TABLE 2.
Baseline characteristics and PCR positivity.
| Positive PCR |
Negative PCR |
|||
| Total | n | n | p | |
| Sex – no. (%) | 850 | 221 | 629 | |
| Female | 571 | 133 (60.2) | 438 (69.6) | 0.010 |
| Male | 279 | 88 (39.8) | 191 (30.4) | |
| Personnel working in other hospitals – no. (%) | 736 | 199 | 537 | |
| Yes | 71 | 14 (7.0) | 57 (10.6) | 0.144 |
| No | 665 | 185 (93.0) | 480 (89.4) | |
| Personnel who live with someone who works in an other hospital – no. (%) | 735 | 198 | 537 | |
| Yes | 153 | 30 (15.2) | 123 (22.9) | 0.022 |
| No | 582 | 168 (84.8) | 414 (77.1) | |
| Personnel who live with someone who works at the HIMFG – no. (%) | 734 | 198 | 536 | |
| Yes | 210 | 50 (25.3) | 160 (29.9) | 0.221 |
| No | 524 | 148 (74.7) | 375 (70.0) | |
| Comorbidities– no. (%) | 802 | 221 | 581 | |
| Overweight | 296 | 87 (39.4) | 209 (36.0) | 0.079 |
| Obesity | 220 | 59 (26.7) | 161 (27.7) | 0.737 |
| High blood pressure | 61 | 21 (9.5) | 40 (6.9) | 0.124 |
| DM | 24 | 12 (5.4) | 12 (2.1) | 0.007 |
| COPD or asthma | 43 | 11 (5.0) | 32 (5.5) | 0.938 |
| Cardiovascular disease | 9 | 1 (0.5) | 8 (1.4) | 0.304 |
| Autoimmune disease | 9 | 2 (0.9) | 7 (1.2) | 0.790 |
| Smoking | 61 | 11 (5.0) | 50 (8.6) | 0.137 |
| Others | 79 | 17 (7.7) | 62 (10.7) | 0.334 |
| Job position – no. (%) | 848 | 221 | 627 | |
| Nurses | 304 | 87 (39.4) | 217 (34.6) | 0.205 |
| Physicians | 76 | 16 (7.2) | 60 (9.6) | 0.297 |
| Medicine residents | 212 | 40 (18.1) | 172 (27.4) | 0.006 |
| Stretcher bearers and messengers | 15 | 6 (2.7) | 9 (1.4) | 0.215 |
| Cleaning and maintenance staff | 50 | 15 (6.8) | 35 (5.6) | 0.513 |
| Laboratory workers | 22 | 8 (3.6) | 14 (2.2) | 0.265 |
| Administrators | 90 | 25 (11.3) | 65 (10.4) | 0.695 |
| Dietitians and nutritionists | 36 | 11 (5.0) | 25 (4.0) | 0.530 |
| Security personnel | 6 | 3 (1.4) | 3 (0.5) | 0.382 |
| Inhalotherapists | 12 | 6 (2.7) | 6 (1.0) | 0.057 |
| Psychologists | 14 | 2 (0.9) | 12 (1.9) | 0.481 |
| Imageologists | 5 | 1 (0.5) | 4 (0.6) | 0.842 |
| Radiotherapists | 1 | 1 (0.5) | 0 (0.0) | 0.585 |
| Others | 5 | 0 (0.0) | 5 (0.8) | 0.412 |
PCR, polymerase chain reaction; no., number; HIMFG, Hospital Infantil de México Federico Gómez; DM, diabetes mellitus; COPD, chronic obstructive pulmonary disease.