Table 5.

Clinical features of Cryptosporidium-infection cases in the municipality of Skellefteå during December 2010 to May 2011

	Proportion with symptom (%)	95% CI (%)
Fatigue	78.5	72.4 – 84.7
Abdominal pain	73.3	66.8 – 79.8
Upset stomach	71.4	64.7 – 78.2
Diarrhoea
Watery	70.2	63.4 – 77.0
Bloody	0.9	0.0 – 2.5
Nausea	63.5	56.1 – 70.9
Headache	46.9	39.3 – 54.5
Vomiting	35.8	28.6 – 43.1
Fever >38 °C	36.5	28.2 – 42.8
Joint pain	27.4	20.4 – 34.4
Pain in eyes	14.6	9.1 – 20.1

CI confidence interval

Based on postal questionnaire