Table 1 Baseline characteristics of the study population
Total (N = 283) | Face shield + surgical face mask group (N = 141) | Surgical face mask group (N = 142) | |
|---|---|---|---|
Sociodemographic characteristics | |||
Sex | |||
Female, n (%) | 140 (49.5) | 68 (48.2) | 72 (51.4) |
Age | |||
Median (IQR) | 36 (30–48) | 36 (29–50) | 36 (30–47) |
Socioeconomic stratuma | |||
Very low | 1 | 1 (0.7) | 0 (0.0) |
Low | 19 | 8 (5.6) | 11 (7.7) |
Middle-low | 108 | 53 (37.6) | 55 (38.7) |
Middle | 108 | 52 (36.9) | 56 (39.5) |
Middle-high | 29 | 17 (12.1) | 12 (8.5) |
High | 18 | 10 (7.1) | 8 (5.6) |
Type of health insurance | |||
Contributive, special, exception | 267 | 131 (92.9) | 136 (95.7) |
No affiliated, no determined | 11 | 7 (4.9) | 4 (2.8) |
Subsidiary | 5 | 3 (2.1) | 2 (1.4) |
Number cohabiting | |||
≤ 3 | 189 | 90 (63.8) | 99 (66.7) |
> 3 | 94 | 51 (36.2) | 43 (30.3) |
Vulnerability index | |||
Low | 4 | 3 (2.1) | 1 (0.7) |
Middle-low | 5 | 4 (2.8) | 1 (0.7) |
Middle | 110 | 51 (36.2) | 59 (41.5) |
Middle-high | 104 | 57 (40.4) | 47 (33.1) |
High | 60 | 26 (18.4) | 34 (23.9) |
Occupation, n(%) | |||
Office employees | 164 (57.9) | 79 (56.0) | 85 (59.9) |
Public transportation drivers | 28 (9.9) | 12 (8.5) | 16 (11.3) |
Salesperson/cashiers/shop employees | 18 (6.4) | 12 (8.5) | 6 (4.2) |
Non-hospital health care workers | 16 (5.6) | 9 (6.4) | 7 (4.9) |
Workers with a high load of physical activity (builders, mechanics, physical trainers) | 12 (4.2) | 3 (2.1) | 9 (6.3) |
Teachers (including school and university) | 10 (3.5) | 8 (5.7) | 2 (1.4) |
Journalists | 8 (2.8) | 5 (3.5) | 3 (2.1) |
Deliverymen/couriers | 5 (1.7) | 4 (2.3) | 1 (0.7) |
Others (hairdressers, farmers, armed forces, cooks, caregivers, domestic employees) | 22 (7.7) | 9 (6.4) | 13 (9.1) |