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Table 3 Species-specific pooled prevalence estimates for IPIs among intellectually disabled individuals in Iran, 2020

From: Intestinal parasites among intellectually disabled individuals in Iran: a systematic review and meta-analysis

Parasite No. of studies Pooled prevalence estimates Heterogeneity
Sample size Positives Prevalence (95% CI) I2 (%) p
Protozoa
 Entamoeba coli 13 2829 495 16.2 (10.3–22.0) 96.4  < 0.001
 Blastocystis spp. 10 1900 248 12.2 (7.2–17.2) 94.8  < 0.001
 Giardia duodenalis 12 2566 329 11.9 (7.4–16.3) 94.4  < 0.001
 Iodamoeba butschlii 8 1868 84 3.9 (2.2–5.6) 76.1  < 0.001
 Chilomastix mesnili 7 1734 84 3.6 (1.5–5.7) 92.2  < 0.001
 Endolimax nana 6 1370 51 2.9 (0.9–5.0) 88.0  < 0.001
 Entamoeba histolytica/dispar 7 1830 69 2.6 (1.0–4.2) 89.3  < 0.001
 Dientamoeba fragilis 1 243 4
 Entamoeba hartmanni 1 243 58
Helminths
 Enterobius vermicularis 8 1686 234 11.3 (6.3–16.3) 97.5  < 0.001
 Strongyloides stercoralis 5 1103 112 10.9 (5.0–16.9) 95.6  < 0.001
 Hymenolepis nana 4 847 33 2.8 (0.4–5.2) 83.7 < 0.001
 Trichuris trichiura 4 984 24 2.0 (0.7–3.2) 52.2 0.09
 Ascaris lumbricoides 2 588 7 1.2 (0.3–2.1)
 Dicrocoelium dendriticum 2 599 28 0.9 (0.1–1.6)
 Taenia spp. 2 671 3 0.4 (0.0–0.9)
 Trichostrongylus spp. 2 599 3 0.4 (0.1–0.9)
 Hookworms 1 330 1
  1. CI: Confidence interval; I2: Inverse variance index