Table 4 Hazard ratio (HR) of household incidence - summary table for influenza-like -illness (ILI), lower respiratory infection (LRTI) and upper respiratory infection (URTI). Registered Population of the RCGP RSC Surveillance Network of primary care practices in UK. 2013/14 Season to 2017/18 Season
Variable type | Variable detail | Reference group: | ILI (HR) (95% C.I) | LRTI (HR) (95% C.I) | URTI (HR) (95% C.I) |
|---|---|---|---|---|---|
Gender | Female:male ratio | female | 0·87 (0·76–0·99) | 0·94 (0·9–0·98) | 0·83 (0·81–0·84) |
Socioeconomic status (SES) | IMD Quintile | Change with improved SES | 0·91 (0·84–0·99) | 0·99 (0·97–1·02) | 0·93 (0·92–0·94) |
Ethnicity | Asian | White ethnicity | 2·38 (2·32–2·44) | 1·06 (0·92–1·21) | 1·48 (1·42–1·55) |
Black | 0·81 (0·71–0·91) | 0·69 (0·53–0·9) | 0·89 (0·83–0·95) | ||
Mixed | 1·33 (1·23–1·60) | 1·04 (0·85–1·26) | 1·28 (1·20–1·37) | ||
Other | 1·93 (1·64–2·23) | 0·7 (0·53–0·94) | 1·15 (1·05–1·25) | ||
Preschool child | Under 5 in Household | No under 5 | 2·34 (1·88–2·90) | 2·97 (2·76–3·2) | 10·32 (10·04–10·62) |
Household size | Household size | For each increase in size | 1·56 (1·46–1·67) | 1·36 (1·36–1·41) | 1·29 (1·27–1·30) |
Presence of Disease | Asthma | Not present in household | 1·05 (0·82–1·33) | 1·48 (1·4–1·58) | 1·15 (1·11–1·19) |
Pregnancy | 1·67 (1·03–2·70) | 0·91 (0·74–1·11) | 1·03 (0·96–1·11) | ||
Diabetes | 1·2 (0·92–1·55) | 1·31 (1·22–1·41) | 0·7 (0·66–0·74) | ||
Respiratory Condition | 0·72 (0·43–1·21) | 1·43 (1·31–1·56) | 0·53 (0·47–0·59) | ||
Coronary Heart disease | 1·19 (0·89–1·58) | 1·52 (1·42–1·62) | 0·83 (0·77–0·89) | ||
Chronic kidney Disease | 1·14 (0·74–1·75) | 1·44 (1·32–1·55) | 0·61 (0·53–0·69) | ||
Immunosuppressed | 0·99 (0·61–1·60) | 1·31 (1·14–1·50) | 0·88 (0·78–0·99) | ||
Obesity | 1·48 (0·92–2·41) | 1·25 (1·09–1·32) | 0·88 (0·80–0·97) | ||
Neurological Disease | 1·2 (0·82–1·75) | 1·5 (1·38–1·63) | 0·82 (0·76–0·89) | ||
Liver Disease | 1·1 (0·59–2·07) | 1·11 (0·87–1·41) | 0·79 (0·68–0·92) | ||
Asplenia | 1·36 (0·52–3·60) | 0·96 (0·75–1·23) | 0·9 (0·80–1·02) | ||
Urban-rural class | Conurbation | City and Town | 0·77 (0·60–0·98) | 0·99 (0·99–1·07) | 0·94 (0·91–0·98) |
Rural | 1·45 (1·07–1·97) | 1·16 (1·06–1·27) | 0·91 (0·87–0·96) | ||
NHS Region | Midlands and East | London | 0·66 (0·44–0·99) | 1·72 (1·54–1·92) | 0·67 (0·64–0·71) |
North | 0·64 (0·43–0·95) | 1·77 (1·62–1·94) | 0·81 (0·78–0·85) | ||
South | 0·75 (0·51–1·10) | 1·35 (1·23–1·48) | 0·74 (0·71–0·78) |