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Table 1 Characteristics of included studies

From: Comparison between minimally invasive plate osteosynthesis and open reduction-internal fixation for proximal humeral fractures: a meta-analysis based on 1050 individuals

Included studies

Cases: MIPO/ORIF

Sex: male/female

Mean age (years): MIPO/ORIF

Follow-up (months)

Fracture type

Chiewchantanakit 2015 [21]

12/16

12/16

52/62

NS/NS

Neer: 2,3

Fischer 2016 [20]

30/30

16/34

57.6/60.6

22.8/20.7

AO: A,B,C

Gao 2015 [16]

21/18

17/22

70/72

18.1/18.1

Neer: 2,3

Kim 2019 [28]

19/17

NS/NS

58.7/52.6

24/24

Neer: 2

Lin 2014 [22]

43/43

28/58

63/61

12.6/13.1

AO: A,B,C

Liu 2013 [17]

47/51

43/55

72.8/49.9

18.1/18.1

Neer: 3,4

Liu 2015 [10]

39/52

42/49

60.2/61.7

24/24

Neer: 2,3,4

Liu 2016 [25]

33/42

28/47

50.3/52.1

14.2/14.2

Neer: 2,3

Liu 2019 [15]

45/72

44/73

62.2/60.1

NS/NS

Neer: 2,3,4

Röderer 2011 [26]

46/61

32/75

67.6/65

12/12

AO: A,B,C

Shang 2013 [19]

24/54

19/59

61.6/60

33.8/33.8

Neer: 2,3,4

Shen 2018 [23]

20/26

20/26

70.4/70.9

16.8/16.8

Neer: 2

Sohn 2017 [9]

45/45

NS/NS

61/62.6

14.3/15

Neer: 2,3,4

Wang 2012 [18]

20/20

14/26

69.6/69.7

NS/NS

Neer: 2,3

Zhang 2018 [24]

13/20

14/19

66.1/61.5

12.4/11.9

Neer: 3

Zhao 2017 [27]

17/19

21/15

64/64.3

10/10

Neer: 2,3,4

  1. MIPO Minimally invasive plate osteosynthesis, ORIF Open reduction–internal fixation, NS Not stated