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Table 1 Demographic characteristics of healthcare workers by tobacco/nicotine use status (n = 4040)

From: SARS-Co-V2 infection in never, former, and current tobacco/nicotine users: a cohort study of 4040 Egyptian healthcare workers

  Tobacco/nicotine use status χ2 p-valuea
Total Never Former Current
N = 4040 n = 3482 n = 79 n = 479
n (%) n (%) n (%) n (%)
Age
 18–24 603 (14.9) 510 (14.6) 11 (13.9) 82 (17.1) 1.646 0.200
 25–29 1279 (31.7) 1117 (32.1) 23 (29.1) 139 (29.0)
 30–39 1057 (26.2) 892 (25.6) 22 (27.8) 143 (29.9)
 40–49 700 (17.3) 607 (17.4) 15 (19.0) 78 (16.3)
  ≥ 50 401 (9.9) 356 (10.2) 8 (10.1) 37 (7.7)
Gender
 Female 2486 (61.5) 2456 (70.5) 8 (10.1) 22 (4.6) 839.302 < 0.001
 Male 1554 (38.5) 1026 (29.5) 71 (89.9) 457 (95.4)
Governorate of residence
 Cairo 3062 (75.8) 2714 (77.9) 55 (69.6) 292 (61.0) 67.789 < 0.001
 Outside Cairo 978 (24.2) 768 (22.1) 24 (30.4) 187 (39.0)
Urban/rural residence
 Urban 3543 (87.7) 3119 (89.6) 64 (81.0) 360 (75.2) 84.328 < 0.001
 Rural 497 (12.3) 363 (10.4) 15 (19.0) 119 (24.8)
Marital status
 Not married 1865 (46.2) 1629 (46.8) 37 (46.8) 199 (41.5) 4.446 0.035
 Married 2175 (53.8) 1853 (53.2) 42 (53.2) 280 (58.5)
Education
 University/higher 2122 (52.5) 1912 (54.9) 41 (51.9) 169 (35.3) 83.848 < 0.001
 Secondary/equivalent 1551 (38.4) 1307 (37.5) 27 (34.2) 217 (45.3)
 Primary/preparatory 238 (5.9) 159 (4.6) 8 (10.1) 71 (14.8)
 Less than primary 129 (3.2) 104 (3.0) 3 (3.8) 22 (4.6)
Occupation
 Physician 1577 (39.0) 1433 (41.2) 34 (43.0) 110 (23.0) 10.528 0.001
 Nurse 1598 (39.6) 1398 (40.1) 21 (26.6) 179 (37.4)
 Non-clinical care 865 (21.4) 651 (18.7) 24 (30.4) 190 (39.7)
Returned for Follow up 2355 (58.3) 2049 (58.8) 42 (53.2) 264 (55.1) 3.282 0.194
  1. a Chi-squared test or Fisher’s Exact test