TABLE 16

Database search strategies for systematic review 2

Database search resultsNumber of papers
CINAHL434
Cochrane570
MEDLINE2726
EMBASE2259
Web of Science78
Total6067
Total after removal of duplicates5088
MEDLINE and EMBASE search strategy

1 age factors/ (339,379)

2 sex factors/ (190,416)

3 risk factors/ (466,520)

4 socioeconomic factors/ (94,879)

5 1 or 2 or 3 or 4 (931,516)

Factors effecting performance

6 Emergency Medical Service Communication Systems/ (1385)

7 emergency medical services/ (27,586)

8 emergency medical technicians/ (4414)

9 ambulances/ (4418)

10 transportation of patients/ (7475)

11 emergency service, hospital/ (35,248)

12 trauma centers/ (5254)

13 first aid/ (6667)

14 air ambulances/ (1586)

15 emergency medicine/ (8598)

16 intubation, intratracheal/ (26,814)

17 resuscitation/ (20,109)

18 infusions, intravenous/ (44,377)

19 critical care/ (22,332)

20 emergency treatment/ (7111)

21 or/6-20 (197,189)

Emergency services terms

22 quality of health care/ (49,639)

23 quality assurance, health care/ (44,252)

24 Prognosis/ (314,870)

25 treatment outcome/ (496,656)

26 time factors/ (908,764)

27 injury severity score/ (8750)

28 Trauma Severity Indices/ (4625)

29 survival rate/ (106,582)

30 survival analysis/ (85,469)

31 length of stay/ (48,560)

32 severity of illness index/ (136,335)

33 “Outcome and Process Assessment (Health Care)”/ (19,308)

34 “Outcome Assessment (Health Care)”/ (40,411)

35 hospitalization/ (61,536)

36 forecasting/ (65,384)

37 Glasgow Coma Scale/ (5589)

38 hospital mortality/ (17,030)

39 mortality/ (31,411)

40 or/22-39 (2,072,503)

Quality-of-care terms
41 5 and 21 and 40 (4901)

42 medical audit/ (13,307)

43 prospective studies/ (306,088)

44 retrospective studies/ (395,821)

45 evaluation studies as topic/ (119,831)

46 practice guidelines as topic/ (64,559)

47 health care surveys/ (19,579)

48 program evaluation/ (39,204)

49 cross-sectional studies/ (131,582)

50 follow-up studies/ (433,177)

51 cohort studies/ (127,326)

52 Cost-benefit analysis/ (52,318)

53 Chi-Square Distribution/ (47,593)

54 Pilot Projects/ (68,129)

55 research/ (163,768)

56 Randomized Controlled Trials as Topic/ (76,653)

57 “costs and cost analysis”/ (39,208)

58 or/42-57 (1,788,497)

Limit by study type
59 5 and 21 and 40 and 58 (2726)
Web of Science strategy
TS = (“age factor*” or “sex factor*” or “risk factor *” or “socioeconomic factor*”)Factors effecting performance
ts = (“emergency Medical Service Communication System*” or “emergency medical service” or “emergency medical technician” or ambulance* or “transportation of patient*” or “hospital emergency service” or “trauma center” or “first aid” or “emergency medicine” or “intratracheal intubation” or resuscitation or “intravenous intubation” or “critical care” or “emergency treatment”)Emergency services terms
ts = (“quality of health care” or “health care quality assurance” or prognosis or “treatment outcome” or “time factor*” or “injury severity score” or “trauma severity indices” or “survival rate” or “survival analysis” or “length of stay” or “severity of illness index” or “outcome and process assessment” or “outcome assessment” or hospitalization or forecasting or “glasgow coma scale” or “hospital mortality” or “mortality”)Quality of care terms
ts = (“medical audit” or “prospective stud*” or “evaluation stud*” or “practice guideline*” or “health care survey*” or “program evaluation” or “cross?sectional stud*” or “follow?up stud*” or “cohort stud*” or “cost?benefit analysis” or “chi-square distribution” or “pilot project*” or research or “randomized control trial*” or “costs and cost analysis”)Limit by study type
#1 and #2 and #3 and #4

From: Appendix 1, Systematic searches and summary of identified measures

Cover of Developing new ways of measuring the quality and impact of ambulance service care: the PhOEBE mixed-methods research programme
Developing new ways of measuring the quality and impact of ambulance service care: the PhOEBE mixed-methods research programme.
Programme Grants for Applied Research, No. 7.3.
Turner J, Siriwardena AN, Coster J, et al.
Southampton (UK): NIHR Journals Library; 2019 Apr.
Copyright © Queen’s Printer and Controller of HMSO 2019. This work was produced by Turner et al. under the terms of a commissioning contract issued by the Secretary of State for Health and Social Care. This issue may be freely reproduced for the purposes of private research and study and extracts (or indeed, the full report) may be included in professional journals provided that suitable acknowledgement is made and the reproduction is not associated with any form of advertising. Applications for commercial reproduction should be addressed to: NIHR Journals Library, National Institute for Health Research, Evaluation, Trials and Studies Coordinating Centre, Alpha House, University of Southampton Science Park, Southampton SO16 7NS, UK.

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