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Table 1 Search strategy in Medline (Ovid)

From: Effectiveness of screening preschool children for amblyopia: a systematic review

  Search term Hits
1 exp CHILD/ 1129108
2 exp INFANT/ 692510
3 (baby or babies or newborn or neonat$).mp. 536032
4 exp schools/ 49523
5 exp CHILD-HEALTH-SERVICES/ 14438
6 exp CHILD-DAY-CARE-CENTERS/ 3371
7 (CHILD$ or ADOLESC$ or JUVENILE$ or MINOR$ or SCHOOL$ or KINDER-GARTEN$ or PRE?SCHOOL$ or NURSER$).ti. 529317
8 (CHILD$ or ADOLESC$ or JUVENILE$ or MINOR$ or SCHOOL$ or KINDER-GARTEN$ or PRE?SCHOOL$ or NURSER$).ab. 640000
9 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 2031820
10 exp strabismus/ 9863
11 exp amblyopia/ 4081
12 exp REFRACTIVE-ERRORS/ 17635
13 ((EYE$ or SIGHT$ or VI-SION$ or VISUAL$) adj4 (PROBLEM$ or DEFECT$ or IMPAIR$ or DEFICI$ or REDUC$)).mp. [mp = ti, ot, ab, nm, hw] 24836
14 (LAZY adj EYE$).mp. [mp = ti, ot, ab, nm, hw] 14
15 (AMBLYOPI$ or SQUINT$ or STRABISM$ or ANISO-METROPI$ or MYOPI$ or HYPERMETROPI$ or ASTIGMATI$ or AM-METROPI$ or HYPER-OPI$).mp. [mp = ti, ot, ab, nm, hw] 32219
16 cataract$.mp. 40130
17 microtropia.mp. 75
18 glaucoma.mp. 36328
19 retinoblastoma.mp. 14353
20 ((heredit$ or retinal or macular) and dystroph$).mp. 5741
21 refract$.mp. [mp = ti, ot, ab, nm, hw] 77398
22 exp vision, low/ 936
23 (SPECTACLES or GLASSES).mp. 4495
24 exp Cataract/ 16513
25 10 or 11 or 12 or 13 or 14 or 15 or 16 or 17 or 18 or 19 or 20 or 21 or 22 or 23 or 24 208688
26 (test or tests or testing).mp. 1383219
27 examination$.mp. 424043
28 ophthalmoscop$.mp. 9356
29 photoscreen$.mp. 95
30 (acuity or red reflex).mp. 46057
31 exp Vision Tests/or exp Visual Acuity/ 52117
32 exp Ophthalmoscopy/ 5116
33 (vision or visual).mp. 246181
34 (test$ or screen$).mp. 2011737
35 33 and 34 58712
36 (Hirschberg or Bruckner or motil$ or funduscop$ or cyclopleg$ or skiascop$).mp. [mp = ti, ot, ab, nm, hw] 67108
37 (Auto?refract$ or random?dot or stereoacuity or Snellen or Sheridan-Gardiner).mp. [mp = ti, ot, ab, nm, hw] 2475
38 (Cover?uncover or Alternate cover or Corneal reflex or PhotoScreener or Visiscreen).mp. [mp = ti, ot, ab, nm, hw] 330
39 (Retinomax or Suresight).mp. [mp = ti, ot, ab, nm, hw] 39
40 26 or 27 or 28 or 29 or 30 or 31 or 32 or 35 or 36 or 37 or 38 or 39 1844319
41 exp "Sensitivity and Specificity 211681
42 exp Diagnosis/ 3862053
43 diagnos$.mp. 1268941
44 sensitiv$.mp. 743123
45 predict$.mp. 485857
46 accura$.mp. 238100
47 41 or 42 or 43 or 44 or 45 or 46 5133424
48 9 and 25 and 40 and 47 9851
49 exp Contact Lenses/ 8117
50 exp Eyeglasses/ 4478
51 (refractive adj correct$).ti. 29
52 (refractive adj correct$).ab. 316
53 ((optic$ or vision$ or visual$ or filter$ or lens$ or glass$ or spectacle$) adj3 (occlusion or penali$ or patch$)).ti. 129
54 ((optic$ or vision$ or visual$ or filter$ or lens$ or glass$ or spectacle$) adj3 (occlusion or penali$ or patch$)).ab. 671
55 49 or 50 or 51 or 52 or 53 or 54 12865
56 exp clinical trials/ 190907
57 exp research design/ 212573
58 comparative study/or placebos.mp. 1341575
59 exp treatment outcome/ 283315
60 double-blind method/or single-blind method/ 98869
61 ((single or double or triple) adj blind$3).ti. 20568
62 ((single or double or triple) adj blind$3).ab. 78020
63 random$.ti. 56160
64 random$.ab. 364411
65 controlled clinical trial.pt. 73779
66 clinical trial.pt. 450604
67 (clinical adj trial$1).ti. 25698
68 (clinical adj trial$1).ab. 90789
69 (control$3 adj trial$1).ti. 15725
70 (control$3 adj trial$1).ab. 38465
71 randomized controlled trial.pt. 228874
72 exp RANDOM ALLOCATION/ 57826
73 exp PROSPECTIVE STUDIES/ 213531
74 exp Follow-Up Studies/ 332322
75 56 or 57 or 58 or 59 or 60 or 61 or 62 or 63 or 64 or 65 or 66 or 67 or 68 or 69 or 70 or 71 or 72 or 73 or 74 2474586
76 9 and 25 and 55 and 75 633
77 9 and 25 and 55 1765
78 screen$.mp. 287728
79 exp Neonatal Screening/ 3723
80 exp VISION TESTS/ 19699
81 exp MASS SCREENING/ 77069
82 78 or 79 or 80 or 81 309225
83 9 and 25 and 82 4644
84 48 or 76 or 83 10737
85 48 or 77 or 83 11540
86 (animals not human).sh. 4025575
87 85 not 86 11140