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Table 1 Characteristics of the included studies and the main results

From: Harm reduction program and hepatitis C prevalence in people who inject drugs (PWID) in Iran: an updated systematic review and cumulative meta-analysis

First author and reference

Study date

Study location (city)

Total sample size

Study design

Study sampling procedure

Recruitment setting

HCV Ab prevalence

Alam-Mehrjerdi et al. [100]

2012

Tehran

53

CS

Conv

Drop-in-center and rehab center

43% (30–56%)

Alavi et al. [98]

2002

Ahwaz

104

CS

Conv

Clinical: hospital and healthcare center

74% (65–82%)

Alavi et al. [99]

2003

Ahwaz

142

CS

Conv

Clinical: hospital and healthcare center

52% (43–60%)

Alipour et al. [97]

2013

Mixed (Shiraz, Tehran, and Mashhad)

226

CS

Conv

Drop-in-center and rehab center

38% (32–44%)

Alizadeh et al. [96]

2002

Hamedan

149

CS

SRS

Prison

31% (24–39%)

Amin-Esmaeili et al. [15]

2005

Tehran

895

CS

Conv

Drop-in-centers and rehab center

34% (31–37%)

Aminzadeh et al. [94]

2007

Tehran

70

CS

Conv

Clinical: hospital & healthcare center

36% (24–47%)

Amini et al. [95]

2000

Tehran

34

CS

Conv

Drop-in-center and rehab center

65% (49–81%)

Ahmadzad-Asl et al. [93]

2004

Karaj

150

CS

Conv

Prison

75% (69–82%)

Ataei et al. [92]

2009

Isfahan

3284

CS

Conv

Drop-in-center and rehab center

38% (36–39%)

Ataei et al. [91]

2011

Isfahan

1485

CS

Conv

Prison

43% (40–45%)

Ataei et al. [90]

2011

Isfahan

136

CS

Conv

Drop-in-center and rehab center

19% (13–26%)

Azizi et al. [89]

2008

Kermanshah

263

CS

Conv

Drop-in-center and rehab center

33% (27–38%)

Davoodian et al. [88]

2002

Bandar abbas

249

CS

SRS

Prison

64% (58–70%)

Eskandarieh et al. [87]

2013

Tehran

258

CS

Conv

Drop-in-center and rehab center

65% (60–71%)

Fadaei Nobari et al. [63]

2008

Isfahan

1747

CS

Conv

Community-based

34% (31–36%)

Ghasemian et al. [86]

2009

Sari and Ghaemshahr

88

CS

Conv

Clinical: hospital and healthcare center

38% (27–48%)

Hajinasrollah et al. [85]

2005

Tehran

65

CS

Conv

Clinical: hospital and healthcare center

17% (7–26%)

Honarvar et al. [84]

2012

Shiraz

233

CS

Conv

Drop-in-center and rehab center

40% (34–46%)

Hosseini et al. [83]

2006

Tehran

417

CS

Conv

Prison

80% (76–83%)

Imani et al. [82]

2004

Shahr-e-Kord

133

CS

Conv

Drop-in-center and rehab center

11% (5–16%)

Ismail et al. [81]

2005

Tehran

65

CS

Conv

Clinical: hospital and healthcare center

17% (7–26%)

Kaffashian et al. [80]

2011

Isfahan

951

CS

Conv

Prison

42% (38–45%)

Kassaian et al. [79]

2009

Isfahan

943

CS

Conv

Prison

41% (38–44%)

Keramat et al. [78]

2006

Hamedan

199

CS

Conv

Behavioral consulting center

63% (56–70%)

Khani et al. [77]

2001

Zanjan

346

CS

Conv

Prison

50% (45–56%)

Kheirandish et al. [76]

2006

Tehran

454

CS

Conv

Prison

80% (76–83%)

Khodadadi-zadeh et al. [75]

2003

Rafsanjan

180

CS

Conv

Drop-in-center and rehab center

26% (19–32%)

Khorvash et al. [74]

2005

Isfahan

92

CS

Conv

Clinical: hospital and healthcare center

74% (65–83%)

Majidi et al. [127]

2010

Tehran

104

CS

Conv

Clinical: hospital and healthcare center

7% (2–11%)

Malekinejad et al. [73]

2007

Tehran

564

CS

Respondent-driven sampling

Clinical: hospital and healthcare center

84% (81–87%)

Mehrjerdi et al. [101]

2011

Tehran

209

CS

Conv

Drop-in-center and rehab center

26% (20–32%)

Meidani et al. [72]

2007

Isfahan

150

CS

Conv

Clinical: hospital and healthcare center

26% (19–33%)

Meshkati et al. [71]

2007

Isfahan

98

CS

Conv

Behavioural consulting center

52% (42–61%)

Mir-Nasseri et al. [68]

2002

Tehran

467

CS

NS

Drop-in-center and rehab center

66% (61–70%)

Mir-Nasseri et al. [69]

2002

Tehran

518

CS

Conv

Prison

69% (65–73%)

Mirahmadizadeh et al. [43]

2004

Shiraz

186

CS

Conv

NR

80% (74–85%)

Mirahmadizadeh et al. [70]

2009

Shiraz

1531

CS

SRS

Drop-in-center and rehab center

43% (40–45%)

Mobasheri Zadeh et al. [47]

2011

Isfahan

1055

CS

Conv

Drop-in-center and rehab center

7% (5–8%)

Mohtasham Amiri et al. [67]

2003

Rasht

81

CS

Conv

Prison

88% (82–95%)

Momen-Heravi et al. [66]

2012

Kashan

300

CS

SRS

Drop-in-center and rehab center

47% (41–52%)

Moradi et al. [65]

2015

Iran

678

CS

SRS

Prison

42% (38%–46%)

Naderi et al.[64]

2004

Tehran

144

CS

Conv

Clinical: hospital and healthcare center

22% (15–28%)

Nokhodian et al. [62]

2008

Isfahan

539

CS

Conv

Drop-in-center and rehab center

42% (37–46%)

Noroozi A et al. [42]

2011

Karaj, Isfahan, Gorgan

192

CS

Conv

Drop-in-center and rehab center

28% (21–34%)

Rahbar et al. [61]

2001

Mashhad

101

CC

Conv

Prison

59% (49–69%)

Rahimi-Movaghar et al. [60]

2005

Tehran

899

CS

Snowball sampling

Drop-in-center and rehab center

34% (31–37%)

Ramezani et al. [59]

2012

Arak

100

CS

Conv

Drop-in-center and rehab center

56% (46–65%)

Rezaie et al. [58]

2014

Kermanshah

410

CS

Conv

Drop-in-center and rehab center

42% (37–46%)

Rostami-Jalilian et al. [57]

2003

Isfahan

148

CS

Conv

Clinical: hospital and healthcare center

40% (32–48%)

Saleh et al. [56]

2008

Hamedan

94

CC

Conv

Clinical: hospital and healthcare center

60% (50–70%)

Salehi et al. [55]

2009

Shiraz

1327

CS

Conv

Drop-in-center and rehab center

13% (11–15%)

Sani et al. [49]

2008

Mashhad

62

CS

Conv

Clinical: hospital and healthcare center

71% (59–82%)

Sarkari et al. [54]

2010

Yasuj

158

CS

Conv

NR

42% (34–49%)

Sayad et al. [53]

2006

Kermanshah

1721

CS

SRS

Community-based

50% (47–52%)

Sharhani et al. [52]

2017

Kermanshah

606

CS

Conv

Community-based

55% (51–59%)

Sharif et al. [51]

2004

Kashan

200

CS

Conv

Clinical: hospital and healthcare center

12% (7–16%)

Sofian et al. [50]

2009

Arak

153

CS

Conv

Prison

59% (51–67%)

Tayeri et al. [48]

2004

Isfahan

106

CS

Conv

Clinical: hospital and healthcare center

75% (67–83%)

Zali et al. [46]

1995

Tehran

402

CS

SRS

Prison

45% (40–49%)

Zamani et al. [45]

2004

Tehran

202

CS

Conv

Community-based

52% (45–58%)

Zamani et al. [21]

2008

Isfahan

118

CS

Snowball sampling

Drop-in-center and rehab center

59% (47–69%)

  1. CS cross-sectional study, CC case–control study, NR not reported, Conv convenience sampling, SRS systematic random sampling