Table 1 HEV seroprevalence studies in Turkey
From: Hepatitis E virus infection in Turkey: a systematic review
Authors, references | Year published | Year | City | Study type | Sample size | Prevalence (IgG) (%) | Prevalence by age group | Power of study | Remarks |
|---|---|---|---|---|---|---|---|---|---|
Aribas et al. [12] | 2000 | NA | Konya | C-S | 162 | 12.3 | Â | NA | Children admitted to hospital |
Atabek et al. [13] | 2004 | 2001–2002 | Konya | C-S | 210 | 5.7 | 1–6 year: 0, 7–12 year: 6.8%, 13–18 year: 8.9% | NA | Rural 8.5%, urban 0.2%, p > 0.05 |
Aydın et al. [14] | 2015 | 2012–2013 | Ankara | C-S | 1043 | 4.4 | 0–18 year: 0, 19–55 year: 30.4%, 56–90 year: 69.5% | NA |  |
Bayhan et al. [15] | 2016 | 2014 | Van | C-S | 408 | 4.2 | 4.4% in 0–5 year, 3.4% in 6–13 year, 5.7% in 14–18 year | Calculated | Individuals admitting to hospital were compared in age groups: no difference. |
Cesur et al. [16] | 2002 | 2000–2001 | Ankara | C-S | 1046 | 3.8 | 15–30 year: 0, 30–45 year: 4.4%, 45–60 year: 6.6%, > 60 year: 7.4% | NA | 15–75 year age group admitting to hospital |
Cevahir et al. [17] | 2013 | NA | Denizli | C-S | 185 | 12.4 | 7 year: 18.1%, 14 year: 6.6% | NA | Rural %13.1 vs. urban %11.7, p > 0.05. 7 year had higher prevalence than 6 year group |
Colak et al. [18] | 2002 | 1996–1997 | Antalya | C-S | 338 | 0.9 | 1–5 year: 0, 6–11 year: 1.6% | NA | No seropositives in preschool children |
Eker et al. [19] | 2009 | 2005 | Edirne | C-S | 582 | 2.4 | Â | Calculated | No difference in subgroups. Age range was not provided |
Kaya et al. [20] | 2008 | 2003 | Düzce | C-S | 589 | 0.3 | 6 month–12 year: 0, 13–17 year: 0.8% | NA | No seropositives in < 13 year-old |
Maral et al. [21] | 2009 | 2003–2005 | Ankara | L | 515 | 1.7–2.1 |  | NA | 6–14 year group. Same group re-studied 2 years later |
Olcay et al. [22] | 2003 | 2000 | Ankara, Manisa, Diyarbakir | C-S | 910 | 6.3 | 7–14 year: 1.6%, 15–24 year: 3.3%, 25–64 year: 8.2%, > 64 year: 10% | NA | Ankara 2.7%, Manisa 3.8%, Diyarbakir  %11.7, significant. In Diyarbakir prevalence increased by age |
Sidal et al. [23] | 2001 | 1997–1998 | Istanbul | C-S | 909 | 2.1 | 6 month–2 year: 4.8%, 2–5 year: 3.1%, 5–10 year: 2.1%, 10–16 year: 0.3% | NA |  |
Thomas et al. [10] | 1993 | 1990–1992 | Istanbul, Aydin, Ayvalik, Adana, Trabzon | C-S | 1350 | 5.9 | 11–20 year: 0, 21–30 year: 3.7%, 31–40 year: 9.1%, 41–50 year: 5.7%, 51–60 year: 8.7%, 61–70 year: 6.9%, 71–80 year: 11.1% | NA | Older age, HCV, being in Adana city were determined as risk factors |
Yuce et al. [24] | 1998 | NA | Ankara | C-S | 400 | 0 | 0 month–17 year: 0 | NA |  |