Table 1 Child characteristics, median and IQR or frequency per country and odds ratio’s or risk ratio's

Age (years)^a,f

1

(1–2)

2

(1–2)

1.35

1.07–1.71

Days per week attending the DCC^a,f

4

(3–5)

2

(1–3)

0.03

0.02–0.04

n

(%)

n

(%)

Risk ratio

95% CI (wald)

Gender (female)^a,f

232

(52.5)

243

(48.8)

1.08

0.95–1.23

Antimicrobial use (< 6 months)^a,f

232

(52.5)

104

(20.9)

0.40

0.33–0.48

Hospital admission (< 6 months)^b,g

80

(18.2)

33

(6.6)

0.37

0.25–0.54

Parental occupation

 At least one parent is working in health care^c,h

124

(27.7)

138

(27.7)

1.0

0.81–1.23

Animal contact (< 6 months)^d,f

322

(73.4)

423

(84.9)

1.16

1.08–1.24

 Pet^e,f

300

(68.5)

368

(73.7)

1.08

0.99–1.17

 Zoo^e,f

113

(25.8)

213

(42.8)

1.66

1.37–2.00

 Livestock^e,f

24

(5.5)

58

(11.7)

2.13

1.34–3.36

Travel abroad (< 6 months)^b,f

242

(55.0)

277

(55.6)

1.01

0.90–1.13

 Africa^b,f

9

(2.1)

8

(1.6)

0.79

0.31–2.02

 Asia^b,f

6

(1.4)

4

(0.8)

0.59

0.17–2.07

 Europe^b,f

229

(52.1)

261

(52.4)

1.00

0.89–1.14

 Latin-America^b,f

0

(0.0)

10

(2.0)

0.98

0.97–0.99

 North-America^b,f

6

(1.4)

2

(0.4)

0.29

0.06–1.45