Lee (2010)99 Yes Yes Yes Yes Liu (2010)100 Yes Yes Yes Yes Wei (2012)101 Yes Yes Yes Yes Yeh (2011)102 Yes Yes Yes Yes Lin (2015)103 Yes Yes Yes Yes Wei (2012)104 Yes Yes Yes Yes Wang (2013)105 Yes Yes Yes Yes Zoguereh (2001)106 Yes Yes Yes Yes Bickler (2000)107 Yes Yes Yes Yes Naaeder (1999)108 Yes Yes Yes Yes Miller (1964)109 Yes Yes Yes Not specified in article Langenscheidt Yes Yes Yes Yes (1999)110 Koumare (1995)111 Yes Yes Yes Yes Galukande (2010)112 Yes Yes Yes Yes Ayoade (2006)113 Yes Yes Yes Yes Oguntola (2010)114 Yes Yes Yes Yes Griffiths (1981)115 Yes Yes Yes Yes (1986)116 Yes Yes Yes Yes Walker (1989)117 Yes Yes Yes Yes Rogers (2008)118 Yes Yes Yes Yes Kong (2012)119 Yes Yes Yes Yes Data not published, but provided by the author α Appendix 4: Systematic review of studies reporting the incidence of appendicitis or appendectomy stratified by geographic region between 1932 and 2014. OECD - The Organisation for Economic Co-operation and Development. Administrative First Author Overall Study Appendicitis or Age Area Data or Other (Publication Year) Incidence Period Appendectomy Group Medical Recordsα Northern America OECD (2015)3 Canada (Nationwide) 101 1990-2012 Appendectomy Administrative All ages Al-Omran (2003)4 Canada (Ontario) 75 1991-1998 Appendicitis Administrative All ages
Lee (2010)99 Yes Yes Yes Yes Liu (2010)100 Yes Yes Yes Yes Wei (2012)101 Yes Yes Yes Yes Yeh (2011)102 Yes Yes Yes Yes Lin (2015)103 Yes Yes Yes Yes Wei (2012)104 Yes Yes Yes Yes Wang (2013)105 Yes Yes Yes Yes Zoguereh (2001)106 Yes Yes Yes Yes Bickler (2000)107 Yes Yes Yes Yes Naaeder (1999)108 Yes Yes Yes Yes Miller (1964)109 Yes Yes Yes Not specified in article Langenscheidt (1999)110 Yes Yes Yes Yes Koumare (1995)111 Yes Yes Yes Yes Galukande (2010)112 Yes Yes Yes Yes Ayoade (2006)113 Yes Yes Yes Yes Oguntola (2010)114 Yes Yes Yes Yes Griffiths (1981)115 Yes Yes Yes Yes (1986)116 Yes Yes Yes Yes Walker (1989)117 Yes Yes Yes Yes Rogers (2008)118 Yes Yes Yes Yes Kong (2012)119 Yes Yes Yes Yes α Data not published, but provided by the author Appendix 4: Systematic review of studies reporting the incidence of appendicitis or appendectomy stratified by geographic region between 1932 and 2014. OECD - The Organisation for Economic Co-operation and Development. First Author (Publication Year) Area Overall Incidence Study Period Appendicitis or Appendectomy Administrative Data or Other Medical Recordsα Age Group Northern America OECD (2015)3 Canada (Nationwide) 101 1990-2012 Appendectomy Administrative All ages Al-Omran (2003)4 Canada (Ontario) 75 1991-1998 Appendicitis Administrative All ages
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