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Table 1 Characteristics of included studies

From: Outcome reporting in randomised controlled trials and meta-analyses of appendicitis treatments in children: a systematic review

First Author

Year

Intervention type

Study type

Region of origin

Sample size

Age of included population

Haller Jr, [37]

1973

Surgical

RCT

NA

43

0 to 14 years

Bates [38]

1974

Antibiotic

RCT

Europe

38

0 to 9 years

Fowler [39]

1975

Antibiotic

RCT

Australasia

69

‘children’

Sherman [40]

1976

Surgical

RCT

NA

79

13 month to 16 years

Giacomantonio [41]

1982

Antibiotic

RCT

NA

42

‘pediatric age range’

Hutchinson [42]

1983

Antibiotic

RCT

Europe

133

16 month to 15 years

King [43]

1983

Antibiotic

RCT

NA

64

<18 years

Foster [14]

1987

Antibiotic

RCT

Europe

100

5 to 14 years

Gutierrez [44]

1987

Antibiotic

RCT

Europe

100

<10 years

Thomson [45]

1987

Antibiotic

RCT

Europe

84

4 to 13 years

McAllister [46]

1988

Antibiotic

RCT

Europe

401

‘children’

Schmitt [47]

1989

Antibiotic

RCT

Europe

64

6 months to 15 years

Kooi [48]

1990

Antibiotic

RCT

Asia

100

<13 years

Meller [49]

1991

Antibiotic

RCT

NA

59

2 to 15 years

Pokorny [50]

1991

Antibiotic

RCT

NA

95

2 to 12 years

Schropp [51]

1991

Antibiotic

RCT

NA

97

<18 years

Kizilcan [52]

1992

Antibiotic

RCT

Europe

100

0 to 15 years

Tsang [53]

1992

Surgical

RCT

Asia

63

2 to 12 years

Uhari [54]

1992

Antibiotic

RCT

Europe

218

2.5 to 16.8 years

Banani [55]

1995

Antibiotic

RCT

Asia

246

4 to 15 years

Soderquist-Elinder [56]

1995

Antibiotic

RCT

Europe

544

‘children’

Toki [57]

1995

Surgical

RCT

Asia

53

2 to 14 years

Lejus [27]

1996

Surgical

RCT

Europe

63

8 to 15 years

Ciftci [58]

1997

Antibiotic

RCT

Europe

200

1 to 16 years

Banani [59]

1999

Antibiotic

RCT

Asia

1083

4 to 15 years

Gorecki [60]

2001

Antibiotic

RCT

Europe

152

‘children’

Lavonius [61]

2001

Surgical

RCT

Europe

43

7 to 15 years

Lintula [62]

2001

Surgical

RCT

Europe

61

4 to 15 years

Rice [63]

2001

Antibiotic

RCT

NA

26

5 to 18 years

Shalaby [64]

2001

Surgical

RCT

Africa

150

7 to 14 years

Lintula [65]

2002

Surgical

RCT

Europe

25

4 to 15 years

Little [66]

2002

Surgical

RCT

NA

129

1 to 16 years

Tander [67]

2003

Surgical

RCT

Europe

140

Mean 7.1 year

Lintula [68]

2004

Surgical

RCT

Europe

87

4 to 15 years

Oka [69]

2004

Surgical

RCT

NA

517

Mean 10.7 years

Snelling [70]

2004

Antibiotic

SR

NA

2284

<21 years

Andersen [19]

2005

Antibiotic

SR

NA

NR

‘children’

Henry [71]

2005

Surgical

SR

NA

107

‘children’

Schneider [72]

2005

Antibiotic

RCT

Europe

27

Mean 10.3 years

Aziz [73]

2006

Surgical

SR

NA

6,477

‘children’

Malik [34]

2007

Surgical

RCT

Asia

120

3 to 18 years

Padankatti [74]

2008

Surgical

RCT

Asia

30

2 to 14 years

St Peter [1]

2008

Antibiotic

RCT

NA

100

Mean 8.6 years

Fraser [75]

2010

Antibiotic

RCT

NA

102

Mean 9.9 years

Pauniaho [76]

2010

Surgical

RCT

Europe

198

4 to 18 years

Saha [77]

2010

Surgical

RCT

Asia

60

<12 years

Sauerland [20]

2010

Surgical

SR

NA

542

‘children’

St Peter[24]

2010

Surgical

RCT

NA

40

<18 years

Blakely [22]

2011

Surgical

RCT

NA

131

<18 years

Perez [78]

2011

Antibiotic

RCT

CA

100

2 to 12 years

Romero [35]

2011

Antibiotic

RCT

Europe

49

5 to 15 years

Schurman [23]

2011

Surgical

RCT

NA

40

<18 years

St Peter [26]

2011

Surgical

RCT

NA

360

<18 years

Esposito [79]

2012

Surgical

SR

NA

123,628

0 to 18 years

Markar [80]

2012

Surgical

SR

Europe

107,624

‘children’

Myers [21]

2012

Surgical

RCT

NA

131

<18 years

St Peter [81]

2012

Surgical

RCT

NA

220

<18 years

Yu [82]

2013

Surgical

RCT

Australasia

190

8 to 14 years

Dalgic [83]

2013

Antibiotic

RCT

Europe

107

3 months to 17 years

Gasior [25]

2013

Surgical

RCT

NA

198

<18 years

Li [84]

2013

Surgical

SR

Asia

873

children >1 year

Nataraja [85]

2013

Surgical

SR

Europe

22,060

<18 years

Perez [86]

2013

Surgical

RCT

NA

50

2.9 to 15.7 years

  1. CA Central America, NA North America, NR not reported, RCT randomised controlled trial, SR systematic review