Table 1. Descriptive characteristics (n (%) or stated otherwise) of the total study population and those who did and did not provide a blood sample.
| Population characteristics | total | with blood | without blood |
| Number of students | 960 | 674 | 286 |
| Female | 771 (80.3%) | 540 (80.1%) | 231 (80.8%) |
| Age, AMa (SDb) | 23.7 (3.7) | 23.7 (3.6) | 23.9 (3.8) |
| Weight (kg), AMa (SDb) | 68.5 (11.2) | 68.3 (10.7) | 69.1 (12.3) |
| Height (cm), AMa (SDb) | 174.6 (8.3) | 174.4 (8.2) | 175.2 (8.5) |
| Current smoker | 103 (10.7%) | 69 (10.2%) | 34 (11.8%) |
| Past Smoker | 86 (8.9%) | 60 (8.9%) | 26 (9.0%) |
| Regular contactc with animals besides the study: | |||
| Horses | 645 (67.2%) | 451 (66.9%) | 194 (67.8%) |
| Cows | 312 (32.5%) | 216 (32.0%) | 96 (33.6%) |
| Pigs | 136 (14.2%) | 94 (13.9%) | 42 (14.7%) |
| Sheep | 275 (28.6%) | 192 (28.5%) | 83 (29.0%) |
| Poultry | 307 (32.0%) | 220 (32.6%) | 87 (30.4%) |
| Goats | 232 (24.2%) | 166 (24.6%) | 66 (23.1%) |
| Dogs | 717 (74.7%) | 507 (75.2%) | 210 (73.4%) |
| Cats | 712 (74.2%) | 496 (73.6%) | 216 (75.5%) |
| Rodents | 715 (74.5%) | 505 (74.9%) | 210 (73.4%) |
| Birds | 394 (41.0%) | 283 (42.0%) | 111 (38.8%) |
| Job with previous or current regular animal contact | 439 (45.7%) | 307 (45.5%) | 132 (46.2%) |
| Growing up in rural area (village)d | 379 (39.5%) | 282 (41.8%) | 97 (33.9%) |
| Farm childhoode | 130 (13.5%) | 100 (14.8%) | 30 (10.5%) |
| Self reported zoonosis during VMf | 190 (19.8%) | 132 (19.6%) | 58 (20.3%) |
| Self reported Q fever | 0 (0%) | 0 (0%) | 0 (0%) |
| Positive Q fever status | 126 (18.7%) |
a
AM, Arithmetic Mean.
b
SD, Standard Deviation.
c
Previous or current regular contact (>once a week).
d
Chi-square between providing and not-providing blood borderline significant with p = 0.07.
e
Chi-square between providing and not-providing blood borderline significant with p = 0.08.
f
VM, veterinary medicine.