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Table 1 Demographic characteristics of included studies

From: Outcomes of implants placed after osteotome sinus floor elevation without bone grafts: a systematic review and meta-analysis of single-arm studies

S.L.no.

Author

Year

Country

Centers

Surgeons

Study design

Sample size

Gender

Age range

Smokers

1

Leblebicioglu et al. [10]

2005

Turkey

1

NR

Randomized controlled clinical trial

40

21F, 19M

46.7 years

Yes

2

Jurisic et al. [11]

2008

Serbia

1

2

Retrospective cohort

33

26F, 35M

38–64 years

NR

3

Schmidlin et al. [12]

2008

Switzerland

1

2

Retrospective cohort

24

15F, 9M

61.9 ± 10.3 years

NR

4

Gabbert et al. [13]

2009

Germany

1

2

Prospective clinical study

36

20F, 16F

20–76 years

No

5

Nedir et al. [14]

2009

Switzerland

1

2

Prospective clinical study

32

NR

39–82 years

NR

6

Pjetursson et al. [15]

2009

Switzerland

1

NR

Prospective clinical study

181

NR

17–90 years

No

7

Lai et al. [16]

2010

Switzerland

1

NR

Clinical trial

202

NR

20–68 years

NR

8

Nedir et al. [17]

2010

Switzerland

1

NR

Prospective clinical study

17

14F, 3M

38–69 years

NR

9

Fornell et al. [21]

2011

Sweden

1

NR

Prospective clinical study

14

7M, 7F

34–75 years

NR

10

He et al. [23]

2011

China

NR

NR

Retrospective cohort

22

10F, 12M

19–70 years

NR

11

Senyilmaz et al. [18]

2011

Turkey

NR

NR

Pilot study

17

9F, 8M

55 years

Yes

12

Volpe et al. [25]

2011

Sweden

NR

NR

Retrospective cohort

20

15F, 5M

48 years

NR

13

Zahran et al. [22]

2011

Egypt

NR

NR

Prospective clinical study

64

34F, 30M

35–72 years

NR

14

Bruschi et al. [19]

2012

Italy

1

1

Retrospective cohort

46

29F, 17M

26–83 years

NR

15

Fermergard et al. [20]

2012

Sweden

NR

NR

Retrospective cohort

36

NR

64 ± 12 years

NR

16

Si et al. [24]

2013

China

1

NR

Randomized controlled clinical trial

20

NR

≥ 18 years

NR

17

Brizuela et al. [26]

2014

Spain

1

1

Prospective clinical trial

37

22F, 15M

31–68 years

Yes

18

Gu et al. [31]

2016

China

1

NR

Prospective clinical study

28

13F, 15M

19–78 years

NR

19

Nedir et al. [27]

2014

Switzerland

1

NR

Case series

7

NR

47.5 ± 18.4 years

NR

20

Bassi et al. [28]

2015

Sweden

1

NR

Prospective clinical study

17

NR

NR

NR

21

Markovic et al. [32]

2015

Serbia

2

NR

Prospective clinical trial

45

NR

18–56.7 years

NR

22

Nedir et al. [33]

2016

Switzerland

1

NR

Prospective clinical study

17

14F, 3M

38–69 years

NR

23

Spinelli et al. [29]

2015

Switzerland

1

NR

Prospective clinical study

39

17F, 12M

33–76 years

Yes

24

French et al. [30]

2016

Canada

NR

NR

Retrospective cohort

541

279F, 262M

18–88 years

NR

25

Nedir et al. [38]

2017

Switzerland

1

NR

Randomized controlled clinical trial

9

NR

57.6 ± 4.7 years

NR

26

Si et al. [34]

2016

China

1

NR

Retrospective cohort

80

37F, 43M

25–70 years

Yes

27

Zill et al. [35]

2016

Germany

1

NR

Retrospective cohort study

113

NR

31–84 years

NR

28

Caban et al. [36]

2017

Sweden

1

1

Retrospective cohort

25

11F, 14M

44–84 years

Yes

29

Cheng et al. [37]

2017

China

NR

NR

Prospective clinical study

29

13F, 35M

43–71 years

NR

30

Abi Najm et al. [39]

2018

Switzerland

NR

NR

Prospective clinical study

17

14M, 3F

38–69 years

Yes

31

Yang J et al. [40]

2018

China

1

1

Retrospective cohort

40

19F, 21M

22–70 years

NR

32

Merheb et al. [7]

2019

Switzerland

1

NR

Prospective clinical study

12

9F, 3M

57.6 ± 4.7 years

NR

33

Qian et al. [8]

2020

China

1

NR

Randomized controlled clinical trial

22

NR

≥ 18 years

Yes

34

Rawat et al. [4]

2019

India

NR

NR

Randomized controlled clinical trial

21

NR

NR

NR

35

Nahlieli et al. [41]

2019

Turkey

NR

NR

Retrospective study

331

NR

NR

NR

  1. NR not reported, M male, F female