Age, years, median (range)
|
30.5 (18.0–58.0)
|
30.5 (18.5–51.6)
|
31.1 (21.5–58.0)
|
26.7 (18.0–51.9)
|
0.52
|
Female sex
|
50 (84.7)
|
14 (82.4)
|
17 (89.5)
|
19 (86.4)
|
0.45
|
Profession
|
Nurse
|
49 (83.1)
|
13 (76.5)
|
15 (79.0)
|
21 (95.5)
|
0.27
|
Physician
|
9 (15.3)
|
3 (17.7)
|
4 (21.1)
|
1 (4.6)
|
Other
|
1 (1.7)
|
1 (5.9)
|
0 (0)
|
0 (0)
|
Charlson comorbidity index, median (range)
|
0 (0–1)
|
0 (0–1)
|
0 (0–0)
|
0 (0–1)
|
0.88
|
Myocardial infarction
|
0 (0)
|
0 (0)
|
0 (0)
|
0 (0)
|
n.a.
|
Congestive cardiac insufficiency
|
0 (0)
|
0 (0)
|
0 (0)
|
0 (0)
|
n.a.
|
Peripheral vascular disease
|
0 (0)
|
0 (0)
|
0 (0)
|
0 (0)
|
n.a.
|
Chronic pulmonary disease
|
2 (3.4)
|
1 (5.9)
|
0 (0)
|
1 (4.6)
|
0.59
|
Conjuctive tissue disease
|
0 (0)
|
0 (0)
|
0 (0)
|
0 (0)
|
n.a.
|
Diabetes without complications
|
0 (0)
|
0 (0)
|
0 (0)
|
0 (0)
|
n.a.
|
Peptic ulcer disease
|
1 (1.7)
|
0 (0)
|
0 (0)
|
1 (4.6)
|
0.44
|
Chronic disease of the liver or cirrhosis
|
0 (0)
|
0 (0)
|
0 (0)
|
0 (0)
|
n.a.
|
Hemiplegia
|
0 (0)
|
0 (0)
|
0 (0)
|
0 (0)
|
n.a.
|
Moderate or severe kidney disease
|
0 (0)
|
0 (0)
|
0 (0)
|
0 (0)
|
n.a.
|
Diabetes with chronic complications
|
0 (0)
|
0 (0)
|
0 (0)
|
0 (0)
|
n.a.
|
Solid organ malignancy
|
0 (0)
|
0 (0)
|
0 (0)
|
0 (0)
|
n.a
|
Leukemia
|
0 (0)
|
0 (0)
|
0 (0)
|
0 (0)
|
n.a.
|
Lymphoma
|
0 (0)
|
0 (0)
|
0 (0)
|
0 (0)
|
n.a.
|
Moderate or severe liver disease
|
0 (0)
|
0 (0)
|
0 (0)
|
0 (0)
|
n.a.
|
Malignant tumor, metastasis
|
0 (0)
|
0 (0)
|
0 (0)
|
0 (0)
|
n.a.
|
AIDS
|
0 (0)
|
0 (0)
|
0 (0)
|
0 (0)
|
n.a.
|
Dementia
|
0 (0)
|
0 (0)
|
0 (0)
|
0 (0)
|
n.a.
|
Household crowding index, median (range)
|
1.3 (0.5–3)
|
1.3 (1–2.5)
|
1.3 (1–2)
|
1.3 (0.5–3)
|
0.99
|
Children (< 18 years) in household
|
11 (18.6)
|
5 (22.7)
|
1 (5.3)
|
5 (22.7)
|
0.24
|