Table 3.

Symptoms, management, and consequences of illness during the Campylobacter outbreak in Askøy, by age

Age category (years)		All		0–24		25–54		≥ 55		Missing		x2
		n	%	n	%	n	%	n	%	n	%	p**
Total		749	100	86	11.5*	442	59.0*	163	21.8*	58	7.7*
Symptoms
	Loose stools	679	90.7	77	89.5	408	92.3	144	88.3	50	86.2	0.73
	Diarrhea	666	88.9	70	81.4	408	92.3	138	84.7	50	86.2	0.04
	Bloody stools	106	14.2	22	25.6	65	14.7	14	8.6	5	8.6	< 0.01
	Nausea	554	74.0	71	82.6	321	72.6	120	73.6	42	72.4	0.12
	Vomit	180	24.0	31	36.0	93	21.0	40	24.5	16	27.6	0.01
	Abdominal pain	669	89.3	78	90.7	400	90.5	142	87.1	49	84.5	0.94
	Fever	478	63.8	69	80.2	271	61.3	107	65.6	31	53.4	< 0.01
	Joint pain	376	50.2	40	46.5	225	50.9	84	51.5	27	46.6	0.22
	Tiredness	683	91.2	82	95.3	396	89.6	151	92.6	54	93.1	< 0.01
Illness duration (days)												0.43
	0–3	120	16.0	13	15.1	75	17.0	16	9.8	16	27.6
	4–7	316	42.2	40	46.5	196	44.3	53	32.5	27	46.6
	8–14	171	22.8	22	25.6	108	24.4	33	20.2	8	13.8
	≥ 15	33	4.4	6	7.0	16	3.6	10	6.1	1	1.7
	Missing	109	14.6	5	5.8	47	10.6	51	31.3	6	10.3
Consulted doctor		203	27.1	31	36.0	109	24.7	53	32.5	10	17.2	0.01
Hospitalized		33	4.4	3	3.5	16	3.6	12	7.4	2	3.4	0.12
Absence school/work		414	55.3	59	68.6	281	63.6	46	28.2	28	48.3	< 0.01
Medication
	None	184	24.6	21	24.4	109	24.7	42	25.8	12	20.7	0.03
	Antibiotics	21	2.8	2	2.3	10	2.3	8	4.9	1	1.7	0.12
	Loperamide	93	12.4	7	8.1	49	11.1	35	21.5	2	3.4	< 0.01
	Tramadol	13	1.7	1	1.2	5	1.1	6	3.7	1	1.7	0.10
	Codeine + paracetamol	41	5.5	3	3.5	24	5.4	8	4.9	6	10.3	0.39
	Paracetamol	470	62.8	59	68.6	281	63.6	92	56.4	38	65.5	0.58
	NSAIDs	238	31.8	41	47.7	156	35.3	21	12.9	20	34.5	< 0.01
	Probiotics	167	22.3	17	19.8	101	22.9	35	21.5	14	24.1	0.02

Distribution within characteristics is given by column unless stated by *

*Distribution by row

^**p value from Pearson’s x²-test of association calculated from cross tables not including missing values