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Table 2 QUADAS-2 evaluation

From: 3.0 T MRI is more recommended to detect acetabular labral tears than MR Arthrography: an updated meta-analysis of diagnostic accuracy

Study

QUADAS Score*

1

2

3

Bias

Appl

4

5

Bias

Appl

6

7

Bias

Appl

8

9

10

Bias

Freedman BA

NC

1

1

Low

Low

1

1

Low

Low

1

NC

Low

Low

1

1

1

Low

Leunig M

NC

1

1

Low

Low

NC

1

Low

Low

1

NC

Low

Low

1

1

1

Low

Toomayan GA

0

1

1

High

Low

1

1

Low

Low

1

NC

Low

Low

NC

1

1

Low

Chan YS

0

1

1

High

Low

1

1

Low

Low

1

NC

Low

Low

NC

1

0

High

Byrd JW

NC

1

1

Low

Low

NC

1

Low

Low

1

NC

Low

Low

NC

1

1

Low

Mintz DN

NC

1

1

Low

Low

1

1

Low

Low

1

NC

Low

Low

NC

1

1

Low

Studler U

1

1

1

Low

Low

1

1

Low

Low

1

NC

Low

High

NC

0

1

High

Petersilge CA

NC

1

1

Low

Low

NC

1

Low

Low

1

0

High

High

NC

0

1

High

Keeney JA

1

1

1

Low

Low

NC

1

Low

Low

1

0

High

Low

NC

1

1

Low

Aprato A

NC

1

1

Low

Low

NC

1

Low

Low

1

NC

Low

High

1

0

1

High

Banks DB

NC

1

1

Low

Low

1

1

Low

Low

1

0

High

Low

1

1

1

Low

Magee T

1

1

1

Low

Low

1

1

Low

Low

1

0

High

Low

1

1

1

Low

Tian CY

NC

1

1

Low

Low

1

1

Low

Low

1

0

High

Low

1

1

1

Low

Reurink G

0

1

1

High

Low

1

1

Low

Low

1

NC

Low

Low

1

1

1

Low

Crespo-Rodríguez AM

1

1

1

Low

Low

1

1

Low

Low

1

0

High

Low

1

1

1

Low

Carulli C

1

1

1

Low

Low

1

1

Low

Low

1

1

Low

Low

NC

1

1

Low

Annabell L

1

1

1

Low

Low

1

1

Low

Low

1

NC

Low

Low

1

1

1

Low

Saied AM

NC

1

1

Low

Low

NC

1

Low

Low

1

0

High

Low

NC

1

1

Low

Linda DD

NC

1

1

Low

Low

1

1

Low

Low

1

0

High

Low

1

1

1

Low

Sutter R

0

1

1

High

Low

1

1

Low

Low

1

NC

Low

High

1

0

1

High

Sahin M

NC

1

1

Low

Low

1

1

Low

Low

1

NC

Low

Low

NC

1

1

Low

Schmaranzer F

1

1

1

Low

Low

1

1

Low

Low

1

NC

Low

Low

NC

1

1

Low

Lee GY

NC

1

1

Low

Low

1

1

Low

Low

1

1

Low

Low

NC

1

1

Low

  1. The numbers in the top row correspond to the following questions: Domain 1: Patient selection. Numbers correspond with the following questions: (1) Was a consecutive or random sample of patients enrolled? (2) Was a case–control design avoided? (3) Did the study avoid inappropriate exclusions? Domain 2: Index test. Numbers correspond with the following questions: (4) Were the index test results interpreted without knowledge of the results of the reference standard? (5) If a threshold was used, was it pre-specified? Domain 3: Reference test. Numbers correspond with the following questions: (6) Is the reference standard likely to correctly classify the target condition? (7) Were the reference standard results interpreted without knowledge of the results of the index test? Domain 4: Flow and timing. Numbers correspond with the following questions: (8) Was there an appropriate interval between index test(s) and reference standard? (9) Did all patients receive a reference standard? (10) Were all patients included in the analysis?
  2. *Number 1 indicates “yes,” and 0 indicates “no”; Bias risk: of bias; Appl.: concerns regarding applicability; NC: not clear