Table 1.
Demographics of hotel staff members in this study.
| Characteristics |
No. (%) unless otherwise specified |
|||
|---|---|---|---|---|
| Total | Hotels A + B | Hotel C | p value | |
| (n = 136) | (n = 90) | (n = 46) | (Hotels A + B vs. C) | |
| Age – median years (range) | 49.5 (24–70) | 50 (24–66) | 48 (27–70) | 0.12 |
| Sex – male (%) | 76 (55.9) | 52 (57.8) | 24 (52.2) | 0.59 |
| Smoker (%) | 45 (33.1) | 28 (31.1) | 17 (37.0) | 0.56 |
| Comorbidity: | ||||
| No comorbidites | 86 (63.2) | 54 (60.0) | 32 (69.6) | 0.35 |
| Hypertension (%) | 32 (23.5) | 24 (26.7) | 8 (17.4) | |
| Diabetes mellitus (%) | 10 (7.4) | 6 (6.7) | 4 (8.7) | |
| Liver disease (%) | 6 (4.4) | 5 (5.6) | 1 (2.2) | |
| Heart disease (%) | 5 (3.7) | 4 (4.4) | 1 (2.2) | |
| Lung disease (%) | 4 (2.9) | 4 (4.4) | 0 (0) | |
| Renal disease (%) | 1 (0.7) | 1 (1.1) | 0 (0) | |
| Others (%) | 11 (8.1) | 10 (11.1) | 1 (2.2) | |
| Work nature: | ||||
| Housekeeping | 42 | 30 | 12 | |
| Clerical work | 30 | 17 | 13 | |
| Engineering | 20 | 11 | 9 | |
| Concierge | 13 | 8 | 5 | |
| Security | 12 | 11 | 1 | |
| Kitchen | 6 | 5 | 1 | |
| Cleaning | 5 | 3 | 2 | |
| Linen room | 3 | 2 | 1 | |
| Management | 2 | 1 | 1 | |
| Meal delivery | 1 | 1 | 0 | |
| Restaurant | 1 | 1 | 0 | |
| Accounting | 1 | 0 | 1 | |
| Exposure to guests under quarantine: | ||||
| No exposure | 63 (46.3) | 36 (40.0) | 27 (58.7) | 0.04* |
| Face-to-face exposure (within 2 m) | 32 (23.5) | 24 (26.7) | 8 (17.4) | |
| Stayed in the same room | 8 (5.9) | 7 (7.8) | 1 (2.2) | |
| Contact with items which have been touched/used by quarantined guests | 58 (42.6) | 42 (46.7) | 16 (34.8) | |
| Vaccination status | ||||
| Any COVID-19 vaccine (≥one dose) | 57 (41.9) | 31 (34.4) | 26 (56.5) | 0.02* |
| BNT162b2 (≥one dose) | 25 (18.4) | 11 (12.2) | 14 (30.4) | |
| CoronaVac (≥one dose) | 32 (23.5) | 20 (22.2) | 12 (26.1) | |
| Any COVID-19 vaccine (2 doses with last dose at least 14 days before joining study) | 40 (29.4) | 23 (25.6) | 17 (37.0) | |
| BNT162b2 (2 doses with last dose at least 14 days before joining study) | 13 (9.6) | 6 (6.7) | 7 (15.2) | |
| CoronaVac (2 doses with last dose at least 14 days before joining study) | 27 (19.9) | 17 (18.9) | 10 (21.7) | |