Table 2.
Association of Swiss-SEP group with five outcomes related to SARS-CoV-2 surveillance and care
| Unadjusted IRR per Swiss-SEP group increase (95% CrI) | Adjusted IRR per Swiss-SEP group increase (95% CrI) | Adjusted IRR comparing highest and lowest Swiss-SEP group (95% CrI) | |
|---|---|---|---|
| Total tests* | |||
| Per population | 1·02 (1·01–1·04) | 1·02 (1·00–1·03) | 1·18 (1·02–1·36) |
| Positive tests | |||
| Per population | 0·99 (0·98–1·00) | 0·99 (0·98–1·01) | 0·95 (0·84–1·11) |
| Per total test* | 0·97 (0·97–0·98) | 0·97 (0·96–0·98) | 0·75 (0·69–0·81) |
| Hospitalisations | |||
| Per population | 0·94 (0·92–0·95) | 0·94 (0·92–0·96) | 0·56 (0·49–0·67) |
| Per total test* | 0·94 (0·92–0·95) | 0·92 (0·91–0·94) | 0·49 (0·43–0·56) |
| Per positive test | 0·96 (0·95–0·98) | 0·96 (0·95–0·97) | 0·68 (0·62–0·74) |
| ICU admissions | |||
| Per population | 0·92 (0·89–0·94) | 0·90 (0·87–0·93) | 0·39 (0·28–0·53) |
| Per total test* | 0·90 (0·87–0·93) | 0·90 (0·88–0·93) | 0·40 (0·31–0·53) |
| Per positive test | 0·93 (0·91–0·96) | 0·93 (0·91–0·96) | 0·54 (0·43–0·70) |
| Deaths | |||
| Per population | 0·96 (0·93–0·99) | 0·96 (0·92–1·01) | 0·71 (0·49–1·10) |
| Per total test* | 0·98 (0·94–1·01) | 0·96 (0·94–0·98) | 0·66 (0·57–0·82) |
| Per positive test | 0·97 (0·95–1·00) | 0·98 (0·97–1·00) | 0·86 (0·76–0·99) |
Three denominators were considered: population, total tests, and positive tests. CrI=credibility interval. IRR=incidence rate ratio. Swiss-SEP=Swiss neighbourhood index of socioeconomic position.
*
Data on total tests relate to the period May 23, 2020, to April 14, 2021, rather than the full study period from March 1, 2020, to April 14, 2021.