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Table 2 Main features of the studies

From: Dipeptidyl peptidase 4 (DPP-4) inhibitors and cardiovascular outcomes in patients with type 2 diabetes mellitus (T2DM): a systematic review and meta-analysis

Studies

Type of study

Time period of patients’ enrollment

Total no of patients assigned to DPP-4 inhibitors (n)

Total no of patients assigned to control group (n)

Gantz2017 [7]

RCT

2012–2017

2092

2100

Green2015 [8]

RCT

2008–2015

7332

7339

Park2015 [9]

OS

2007–2011

1866

5179

Scirica2013 [10]

RCT

2010–2011

8280

8212

Shih2016 [11]

OS

2009–2013

53,208

53,208

Wang2015 [12]

OS

2009–2011

547

2735

White2013 [13]

RCT

2009–2013

2701

2679

Total no of patients (n)

  

76,026

81,452

  1. Abbreviations: RCT Randomized controlled trials, OS Observational studies, DPP-4 dipeptidyl peptidase 4