Risk and HRs for COVID-19 requiring hospitalisation for adults living in healthcare worker households by number of young children
| No children aged 0–11 years | 1 child aged 0–11 years | 2 children aged 0–11 years | 3+ children aged 0–11 years | Per child | |
| N adults with COVID-19 requiring hospitalisation | 390 | 59 | 20 | 2 | – |
| Total N adults | 241 266 | 41 198 | 23 783 | 3850 | – |
| Risk per 10 000 | 16.2 | 14.3 | 8.4 | 5.2 | – |
| Unadjusted | 1 | 0.89 (0.67–1.17) | 0.53 (0.34–0.83) | 0.33 (0.08–1.32) | 0.77 (0.65–0.90) |
| Model 1 | 1 | 1.09 (0.82–1.46) | 0.69 (0.44–1.10) | 0.44 (0.11–1.79) | 0.88 (0.75–1.04) |
| Model 2 | 1 | 1.11 (0.83–1.49) | 0.72 (0.45–1.15) | 0.44 (0.11–1.78) | 0.90 (0.76–1.05) |
| Model 3 | 1 | 1.13 (0.84–1.52) | 0.73 (0.46–1.16) | 0.45 (0.11–1.81) | 0.90 (0.77–1.06) |
| Model 4 | 1 | 1.17 (0.87–1.57) | 0.78 (0.49–1.26) | 0.49 (0.12–1.97) | 0.93 (0.79–1.10) |
HRs obtained from Cox proportional hazard models. Model 1 adjusts for adults’ age using a penalised spline function. Model 2 additionally adjusts for sex, Scottish Index of Multiple Deprivation quintile, occupation (eg, nursing and medical), occupational role (patient facing, non-patient facing and undetermined), healthcare worker (yes/no), length of service, number of children aged 12–17 years in household and number of adults in household. Model 3 additionally adjusts for the comorbidity count and specific conditions (ischaemic heart disease, other heart disease, other circulatory system diseases, advanced chronic kidney disease, asthma and chronic lower respiratory disease, neurological disorders, decompensated liver disease, any immunological condition, malignant neoplasms, disorders of oesophagus, stomach and duodenum, type 1 diabetes and type 2 diabetes). Model 4 additionally adjusts for part-time status (additional model not prespecified).