CD4 and infection: CD4 count ≤ 50 cells/mm3 showed significant positive associations with infection with any parasite (OR = 3.5, 95% CI = 1.4–8.6), with three parasite species (OR = 2.9, 95% CI = 1.1–7.5), with any protozoa (OR = 2.4, 95% CI = 1.2–4.9), with any helminth (OR = 2.0, 95% CI = 1.0–3.9) and with O. viverrini (OR = 2.1, 95% CI = 1.0–4.3).