Table 3

Characteristics of Giardia positive and negative children returning faecal sample, Bergen, Norway 2005

n

Positive

n

Negative

P-value


Sex, n

6

483

0.22 F

Girls n (%)

1 (16.7)

236 (48.9)

Boys n (%)

5 (83.3)

247 (51.1)

Ethnical background, n

4

426

0.21P

European n (%)

3 (75.0)

390 (91.6)

African n (%)

0 (0.0)

5 (1.2)

Asian n (%)

0 (0.0)

14 (3.3)

Other n (%)

1 (25.0)

17 (4.0)

Travelled outside of Northern Europe last year, n

6

1 (16.7)

476

181 (38.0)

0.42 F

Number of people in the household (mean ± SE)

6

4.00 ± 0.26

481

3.99 ± 0.05

0.97 W

Giardiasis in the family, n (%)

6

1 (16.7)

471

54 (11.5)

0.52 F

Child treated for giardiasis, n (%)

6

0 (0.0)

474

10 (2.1)

1.00 F

Going to day care, n (%)

6

4 (66.7)

477

366 (76.7)

0.63 F

Siblings in day care, n (%)

6

3 (50.0)

472

155 (32.8)

0.40 F

Contacted/treated by doctor for gastrointestinal symptoms, n (%)

6

0 (0.0)

464

48 (10.3)

1.00 F

Drinking water, glass (mean ± SE)

6

2.50 ± 0.50

478

2.89 ± 0.07

0.53 W

Drinking milk, glass (mean ± SE)

6

2.33 ± 0.62

478

2.05 ± 0.06

0.60 W

Age at time of testing, months (mean ± SE)

6

34.33 ± 5.15

482

36.38 ± 0.74

0.76 W

Symptoms from the gastrointestinal tract1 (mean ± SE)

Abdominal pain

6

1.17 ± 0.17

475

1.41 ± 0.03

0.35 W

Nausea

6

1.00 ± 0.00

474

1.18 ± 0.02

0.27 W

Vomiting

6

1.00 ± 0.00

479

1.18 ± 0.02

0.26 W

Diarrhoea

6

1.50 ± 0.34

479

1.57 ± 0.03

0.63 W

Different odour from stools

6

1.17 ± 0.17

471

1.23 ± 0.02

0.83 W

Flatulence

6

1.33 ± 0.21

475

1.65 ± 0.03

0.30 W

Eructation

6

1.33 ± 0.21

474

1.34 ± 0.03

0.94 W


1 values from the questionnaire 1 = seldom/unanswered

2 = sometimes 3 = often

F = Fishers exact test (2-sided)

P = Pearson chi-square test (2-sided)

W = Wilcoxon- Mann-Whitney test

SE = Standard error

Characteristics of 489 children aged 0-5 years returning faecal sample in the City of Bergen, Norway 2005 according to result of a Giardia antigen test.

Mellingen et al. BMC Public Health 2010 10:163   doi:10.1186/1471-2458-10-163

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