Study Prospective (P) or Retrospective (R) Diagnostically uncertain patients Gold standard evaluator blinded to results of the physical examination? Physical examination evaluator blinded to gold standard? Physical examination evaluator blinded to other imaging? Verification bias present?
Beaule [4] P Yes Uncertain Yes Yes Yes
Bird [12] P Yes Yes Yes Yes No
Chan [5] P Yes No Yes Yes Yes
Martin [7] P Yes No Yes Uncertain Yes
Mitchell [13] R Yes No Yes Uncertain Uncertain
Narvani [16] P Yes Uncertain Yes Uncertain No
Suenaga [17] P No Uncertain Yes Uncertain Uncertain
Sutlive [5] P Yes Yes Yes Yes No
Hananouchi [8] P Yes Uncertain Yes Uncertain No
Kapron [9] P Yes Yes Yes Yes No
Troelsen [6] R No Yes Yes Yes No
Youdas [10] P No Uncertain Uncertain Uncertain No
Woodley [11] P Yes Yes Yes Yes No
Wang [14] R No Uncertain Uncertain Uncertain Yes
Table 2: Summary of Study Quality Assessment