ILD: interstitial lung disease. #: significantly increased prevalence (p<0.05).