TABLE 2: Influence of professional profile on seroconversion in school teachers and employees during the first wave of the COVID-19 pandemic in the city of Fortaleza, Brazil.
| Professional profile | Univariable Analysis | Multivariable logistic regression | ||||
|---|---|---|---|---|---|---|
| Total | COVID-19 IgG | p-value | Adjusted OR (95%CI) | p-value | ||
| Negative | Positive | |||||
| Function | ||||||
| Teacher | 880 (46.3%) | 815 (46.6%) | 65 (42.8%) | 0.363 | - | - |
| Collaborator | 1021 (53.7%) | 934 (53.4%) | 87 (57.2%) | RC | - | |
| Shift work | - | |||||
| Morning | 1615 (85.0%) | 1494 (85.4%) | 121 (79.6%) | 0.054 | 0.66 (0.31-1.38) | 0.268 |
| Afternoon | 1358 (71.4%) | 1252 (71.6%) | 106 (69.7%) | 0.629 | - | - |
| Night | 351 (18.5%) | 323 (18.5%) | 28 (18.4%) | 0.989 | RC | - |
| Works quantity shifts | - | - | ||||
| <1 | 2 (0.1%) | 2 (0.1%) | 0 (0.0%) | 0.311 | - | - |
| 1 | 610 (32.1%) | 551 (31.5%) | 59 (38.8%) | - | - | |
| 2 | 1153 (60.7%) | 1070 (61.2%) | 83 (54.6%) | - | - | |
| 3 | 136 (7.2%) | 126 (7.2%) | 10 (6.6%) | RC | - | |
| Time spent teaching in the classroom (in years)€ | - | - | ||||
| < 6 | 199 (23.0%) | 186 (23.2%) | 13 (20.3%) | 0.092 | RC | - |
| 6-10 | 238 (27.5%) | 221 (27.6%) | 17 (26.6%) | - | - | |
| 11-20 | 247 (28.5%) | 234 (29.2%) | 13 (20.3%) | - | - | |
| >20 | 182 (21.0%) | 161 (20.1%) | 21 (32.8%) | 0.99 (0.44-2.22) | 0.974 | |
| Transportation used for work | - | - | ||||
| Bicycle | 52 (2.7%) | 46 (2.6%) | 6 (3.9%) | 0.235 | - | - |
| Hitchhiking with co-workers | 87 (4.6%) | 81 (4.6%) | 6 (3.9%) | - | - | |
| Car alone | 873 (45.9%) | 814 (46.6%) | 59 (38.8%) | RC | - | |
| Motorcycle with co-worker | 26 (1.4%) | 24 (1.4%) | 2 (1.3%) | - | - | |
| Motorcycle alone | 101 (5.3%) | 87 (5.0%) | 14 (9.2%) | - | - | |
| Collective Transportation | 606 (31.9%) | 553 (31.6%) | 53 (34.9%) | - | - | |
| Other | 155 (8.2%) | 143 (8.2%) | 12 (7.9%) | - | - | |
| Professional performance | - | - | ||||
| Preschool | 204 (23.2%) | 186 (22.8%) | 18 (27.7%) | 0.371 | RC | - |
| Elementary I | 301 (34.2%) | 274 (33.6%) | 27 (41.5%) | 0.195 | 1.23 (0.65-2.30) | 0.523 |
| Fundamental II | 211 (24.0%) | 200 (24.5%) | 11 (16.9%) | 0.166 | 0.89 (0.40-1.98) | 0.767 |
| High School | 188 (21.4%) | 176 (21.6%) | 12 (18.5%) | 0.553 | - | - |
| Higher Education | 209 (23.8%) | 197 (24.2%) | 12 (18.5%) | 0.296 | - | - |
| Post-graduation | 72 (8.2%) | 67 (8.2%) | 5 (7.7%) | 0.881 | - | - |
| Technical courses | 19 (2.2%) | 18 (2.2%) | 1 (1.5%) | 0.721 | - | - |
| Was excluded from face-to-face activities in the pandemic | - | - | ||||
| No | 493 (25.9%) | 460 (26.3%) | 33 (21.7%) | 0.214 | RC | - |
| Yes | 1407 (74.1%) | 1288 (73.7%) | 119 (78.3%) | - | - | |
| Has health insurance | 1462 (76.9%) | 1356 (77.6%) | 106 (69.7%) | 0.028 | 0.45 (0.18-1.17) | 0.102 |
| Practices physical activity | ||||||
| No | 930 (49.0%) | 843 (48.3%) | 87 (57.2%) | 0.034 | 0.50 (0.28-0.92) | 0.025 |
| Yes | 969 (51.0%) | 904 (51.7%) | 65 (42.8%) | RC | ||
Subtitle: *p<0.05, Fisher exact test or Pearson chi-square test; ¥ Not everyone provided this information; OR: odds ratio; 95% CI: 95% confidence interval of adjusted OR; RC: reference category of multivariable analysis.