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Table 1 Summary of studies for colorectal cancer rates (per 100,000) in Iran

From: Increased colorectal cancer incidence in Iran: a systematic review and meta-analysis

First Author’s Surname, Year, Reference Province of population studied Duration of study Study cases Target population Mean age (±SD) Cases ≤40 year ASR/100,000 CR/100,000 Gender Male/Female % Anatomical subsite
Somi 2014 [15] East Azerbaijan 2007–2011 366 3724620 59.4 (±14.7) NP M:11.2 M:11.5 55/45 NP
F:8.93 F:9.22
Rouhollahi 2014 [10] Iran 2011–2013 7163 75149669 NP NP M:11.6 NP NP NP
F:10.5
Moradi Nejad 2014 [45] Hormozgan 2011 23 1578183 M:56 NP NP M:1.1 55/45 NP
F:51 F:1.2
Vakili 2014 [46] Yazd 2005–2009 NP 990818 M:60.07 (±19.49) NP 2005–2009 NP 53.5/46.5 NP
M: 6.1–9.9
F:54.93 (±18.03)   F:5.2–6.0
Askarian 2014 [47] Fars 2001–2009 1531 4.6 million NP NP 9Y 9Y 58/42 NP
M:63.36 M:44.04
F:48.15 F:32.81
Amoori 2014 [48] Khouzestan 2004–2008 NP 4531720 NP NP M:11.6 NP NP NP
F:10
Overall:10.8
Fateh 2013 [49] Shahroud 2000–2010 NP 234825 61.8 (±4.4) NP 10Y 10Y 53.3/46.7 NP
M:114.8 M:98.9
F:95.4 F:83.9
Overall:105.2 Overall:91.6
Rohani-Rasaf 2013 [23] Tehran 2008 NP 13422366 NP NP M:16.4 NP NP NP
F:12.2
Talaiezadeh 2013 [50] Khuzestan 2002–2009 1102 4,531,720 52.91 (±20.95) NP M:6.32 M:4.32 51.4/48.6 NP
F:5.72 F:3.45
Abdifard 2013 [6] West of Iran: 2000–2005 762 1:1945227 NP NP 2000–2005 NP NP NP
1. Kermanshah 2:1493645 1:07–6.2
2. Kordestan 3:557599 2:2.7–4.1
3. Ilam 4:175826 3:0.0–2.1
4. Hamedan Overall:575739 4:1.8–4.6
Overall:1.5–4.8
Hosseinzadeh 2012 [51] Isfahan 2009 125 4879312 58.38 (±11.64) 5.6 % Overall :2.37 NP 53.8/47.2 NP
Roshandel 2012 [30] Golestan 2004–2008 611 1640200 M:62 (±25) NP M: 12.4 M:8.34 56.4/43.6 NP
F:53 (±25) F: 9.5 F:6.54
Safaee 2012 [16] INCRS 2005–2009 19617 70166948 58.9 (±15.4) 11 % 4Y NP 56/44 Colon: 62 %
M:39.96 Rectal: 35.1 %
F:36.16 Anus & Anal canal: 2.9 %
Overall:38.0
Najafi 2011 [52] Kermanshah 1994–2007 665 2000000 NP NP 1993–2007 NP 59/41 NP
3.5–5.7
Overall:4.5
Rohani-Rasaf 2011 [53] Tehran 2007 509 7803883 NP NP M:13.418 M:7.324 NP NP
F:4.284 F:5.710
Overall:4.940 Overall:6.522
Haghdoost 2011 [2] Kerman 1991–2002 551 2.6 million 56.4 NP 12Y 12Y 49.9/50.1 NP
M:50 M:21
F: 53 F:22
Zendehdel 2010 [54] Iran 2004–2006 NP 70166948 NP NP M:7.1 M:6.1 NP NP
F:6.5 F:5.4
Koosha 2010 [33] East Azerbaijan 2007 208 3603456 54.97 (±18) NP M:7.98 M: 6.3 57.2/42.8 NP
F:5.67 F: 4.82
Overall:6.78 Overall:5.55
Mashhadi 2010 [24] Zahedan 2003–2006 94 2405742 51 (±19) NP 4Y NP 58/42 NP
M: 41
F: 53
Keshtkar 2009 [55] Golestan 2004–2005 47 1617087 52.2 (±13.8) 10.6 % Overall:6.26 NP NP NP
Somi 2009 [14] East Azerbaijan 2006–2007 337 3603456 M:54.53 (±14.21) NP M:11.57 M:10.2 55.4/44.6 NP
F:6.91 (±14.41)   F:9.73 F:8.50
Babaei 2009 [56] Ardabil 2004–2006 241 1,228,155 59.8 (±17.8) NP M:9.6 M:7.6 59.75/40.24 NP
F:7.4 F:5.3
Ganji 2009 [57] Iran 2000–2004 1198 63741000 NP NP M: 8.3 NP 53/47 NP
F: 6.5
Overall: 7.4
Abdollahian 2009 [58] Lorestan 1999–2003 39 1754243 NP 0 % 8.94 NP 56.4/43.6 NP
Mousavi 2008 [59] Iran 2005–2006 4056 10629166 NP NP M: 8.19 M:6.37 55.6/44.4 NP
F: 7.56 F:5.36
Overall: 8
Mehrabani 2008 [60] Fars 1990–2005 197 4336878 NP NP M: 3.26 M:1.92 56.85/43.15 NP
F:2.41 F:1.51
Fakheri 2008 [3] Mazandaran Oct1999–Feb2008 296 2922432 52.6 (±15.24) 33.5 %(98) 8Y NP 51.35/48.65 RS: 40.2 %
Overall :10.94 LS: 18.58 %
Rectal: 42.7 %
Salari 2007 [61] Yazd 1992–1999 191 990818 NP 7.4 % Overall:5.34 NP 55.5/44.5 RS: 16.2 %
LS:35.1 %
Rectal:32.5 %
Sadjadi 2007 [38] Kerman 1996–2000 378 2004328 M:53.1 (±21.4) NP M: 5.9 M:3.9 52.64/47.36 NP
F:49.5 (±19.3)   F:5.9 F:3.6
Semnani 2006 [31] Golestan 2006 139 1640200 NP NP M:16, M:10.2, 60.43/39.57 NP
F:9.2, F:6.8
Overall:12.6 Overall:8.5
Bafandeh 2006 [34] East Azerbaijan-Tabriz 1992–2005 143 3603456 53.9 (±13.3) 13.3 % Overall:10.44 NP 62.2/37.8 RS: 18.2 %
LS:39.1 %
Rectal: 42.6 %
Somi 2006 [35] East Azerbaijan 1999–2004 NP 3,500,000 M:63.3 (±12.8) NP M:6.7 M:6.0 NP NP
F:59.5 (±13.4)   F:5.2 F:4.8
Ansari 2006 [1] Gilan 1996–2000 2055 9.5 million NP 17 % M:1.64 NP 54.9/44.0 NP
Mazandaran F:1.4
Golestan
Ardabil
Kerman
Pahlavan 2005 [22] 1. Ardabil 1996–2000 1628 1.1168011 NP NP 1.M:7.86 1.M:5.0 57.4/42.5 NP
2. Mazandaran 2.1740772 F:5.89 F:3.3
3. Golestan 3.1522468 2.M:9.9 2.M:8.9
4. Kerman 4.2004328 F:8.4 F:7.0
3.M:10.7 3.M:7.4
F:6.5 F:4.2
4.M:5.9 4.M:3.9
F:5.9 F:3.6
Sadjadi 2005 [62] Golestan 1996–2000 3641 6.4 million NP NP M: 8.3 NP 56.2/43.8 NP
Mazandaran F: 6.5
Kerman
Ardabil
Babaei 2005 [63] Semnan 1998–2001 NP 293000 59.41 (±19.08) NP M: 11.62 M:10.6 54/46 NP
F: 10.52 F:8.4
Jalali 2005 [64] Iran 1981–2001 900 13422366 51.07 (±14.87) 26 % Overall :7.82 NP 58/42 RS:12.7 %
LS:22.91 %
Rectal: 64.65 %
Emami 2005 [65] Isfahan 1996–2003 1100 4559256 NP 15.2 % 7Y NP NP RS:14.1
Overall :24.95 LS:24.3 %
Rectal: 61.6 %
Yazdanbod 2004 [66] Ardabil 1996–1999 NP 1128864 NP NP M: 7.86 M:5.04 NP NP
F:5.89 F:3.33
Nikshoar 2004 [67] Iran 1992–2002 2107 13422366 NP 20.4 % 10 Y NP 55.9/44.1 RS: 13.9 %
M:20.84 LS:30.5 %
F:17.56 Rectal:55.7 %
Sadjadi 2003 [68] Ardabil 1996–1999 180 1128864 M:59.1 (±16.7) NP M: 7.9 M:5 60/40 NP
F: 5.9 F:3.3
F:53.0 (±17.8)
Sarmast 2002 [39] Khuzestan 1992–1999 100 4274979 NP 30 % Overall :3.53 NP 58/42 RS:13 %
LS:42 %
Rectal:45 %
Sotoudehmanesh 2002 [69] Iran 1991–2000 380 13422366 53.9 (±15.6) 22.3 % Overall :6 NP 60.3/39.7 NP
Molanaei 2000 [70] Kurdistan 1995–1999 100 1440156 51.49 23 % 5Y NP 61/39 NP
Overall :8.82
  1. NP not presented, Y year, RS right site, LS left site, ASR age standardized incidence rate, CR crude incidence rate, INCRS Iranian annual of national cancer registration, CGLD research center of gastrointestinal and liver disease