Skip to main content
. Author manuscript; available in PMC: 2022 Oct 1.
Published in final edited form as: Clin Gastroenterol Hepatol. 2020 Oct 27;19(10):2031–2045.e11. doi: 10.1016/j.cgh.2020.10.039

Table 2.

Characteristics of included studies on primary resection risk in Crohn’s Disease

Study Country Data Source Study Span (Year) Sample Size Age Group Sex (%) Location at Diagnosis (%) Behavior at Diagnosis (%) Time Intervals Reported (Years)
Bernell et al,41 2000 Sweden Stockholm County 1955 – 1989 1936 All ages M (47)
F (53)		 - - 1, 5, and 10
Burr et al,9 2019 UK Research One 1994 – 2013 3059 All ages M (47)
F (53)		 - - 1, 5, and 10
Charpentier et al,17 2014 France EPIMAD 1988 – 2006 367 Elderly M (38)
F (62)		 - B1 (78), B2 (17), B3 (5) 1, 5, and 10
Chatu et al,42 2014 UK CPRD 1989 – 2010 5640 All ages M (42)
F (57)		 - - 5
Gheorge et al,21 2004 Romania 18 secondary and tertiary centers 2002 – 2003 85 Adults M (57)
F (43)		 L1 (15), L2 (52), L3 (32), L4 (2) - 1
Guasch et al,23 2018 Spain ENEIDA 1990 – 1995, 2007 – 2012 7496 All ages - - - 1 and 5
Jeuring et al,43 2015 Netherlands IBD-SL 1991 – 2011 1159 All ages - - - 1, 5, and 10
Lakatos et al,44 2012 Hungary Veszprem Province 1977 – 2008 506 All ages M (49.6)
F (50.4)		 L1 (32.8), L2 (36.0), L3 (30.6), L4 (0.6) B1 (56.9), B2 (19.8), B3 (23.3) 1, 5, and 10
Lirhus et al,27 2018 Norway Norwegian Patient Registry 2010 – 2012 2829 All Ages M (47.5)
F (52.5)		 - - 3
Nguyen et al,30 2017 Canada Ontario Province 1999 – 2008 8985 Adult M (44.3)
F (55.7)		 - - 5 and 10
Niewiadomski et al,31 2015 Australia Barwon Area 2007 – 2008,
2010 – 2013		 146 All ages - - - 1 and 5
Nordenvall et al,32 2018 Sweden Swedish Patient Register 2002 – 2014 2174 Pediatric M (58)
F (42)		 - - 3
O’Keefe et al,45 1989 b South Africa Cape Town 1970 – 1979 72 (5y),
53 (10y)		 All ages - - - 5 and 10
Pandey et al,46 2015 Singapore 8 hospitals 1970 – 2013 430 All ages M (61.8)
F (38.2)		 L1 (27.7), L2 (27.7),
L3 (41.9), L4 (17.9)		 B1 (78.1), B2 (14.0), B3 (7.9) 5 and 10
Peneau et al,47 2012 France EPIMAD 1988 – 2004 538 Pediatric - - - 1, 5, and 10
Peyrin-Biroulet et al,48 2012 USA Olmsted County 1970 – 2004 310 All ages M (50.3)
F (49.7)		 L1 (31.2), L2 (33.1), L3 (33.4), L4 (2.3) B1 (81.3), B2 (4.6), B3 (14.1) 5 and 10
Rabilloud et al,49 2016 France Brittany Area 1994–1997 272 All ages - - - 1, 5, and 10
Ramadas et al,50 2010 UK Cardiff 1986 – 2003 341 All ages M (38)
F (62)		 - - 1 and 5
Rungoe et al,11 2014 Denmark DNPR 1979 – 2011 13185 Adult M (41)
F (59)		 - - 1, 5, and 9
Solberg et al,51 2007 Norway IBSEN 1990 – 1993 237 All ages M (50.2)
F (49.8)		 L1 (27), L2 (48.5), L3 (22.8), L4 (1.7) B1 (62.0), B2 (27.0), B3 (11.0) 1, 5, and 10
Spizzo et al,39 2016 Australia GECCO 2007 – 2015 62 All ages - - - 4
Zhulina et al,52 2016 Sweden Orebro University Hospital 1963 – 2005 472 All ages M (47)
F (53)		 L1 (40.5), L2 (33.9), L3 (23.7), L4 (1.7) B1 (63.5), B2 (19.5), B3 (16.7) 1 and 5

M: Male, F: Female, L1: Ileal, L2: Colonic, L3: Ileocolonic, L4: Upper GI Tract, B1: Inflammatory, B2: Fibrostenotic, B3: Penetrating