Table 4.

Comparisons of symptom occurrence among cases 4 months before, during and 4 months after infection with C. hominis vs. C. parvum

Symptoms	Before illness					During illness					After illness
	C. hominis	C. parvum	aOR	p	95% CI	C. hominis	C. parvum	aOR	p	95% CI	C. hominis	C. parvum	aOR	p	95% CI
	n (%)	n (%)				n (%)	n (%)				n (%)	n (%)
Dizziness	7 (8)	16 (7)	0.56	0.297	0.19–1.65	22 (24)	58 (27)	*0.48	0.063	0.22–1.03	13 (14)	32 (15)	0.61	0.277	0.25–1.49
Headache	13 (14)	31 (14)	0.77	0.550	0.33–1.81	31 (34)	75 (35)	0.70	0.292	0.36–1.36	22 (24)	56 (26)	0.84	0.630	0.41–1.72
Joint pain	6 (7)	26 (12)	0.99	0.993	0.34–2.91	13 (14)	50 (23)	0.87	0.734	0.38–1.97	14 (15)	38 (18)	1.05	0.902	0.46–2.39
Fatigue	31 (34)	74 (34)	0.85	0.606	0.45–1.59	67 (73)	172 (80)	0.99	0.987	0.48–2.06	46 (50)	110 (51)	0.92	0.778	0.51–1.65
Weight loss	9 (10)	28 (13)	1.85	0.205	0.71–4.77	54 (59)	142 (66)	1.35	0.349	0.71–2.52	22 (24)	39 (18)	0.95	0.884	0.45–1.97
Diarrhoea	38 (41)	63 (29)	0.80	0.492	0.43–1.50	81 (88)	188 (87)	1.10	0.834	0.44–2.78	46 (50)	83 (38)	0.83	0.538	0.45–1.51
Loss of appetite	25 (27)	48 (22)	1.13	0.728	0.56–2.27	76 (83)	172 (80)	1.12	0.768	0.52–2.44	36 (39)	55 (26)	0.84	0.596	0.43–1.62
Abdominal pain	32 (35)	65 (30)	1.04	0.918	0.53–2.02	73 (79)	172 (80)	0.86	0.700	0.40–1.85	42 (46)	76 (35)	0.62	0.128	0.34–1.14
Eye pain	1 (1)	10 (5)	1.00	0.993	0.11–8.86	7 (8)	23 (11)	1.20	0.737	0.41–3.54	4 (4)	15 (7)	1.09	0.899	0.28–4.25
Vomiting	8 (9)	17 (8)	1.02	0.975	0.34–3.03	30 (33)	70 (32)	1.34	0.375	0.70–2.54	7 (8)	14 (7)	2.21	0.179	0.69–7.00

Number (n) of cases and percentage of the total number of cases (C. hominis = 92 and C. parvum = 216) reporting each symptom. Odds ratios (aOR) and corresponding 95% confidence intervals (CI) are adjusted for age, gender, study year and season

*Statistically significant when removing children under 5 years of age from the analysis (OR 0.43, 95% CI 0.19–0.95, p = 0.038)