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Table 1 General characteristics of included systematic review

From: Identifying competing interest disclosures in systematic reviews of surgical interventions and devices: a cross-sectional survey

Characteristics n = 155
No of authors a 6 (2–21)
No of study included a 7 (1–44)
No of participants included a 1167 (80–19,886)
No of database included a 4 (1–15)
Methodologist involved 23 (14.8)
Cochrane SR 25 (16.1)
PRISMA mentioned 89 (57.4)
Type of journal
 General 109 (70.3)
 Surgical 46 (29.7)
Country of corresponded author
 China 48 (31.0)
 USA 22 (14.2)
 UK 18 (11.6)
 Italy 12 (7.7)
 Australia 12 (7.7)
 Other 43 (27.8)
Type of comparison
 Surgical versus surgical 132 (85.2)
 Surgical versus non-surgical 17 (10.9)
 Surgical versus both 6 (3.9)
Comparisons between different surgical procedures
 Procedures 79 (59.8)
 Devices 53 (40.2)
Specialty
 General 54 (34.9)
 Cardiothoracic 45 (29.0)
 Orthopedic 24 (15.5)
 Other 32 (20.6)
  1. Values in parentheses are percentages unless indicated otherwise
  2. a values are median (range)