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Table 3 Test types evaluated in the 103 test-treatment RCTs

From: Research waste in diagnostic trials: a methods review evaluating the reporting of test-treatment interventions

Test type

Control

(%)

Experimental

(%)

Biochemical

10

(10)

25

(21)

Biopsy

1

(1)

2

(2)

Clinical

18

(17)

14

(12)

Electrophysiology

7

(7)

10

(8)

Imaging (all)

35

(33)

50

(42)

Endoscopy

14

(13)

11

(9)

Radiology

21

(20)

39

(33)

Telemedicine

2

(2)

2

(2)

Standard Care

10

(10)

0

(0)

Multiple test interventions

8

(8)

12

(10)

No test

14

(13)

4

(3)

Total

a105

 

a119

 
  1. adenominators refer to the number of study arms