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Table 2 Reporting of the different components of the intervention intended or actually administered

From: Quality of reporting internal and external validity data from randomized controlled trials evaluating stents for percutaneous coronary intervention

Reporting of n = 132 (%)
Intervention as intended 121 (91.7)
Intervention as actually administered 98 (74.2)
Component of the intervention described  
   Anesthesia management 1 (0.9)
   Access site (i.e. transfemoral access site) 21 (15.9)
   Data on equipment (i.e., guide catheters, wires) 28 (21.2)
   Data on stent 99 (75.0)
Left to operator's discretion 5 (3.8)
Description of the device (i.e., length, component) 74 (56.1)
Manufacturer 83 (62.9)
   Procedural characteristics 98 (74.2)
Number of stents implanted 73 (55.3)
Use of dilatation balloon 59 (44.7)
Number of inflations 9 (6.8)
Duration of inflation 12(9.1)
Number attempted and successfully treated 12 (9.1)
Procedure duration 8 (6.1)
   Co-interventions 124 (93.9)
Setting  
   Secondary setting 1 (0.8)
   Tertiary or academic setting 18 (13.6)
   Not reported 113 (85.6)
Center  
   Single 24 (18.2)
   Multicentre 63 (47.7)
   Not reported or unclear 45 (34.1)
Centers  
   Stratification on centers 10 (7.6)
   Number of centers (median, Q1 to Q3) 15.4 (1–22)
   List of participating centers 45 (34.1)
   Center volume reported 2 (1.5)
   Source of equipment reported 1 (0.8)
   Specific equipment required 0
Operators  
   Selection criteria for operators 5 (3.8)
   Number of operators (median, Q1 to Q3) 5.5 (5–6)
   Number of patients treated by each operator 0
Clustering effect taken into account 0