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Table 5 Performance of the health-evidence.ca SR search filter compared to the PH search filter in retrieving systematic reviews in MEDLINE, EMBASE, CINAHL

From: An optimal search filter for retrieving systematic reviews and meta-analyses

MEDLINE

    

Search filter

Sensitivity

Specificity

Precision

Number needed to read

health-evidence.ca SR search filter†

    

Development

86.8 (75.2, 93.5)

99.2 (99.2, 99.2)

1.1 (0.9, 1.2)

91.6 (85.0, 105.9)

Validation

89.9 (85.0, 93.3)

98.9 (98.9, 98.9)

1.4 (1.3, 1.5)

71.4 (68.7, 75.5)

PH search filter‡

    

Development

86.8 (75.2, 93.5)

96.5 (96.5, 96.5)

0.3 (0.2, 0.3)

384.4 (356.0, 446.8)

Validation

92.3 (87.8, 95.2)

96.0 (96.0, 96.0)

0.4 (0.4, 0.4)

244.9 (237.1, 258.0)

EMBASE

Search filter

Sensitivity

Specificity

Precision

Number Needed to Read

health-evidence.ca SR search filter

    

Development

72.7 (55.8, 84.9)

99.1 (99.1, 99.1)

0.6 (0.4, 0.7)

171.6 (146.7, 224.6)

Validation

87.9 (80.2, 92.8)

98.2 (98.2, 98.2)

0.5 (0.5, 0.6)

186.0 (176.0, 208.9)

PH search filter

    

Development

48.5 (32.5, 64.8)

99.0 (99.0, 99.0)

0.3 (0.2, 0.5)

294.7 (219.4, 444.1)

Validation

63.6 (54.1, 72.0)

97.9 (97.9, 97.9)

0.3 (0.3, 0.4)

311.5 (273.6, 368.0)

CINAHL

Search filter

Sensitivity

Specificity

Precision

Number Needed to Read

health-evidence.ca SR search filter

    

Development

86.1 (71.4, 93.9)

98.1 (98.1, 98.1)

1.6 (1.4, 1.8)

61.3 (56.1, 74.3)

Validation

89.9 (93.5, 94.0)

97.6 (97.6, 97.6)

1.8 (1.6, 1.8)

57.2 (54.7, 61.7)

PH search filter

    

Development

86.1 (71.4, 93.9)

98.5 (98.5, 98.5)

2.1 (1.8, 2.3)

46.7 (42.7, 56.5)

Validation

37.2 (29.4, 45.8)

98.2 (98.2, 98.2)

1.0 (0.8, 1.2)

107.8 (86.8, 138.6)

  1. Values are in percentages (95% confidence intervals).
  2. †, ‡: see additional files for full search strategy.
  3. Abbreviations: SR – systematic review; PH – public health.