Table 1.
Socio-demographic characteristics, tobacco use and incident diagnoses of COVID-19 February 25–October 22, 2020, among clients of the public dental care in Stockholm Region.
| TOT-COHa N = 424,386 (%) |
REC-COHa N = 118,917 (%) |
|
|---|---|---|
| Sex | ||
| Male | 192,224 (45.3) | 53,330 (44.9) |
| Female | 232,162 (54.7) | 65,587 (55.2) |
| Age mean (SD) | 46.5 (15.8) | 47.7 (16.7) |
| Education | ||
| Compulsory (9 years) | 34,581 (8.2) | 9470 (8.0) |
| High school (12 years) | 142,866 (33.7) | 40,541 (34.1) |
| University (> 12 years) | 237,422 (55.9) | 65,474 (55.1) |
| Missing | 9517 (2.1) | 3432 (2.8) |
| Occupational risk for infection | ||
| Low | 256,169 (60.4) | 72,326 (60.8) |
| Moderate | 76,157 (17.9) | 20,831 (17.5) |
| High | 56,173 (13.2) | 15,491 (13.0) |
| Missing | 35,887 (8.5) | 10,269 (8.7) |
| Disposable yearly income in Swedish crowns, mean (SD) | 269,869.4 (408,014.9) | 270,076.2 (275,608.2) |
| Cohabitation | ||
| Yes | 329,668 (77.7) | 91,153 (76.7) |
| No | 89,399 (21.1) | 26,489 (22.3) |
| Missing | 5319 (1.2) | 1275 (1.0) |
| Country of birth | ||
| Sweden | 335,900 (79.2) | 95,528 (80.3) |
| Other Nordic countries | 11,838 (2.8) | 3558 (3.0) |
| Other countries | 68,863 (16.2) | 17,868 (15.0) |
| Missing | 7785 (1.8) | 1963 (1.7) |
| Current smoking | ||
| No | 386,746 (91.1) | 109,191 (91.8) |
| Yes (all) | 37,640 (8.9) | 9726 (8.2) |
| ≤ 10 cig/day | 24,071 (5.7) | 6181 (5.2) |
| 11–20 cig/day | 10,459 (2.5) | 2498 (2.1) |
| > 20 cig/day | 1455 (0.3) | 349 (0.3) |
| Missing | 2378 (0.6) | 919 (0.8) |
| Current use of snus | ||
| No | 373,328 (88.0) | 105,289 (88.5) |
| Yes (all) | 48,809 (11.5) | 13,481 (11.3) |
| < 1/2 can/day | 28,365 (6.7) | 7932 (6.7) |
| ½–1 cans/day | 17,919 (4.2) | 4777 (4.0) |
| > 1 cans/day | 2039 (0.5) | 507 (0.4) |
| Missing | 3640 (0.9) | 699 (0.6) |
| Previous diagnoses of tobacco-related diseases | 114,592 (27.0) | 35,532 (29.9) |
| Infection of SARS-CoV-2/COVID-19 | 6540 (1.5) | 1820 (1.5) |
| Hospital admissions with COVID-19 | 1411 (0.3) | 415 (0.4) |
| Intensive care for COVID-19 | 184 (0.04) | 51 (0.04) |
| Death with a diagnosis of COVID-19 | 205 (0.05) | 64 (0.05) |
aTOT-COH = Whole sample REC-COH = recent cohort, i.e., individuals accessing the dental clinics 7 months or less from the onset of the pandemic in Sweden (1st July 2019–31st January 2020).