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Table 1 List and characteristics of the 41 eligible studies

From: Prevalence and distribution of soil-transmitted helminth infections in Nigerian children: a systematic review and meta-analysis

Study ID Year of study State Region Study setting Sample size Cases Prevalence (%) 95% CI
[57] 2011 Rivers SSR School-based 3826 1050 27.4 26.0–28.9
[58] 2012/2013 Kwara NCR School-based 1017 229 22.5 20.0–25.2
[59] 1989 Kwara NCR Community-based 907 797 87.9 85.6–89.9
[60] 2002 Ogun SWR School-based 1253 1129 90.1 88.3–91.7
[61] 2006 Lagos SWR School-based 1177 579 49.2 46.3–52.1
[62] 2005/2006 Ogun SWR School-based 1059 872 82.3 79.9–84.6
[63] 2007 Cross River SSR Community-based 350 174 49.7 44.4–55.1
[64] 1985 Rivers SSR Community-based 1062 1020 96.1 94.7–97.1
[65] 2011 Anambra SER School-based 200 80 40.0 33.2–47.2
[66] 2014 Kwara NCR School-based 304 54 17.8 13.6–22.5
[67] 1980 Lagos SWR School-based 5595 4241 75.8 74.7–76.9
[68] 2008 Nasarawa NCR School-based 480 314 65.4 61.0–69.7
[69] 2004/2005 Ogun SWR School-based 232 112 48.3 41.7–54.9
[70] 1993 Anambra SER School-based 1536 775 50.5 47.9–53.0
[71] 1987 Oyo SWR School-based 766 678 88.5 86.0–90.7
[72] 2012 Kano NWR School-based 570 95 16.7 13.7–20.0
[73] 2005 Osun SWR Community-based 369 48 13.0 9.8–16.9
[74] 2006/2007 Osun SWR Community-based 1228 684 55.7 52.9–58.5
[75] 2005/2006 Delta SSR School-based 1200 960 80.0 77.6–82.2
[76] 2002 Kaduna NWR School-based 800 86 10.8 8.7–13.1
[77] 2011 Abuja NCR School-based 220 90 40.9 34.4–47.7
[78] 2011 Edo SSR Community-based 140 29 20.7 14.3–28.4
[79] 2008/2009 Edo SSR Hospital-based 310 170 54.8 49.1–60.5
[80] 2012 Delta SSR School-based 200 117 58.5 51.3–65.4
[81] 2007 Anambra SER School-based 514 275 53.5 49.1–57.9
[82] 2012 Imo SER School-based 284 88 31.0 25.7–36.7
[83] 2000 Osun SWR School-based 749 245 32.7 29.4–36.2
[84] 2009 Akwa Ibom SSR School-based 405 286 70.6 65.9–75.0
[85] 2005 Adamawa NER School-based 250 114 45.6 39.3–52.0
[86] 2013 Abia SER School-based 200 41 20.5 15.1–26.8
[87] 2003 Ogun SWR School-based 2837 1376 48.5 46.7–50.4
[88] 2003–2005 Ogun SWR School-based 1519 435 28.6 26.4–31.0
[89] 2009 Osun SWR Community-based 352 121 34.4 29.4–39.6
[90] 2005 Osun SWR Community-based 300 18 6.0 3.6–9.3
[91] 2012 Ebonyi SER School-based 300 244 81.3 76.5–85.6
[92] 2004/2005 Osun SWR School-based 489 468 95.7 93.5–97.3
[93] 2011 Osun SWR School-based 419 401 95.7 93.3–97.4
[94] 2002 Abia SER School-based 300 277 92.3 88.7–95.1
[95] 2014 Benue NCR Community-based 228 23 10.1 6.5–14.8
[96] 2001/2002 Edo SSR Hospital-based 207 44 21.3 15.9–27.5
[97] 2013 Rivers SSR School-based 364 62 17.0 13.3–21.3
  1. CI Confidence interval, NCR North-central region, NER North-east region, NWR North-west region, SER South-east region, SSR South-south region, SWR South-west region