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. 2018 Aug 30;11:625. doi: 10.1186/s13104-018-3721-y

Table 2.

Symptoms reported at follow-up by questionnaire and association with case status, Sweden 2013

Symptom	Total			0–5 years	6–15 years	16–40 years	41–65 years	> 65 years
	n = 559			n = 48	n = 54	n = 114	n = 200	n = 143
	Cases n (%)	Non-cases n (%)	OR^a (95% CI)	OR^b (95% CI)	OR^b (95% CI)	OR^b (95% CI)	OR^b (95% CI)	OR^b (95% CI)
Weight loss	9 (4)	14 (4)	0.9 (0.4–2.2)	0.6 (0.1–5.6)	–	1.7 (0.4–8.4)	0.9 (0.2–3.8)	–
Watery diarrhea	36 (17)	26 (8)	2.0 (1.1–3.4)	1.4 (0.3–5.5)	4.5 (0.4–44.5)	1.6 (0.6–4.2)	2.8 (1.0–7.5)	1.3 (0.1–13.1)
Diarrhea	53 (25)	45 (13)	1.9 (1.7–2.9)	0.9 (0.3–3.3)	0.9 (0.2–4.1)	2.4 (1.0–5.8)	2.1 (1.0–4.6)	3.9 (1.1–14.3)
Abdominal pain	61 (29)	43 (13)	2.3 (1.5–3.7)	4.3 (0.9–22)	1.4 (0.4–4.5)	3.1 (1.3–7.1)	1.8 (0.8–4.1)	4.3 (1.2–14.7)
Stiff joints	44 (21)	38 (11)	2.8 (1.7–4.6)	–	–	4.0 (1.1–14.1)	2.1 (1.1 –4.4)	3.1 (1.2–7.9)
Joint pain	48 (23)	44 (13)	2.2 (1.5–3.7)	–	0.5 (0.1–2.5)	13.2 (2.8–61.9)	1.8 (0.9–3.6)	2.1 (0.8–5.5)
Loss of appetite	30 (14)	39 (11)	1.0 (0.6–1.7)	0.4 (0.1–1.7)	1.3 (0.3–6.7)	1.5 (0.6–3.7)	1.0 (0.4–2.6)	–
Fatigue	80 (38)	84 (25)	1.7 (1.1–2.5)	1.2 (0.3–4.4)	0.8 (0.2–2.8)	3.0 (1.4–6.5)	2.0 (1.1–3.7)	0.8 (0.3–2.5)
Nausea	60 (29)	49 (15)	2.0 (1.3–3.0)	1.2 (0.3–4.7)	0.8 (0.2–3.2)	2.7 (1.2–6.0)	2.0 (0.9–4.4)	2.2 (0.5–9.9)
Headache	95 (45)	82 (24)	2.4 (1.7–3.5)	3 (0.5–17.1)	4 (1.3–13.1)	3.2 (1.4–7.3)	2.4 (1.3–4.4)	1.0 (0.3–3.0)
Joint discomfort	40 (19)	44 (13)	2.0 (1.2–3.3)	–	–	6.1 (1.8–20.3)	1.6 (0.8–3.3)	1.7 (0.6–4.5)
Ocular pain	38 (18)	42 (12)	1.5 (0.9–2.4)	0.7 (0.1–5.1)	1.1 (0.2–4.7)	1.4 (0.6–3.7)	1.4 (0.6–3.1)	2.8 (0.9–8.8)
Swollen joints	13 (6)	20 (6)	1.2 (0.5–2.6)	–	–	7.7 (0.9–68.0)	0.5 (0.1–1.5)	2.4 (0.6–9.1)
Vomiting	34 (16)	26 (8)	1.6 (0.9–2.8)	1.0 (0.3–3.4)	1.7 (0.3–10.3)	1.5 (0.6–3.7)	1.5 (0.4–5.5)	–

Italics indicates significant at 0.05 level

^aAdjusted for age and sex

^bAdjusted for sex