TableĀ 3

Comparison of search filter performance scores on comprehensiveness and efficiency expressed more user-friendly as the Number Needed to Read (NNR=1/precision), related to the capability to identify relevant articles on prognosis of work disability

Comprehensiveness (%) (95% CI)Efficiency (NNR) (95% CI)
Yale filter only14100103 (91 to 119)
Work disability Prognosis filter (R)90 (86 to 94)20 (17 to 23)
Work disability Prognosis filter (P)68 (61 to 74)13 (11 to 15)
Filter Haafkens1235 (28 to 41)19 (16 to 25)
Filter Verbeek1 (R)41 (35 to 48)57 (47 to 73)
Filter Verbeek1 (P)16 (11 to 21)39 (29 to 58)
Filter Gehanno10 (R)31 (25 to 37)11 (9 to 14)
Filter Gehanno10 (P)17 (12 to 22)5 (4 to 8)
  • A research (R) and practice (P) search filter on prognosis of work disability are compared with five other occupational health search filters developed by Haafkens, Verbeek (work component only of R and P) and Gehanno (R and P). All filters were applied in combination with the Yale methodological research filter for prognosis and natural history.