2.1 Übung: Analyse von Suchstrategien verschiedener Cochrane Reviews
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HANDOUTS
Systematische Literaturrecherche – Suchstrategien für Fortgeschrittene
XX. November 2020
2.1 Übung: Analyse von Suchstrategien verschiedener Cochrane Reviews
Aufgabe
Lesen Sie die folgenden Ovid MEDLINE Suchstrategien und beantworten Sie die folgenden
Fragen:
• Aus welchen Blöcken/Konzepten besteht die Suchstrategie? Wie sind diese
verknüpft?
• Entspricht die Suchstrategie den PICO-Schema?
• Wieso wurden Ihrer Meinung nach diese Struktur für die Suchstrategie gewählt?
Gibt es andere Ansätze die man ausprobieren könnte?
OVID MEDLINE SYNTAX - KURZÜBERSICHT
Detaillierte Informationen: http://ospguides.ovid.com/OSPguides/medline.htm
MeSH
exp aged/ → MeSH term mit Unterbegriffen (explosion)
aged/ → MeSH term ohne Unterbegriffe
*aged/ oder exp *aged/ → MeSH major focus
Food/ec [Economics] → MeSH mit subheading
Felder
ti: title
ab: abstract
kw: author keywords
pt: publication type
sh: MeSH term ohne Unterbegriffe
mp: multi-purpose, durchsucht mehrere Felder: title, abstract, original title, name of substance
word, subject heading word, floating sub-heading word, keyword heading word, organism
supplementary concept word, protocol supplementary concept word, rare disease supplementary
concept word, unique identifier, synonyms
Platzhalter
*,$ → steht für 0 oder beliebig viele Buchstaben
# → steht für genau 1 Buchstaben
? → steht für 0 oder 1 Buchstaben
Kontextoperatoren/Proximity Operators
x ADJ y → Suchbegriffe stehen nebeneinander in genau dieser Reihenfolge, z.B. ((general or family)
adj practi*)
x ADJn y → Suchbegriffe sind im Höchstabstand n (1-99) voneinander entfernt, in beliebiger
Reihenfolge, z.B. hospital adj3 discharge
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CROSS AJ, ELLIOTT RA, PETRIE K, KURUVILLA L, GEORGE J. INTERVENTIONS FOR IMPROVING
MEDICATION‐TAKING ABILITY AND ADHERENCE IN OLDER ADULTS PRESCRIBED MULTIPLE
MEDICATIONS. COCHRANE DATABASE OF SYSTEMATIC REVIEWS 2020, ISSUE 5. ART. NO.: CD012419.
DOI: 10.1002/14651858.CD012419.PUB2.
Objectives
To evaluate the effectiveness of interventions designed to improve medication‐taking ability and/or
medication adherence in older community‐dwelling people (or their carers) whose treatment
consists of multiple long‐term prescribed medications.
MEDLINE (Ovid SP) search strategy
Notizen Search
A. 1-4: Ältere 1. exp aged/
(inkl. 2. ((old or older or aged or senior) adj2 (person? or people or adult? or men or
Pflegepersonal women or patient* or consumer* or carer* or caregiver* or care giver*)).ti,ab,kw.
von Älteren)
3. (late life or ag?ing or old age or seniors).ti,ab,kw.
4. (elder* or geriatr* or gerontol* or geropsych* or veteran*).mp.
5. or/1‐4
B. 6-10: 6. exp Pharmaceutical Preparations/
medikamente
7. (medication* or medicine? or medicament* or pharmac* or drug? or
polypharmac*).ti,ab,kw.
8. exp drug therapy/
9. exp pharmaceutical services/
10. exp therapeutic uses/
11. or/6‐10
12. 5 and 11
C. 13-30: 13. primary health care/
setting
14. (primary adj2 (care or healthcare)).ti,ab,kw.
15. ambulatory care/
16. ambulatory.ti,ab,kw.
17. exp general practice/
18. general practitioners/
19. gp?.ti,ab,kw.
20. physicians primary care/
21. physicians family/
22. ((general or family) adj practi*).ti,ab,kw.
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23. exp ambulatory care facilities/
24. home care services/
25. exp community health services/
26. patient discharge/
27. (hospital adj3 discharge).ti,ab,kw.
28. continuity of patient care/
29. aftercare/
30. (community or home* or domicil* or outreach or out‐reach or postdischarge
or post‐discharge or postacute or post‐acute or discharge plan* or aftercare or
after care).ti,ab,kw.
31. or/13‐30
32. 12 and 31
D. 33-44: 33. patient education as topic/
Information
34. ((educat* or instruct* or advis* or advice* or counsel* or teach* or train* or
coach* or learn*) and (patient* or client* or consumer* or user* or carer* or
caregiver* or care giver*)).mp.
35. exp counseling/
36. information services/
37. drug information services/
38. (inform* adj5 (patient* or client* or consumer* or user* or carer* or
caregiver* or care giver*)).ti,ab,kw.
39. reminder systems/
40. drug packaging/
41. drug prescriptions/
42. medication therapy management/
43. ((patient* or client* or consumer* or user* or subject? or carer* or caregiver*
or care giver*) and (manag* adj5 (medication* or medicines))).ti,ab,kw.
44. pharmac* care.ti,ab,kw.
45. or/33‐44
E. 46-52: 46. medication adherence/ or patient compliance/
adherence
47. ((medication or treatment) adj (complian* or adheren* or noncomplian* or
nonadheren*)).ti,ab,kw.
48. self efficacy/
49. ((patient* or client* or consumer* or user* or subject? or carer* or caregiver*
or care giver*) and (competen* or confident or confidence or abilit* or capacit*
or skill* or self‐efficacy or cope? or coping or complian* or noncomplian* or
adher* or nonadher* or underadheren* or concordan* or nonconcordan* or
persisten* or nonpersist*)).ti,ab,kw.
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50. ((patient* or client* or consumer* or user* or subject? or carer* or caregiver*
or care giver*) adj5 (error* or mistak* or misus* or mismanag*)).ti,ab,kw.
51. (patient* or client* or consumer* or user* or subject? or carer* or caregiver*
or care giver*).ti,ab,kw. and medication errors/
52. self‐administration/
53. or/46‐52
54. 32 and (45 or 53)
F. 55-61: 55. randomized controlled trial.pt.
RCTs
56. controlled clinical trial.pt.
57. randomized.ab.
58. placebo.ab.
59. clinical trials as topic.sh.
60. randomly.ab.
61. trial.ti.
62. or/55‐61
63. 54 and 62
Notizen
Struktur: A AND B AND C AND (D OR E) AND F
Population: "older community‐dwelling people (or their carers) whose treatment consists of
multiple long‐term prescribed medications"
➔ ist in 3 Blöcke unterteilt: Alter, Medikamente, Setting -> AND-Verknüpfung
Intervention: "interventions designed to improve medication‐taking ability and/or medication
adherence"
➔ ist in 2 Blöcke aufgeteilt: Information, Adherence -> OR-Verknüpfung => diese Aufteilung
hat keinen Einfluss auf das Suchergebnis, aber mach die Suche eventuell einfacher lesbar
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DURAO S, VISSER ME, RAMOKOLO V, OLIVEIRA JM, SCHMIDT B-M, BALAKRISHNA Y, BRAND A,
KRISTJANSSON E, SCHOONEES A. COMMUNITY‐LEVEL INTERVENTIONS FOR IMPROVING ACCESS
TO FOOD IN LOW‐ AND MIDDLE‐INCOME COUNTRIES. COCHRANE DATABASE OF SYSTEMATIC
REVIEWS 2020, ISSUE 8. ART. NO.: CD011504. DOI: 10.1002/14651858.CD011504.PUB3.
Primary objective
To determine the effects of community‐level interventions that aim to improve access to nutritious
food in low‐ and middle‐income countries (LMICs), for both the whole community and for
disadvantaged or at‐risk individuals or groups within a community, such as infants, children and
women; elderly, poor or unemployed people; or minority groups.
Secondary objectives
To determine the features of community‐level interventions that enable or impair the effective
implementation of these interventions to improve access to food.
To identify unintended consequences of interventions to improve access to food.
Ovid MEDLINE(R) ALL 1946 to 13 February 2020
Notizen # Searches Results
A. 1-8: 1 *Nutritional Status/ 24020
outcome:
nutrition
status/access to
food
2 *Diet/ 75748
3 *Body Mass Index/ 20334
4 *Food Supply/ 8018
5 *Nutrition Assessment/ 7302
6 (nutrition* or food? or diet*).ti. 379668
7 ((diet* or food? or nutrition*) adj (status or consumption or 44392
diversity)).ab.
8 ((improv* or increas* or enhanc* or influenc*) adj3 (diet* or 5207
food? or nutrition*) adj3 (health* or access* or consum*)).ab.
9 or/1‐8 453177
B. 10-17: 10 *Social Welfare/ 5470
community-
level
interventions
11 *Community Health Services/ 19647
12 *Public Assistance/ 1679
13 *Financing, Government/ 8775
14 *Government Programs/ 2776
15 *Community Participation/ 9614
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16 ((social or economic or welfare or agricultural or labo?r or 49542
antipoverty or anti‐poverty) adj (program* or service? or support
or intervention*)).ti,ab.
17 ((food? or diet* or nutrition* or vegetable? or fruit? or 15688
agricultural) adj (class* or session* or program* or service? or
production)).ti,ab.
18 or/10‐17 110111
19 9 and 18 8935
C. 20-27: food 20 ((food or nutrition*) adj (secur* or insecur* or poverty or 9377
economy sufficien* or insufficien*)).mp.
specific terms
21 ((food or foods or foodstuff* or fruit? or vegetable? or grocer* 3022
or nutrition*) adj1 (budget* or shopping or purchas* or expend*
or spend* or spent or buy* or acquisition or acquir*)).mp.
22 ((tax or taxes or taxation or subsidy or subsidies or subsidi?ed or 907
voucher* or coupon* or discount* or stamp?) adj2 (food or
foods or foodstuff* or grocer* or fruit* or vegetable* or
nutrition* or meal or meals)).mp.
23 ((cash or in‐kind or price) adj (transfer* or subsidy or 733
subsidies)).mp.
24 (food adj (assistance or aid)).mp. 1570
25 Food Assistance/ 976
26 Food/ec [Economics] 1172
27 Diet/ec [Economics] 987
28 or/19‐27 23384
29 exp animals/ not humans/ 4673892
Tierstudien 30 28 not 29 22037
ausgeschlossen
D. 31- 31 (Afghan* or Bangladesh* or Benin* or Burkina Faso or 840737
40:Setting Burkinabe or Burundi* or Cambodia* or Central African
LMICs Republic or Central African* or Chad* or Comoros or
Comorian* or Congo* or Eritrea* or Ethiopia* or Gambia* or
Ghana* or Guinea‐Bissau* or Haiti* or Kenya* or Kyrgyz
Republic or Kyrgyzstani or Lao* or Liberia* or Madagascar or
Malagasy or Malawi* or Mali* or Mauritania* or Mozambique
or Mozambican or Myanmar* or Burma or Burmese or Nepal*
or Niger* or Rwanda* or Sierra Leone* or Solomon Islands or
Solomon Islanders or Somali* or Tajikistan* or Tanzania* or
Togo* or Uganda* or Zambia* or Zimbabwe*).mp.
32 (Angola* or Armenia* or Belize* or Bhutan* or Bolivia* or 920050
Cameroon* or Cape Verd* or China or Chinese or Cote dIvoire
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or Ivorian or Djibouti or Ecuador* or Egypt* or El Salvador or
Salvadoran or Guatemala* or Guyana or Guyanese or Hondura*
or India* or Indonesia* or Iraq* or Jordan* or Kiribati or
Kosov* or Lesotho or Mosotho or Basotho or Maldiv* or
Marshall Islands or Marshallese or Micronesia* or Moldova* or
Mongolia* or Morocc* or Nicaragua* or Nigeria* or Pakistan*
or Papua New Guinea* or Paraguay* or Philippines or Filipino
or Samoa* or Senegal* or Sri Lanka* or Sudan* or Swaziland or
Swazi or Syrian Arab Republic or Syria* or Thailand or Thai or
Timor Leste or East Timorese or Tonga* or Tunisia* or
Turkmen* or Tuvalu* or Ukrain* or Uzbekistan* or Uzbek or
Vanuatu or Vietnam* or West Bank or Gaza or Palestinian* or
Yemen*).mp.
33 (Albania* or Algeria* or American Samoa or Antigua* or 625717
Barbuda* or Argentin* or Azerbaijan* or Belarus* or Bosnia*
or Herzegovin* or Botswana or Motswana or Batswana or
Brazil* or Bulgaria* or Chile* or Colombia* or Costa Rica* or
Cuba* or Dominica* or Dominican Republic or Fiji* or Gabon*
or Grenad* or Iran* or Jamaica* or Kazakhstan* or Leban* or
Libya* or Lithuania* or Macedonia* or Malaysia* or Mauriti*
or Mayotte or Mahoran or Mexic* or Montenegr* or Namibia*
or Palau* or Panama* or Peru* or Romania* or Russia* or
Serbia* or Seychell* or South Africa* or St Lucia* or
Suriname* or Turk* or Uruguay* or Venezuela*).mp.
34 Developing Countries/ 73775
35 (lmic or lmics).mp. 4361
36 ((low income or medium income) adj5 (country or countries or 8741
nation or nations or state or states)).mp.
37 (least developed adj (country or countries or nation or nations or 257
state or states)).mp.
38 (developing adj (countr* or nation? or state?)).mp. 125319
39 ((united nations or world health organization or world bank or 340
unicef) and ((food or nutrition*) adj3 (program* or project* or
fund))).mp.
40 or/31‐39 2305368
41 30 and 40 7034
E. 42-50: study 42 (randomized controlled trial or controlled clinical trial).pt. 589397
types
43 random*.mp. 1339226
44 comparative study.pt. 1854534
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45 control groups/ or control group*.mp. or follow‐up studies/ or 1813129
follow‐up stud*.mp. or follow‐up assessment.mp. or prospective
studies/ or prospectiv*.mp. or non‐random*.mp. or
nonrandom*.mp.
46 (before after stud* or (time and series) or retrospective* or 1459595
longitud* or (controlled and cohort* and stud*)).mp.
47 "before and after".mp. 266393
48 (controlled before or pre test or pretest or posttest or post test or 43847
pre intervention or post intervention).mp.
49 controlled before‐after studies/ or interrupted time series 1253
analysis/
50 or/42‐49 5401950
51 41 and 50 1621
Late limit 52 limit 51 to yr="1980 ‐Current" 1615
Notizen
Struktur der Suche:
((A AND B) OR C) AND D AND E
Verwendet PICO Blöcke: Outcome, Intervention
Es gibt auch einen Block, bei dem es um ökonomische Fragen von Ernährung geht: Sie
Suchbegriffe beziehen sich zum Teil auf Interventionen (food aid), zum Teil auf Outcomes (food
security)
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KROGSBØLL LT, JØRGENSEN KJ, GØTZSCHE PC. GENERAL HEALTH CHECKS IN ADULTS FOR
REDUCING MORBIDITY AND MORTALITY FROM DISEASE. COCHRANE DATABASE OF SYSTEMATIC
REVIEWS 2019, ISSUE 1. ART. NO.: CD009009. DOI: 10.1002/14651858.CD009009.PUB3.
Objectives
To quantify the benefits and harms of general health checks.
Ovid MEDLINE(R) Epub Ahead of Print, In‐Process & Other Non‐Indexed Citations, Ovid
MEDLINE(R) Daily, Ovid MEDLINE and Versions(R) 1946 to January 24, 2018
Notizen # Search terms Results
A. 1-12: 1 physical examination/ and ((annual or gp or periodic or yearly or 2518
annual health routine).ti. or ((primary adj2 (care or healthcare)) or primary
checks health* or general practitioner? or general practice or family
doctor? or family practice? or family physician?).ti,ab.)
2 (health check* or healthcheck* or annual physical? or annual 1250
medical or medical check* or primary care check* or wellness
check* or well care or wellcare or well woman or well visit?).ti.
3 ((annual or periodic or regular or routine or yearly) and (check* 1036
or health* exam* or health evaluation? or medical exam* or
physical? exam* or wellness check* or gp visit? or physician?
visit? or doctor? visit? or office visit?)).ti.
4 ((annual or yearly) adj2 (medical? or physical?)).ti. 321
5 ((annual or yearly) and visit?).ti. 85
6 (preventive? and (care check* or checkup? or check‐up? or visit? 951
or exam* or family doctor? or gp or family physician? or general
practitioner?)).ti.
7 ((multifactor* or multi‐factor*) adj5 prevent*).ti,ab. 587
8 (multiphasic adj2 (screening or test* or check*)).ti,ab. 591
9 comprehensive health test.ti,ab. 1
10 general health screening.ti,ab. 123
11 multiphasic screening/ 1082
12 ((diet or smoking or exercise or lifestyle or weight reduction or 6239
physical activity) and (screen* or check?) and (prevention or
preventive or preventative)).ti,ab,hw.
13 or/1‐12 13270
B. 14-16: 14 mass screening/ 92462
mass
screening
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15 ((general or prevent* or systematic or annual or yearly or 43412
periodic or regular or routine) adj5 (screen* or check? or
checkup? or check‐up?)).ti,ab.
16 (health check* or health screen*).ti,ab. 8610
17 or/14‐16 131434
C. 18-32: 18 exp primary health care/ 133960
setting
primary care
19 family practice/ 63685
20 physicians, primary care/ 2461
21 general practice/ 11224
22 physicians, family/ 15722
23 general practitioners/ 5889
24 exp outpatient clinics, hospital/ 16432
25 ambulatory care/ 39769
26 exp ambulatory care facilities/ 50872
27 exp community health services/ 275718
28 exp community health centers/ 11479
29 ((primary or communit*) adj5 (care or health*)).ti,ab. 199287
30 (family practi* or family doctor* or family physician* or gp* or 232557
general practi*).ti,ab.
31 ((outpatient? or ambulatory) adj2 (care or healthcare or clinic? or 51853
service? or facilit*)).ti,ab.
32 or/18‐31 840499
33 17 and 32 21387
34 13 or 33 33148
D. 35-44: 35 exp randomized controlled trial/ 452334
RCTs
36 controlled clinical trial.pt. 92108
37 randomi#ed.ti,ab. 515152
38 placebo.ab. 185896
39 randomly.ti,ab. 284700
40 Clinical Trials as topic.sh. 182333
41 trial.ti. 176954
42 or/35‐41 1165471
43 exp animals/ not humans/ 4418500
Tierstudien 44 42 not 43 1074971
ausgeschloss
en
45 34 and 44 3608
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Zeiteinschrän 46 (2012* or 2013* or 2014* or 2015* or 2016* or 2017* or 7162115
kung 2018*).dc,dp,ed,ep,yr.
47 45 and 46 1380
Notizen
Struktur: (A OR (B AND C) AND D
Die Suche besteht nur aus einem PICO Element, der Intervention (general health checks).
Danach wird nach 2 unterschiedlichen Methoden gesucht. Einerseits als 1 Block (annual health
checks) und anderseits aufgeteilt in 2 Blöcke (Untersuchung+Primärversorgung)
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Leon N, Balakrishna Y, Hohlfeld A, Odendaal WA, Schmidt B-M, Zweigenthal V, Anstey Watkins J,
Daniels K. Routine Health Information System (RHIS) improvements for strengthened health system
management. Cochrane Database of Systematic Reviews 2020, Issue 8. Art. No.: CD012012. DOI:
10.1002/14651858.CD012012.pub2.
Objectives
To assess the effects of interventions to improve routine health information systems in terms of their
performance, and also, in terms of improved health system management performance, and
improved patient and population health outcomes.
MEDLINE and Epub Ahead of Print, In‐Process & Other Non‐Indexed Citations and
Daily 1946 to 14 May 2019, Ovid (searched 15 May 2019)
Notizen # Searches Results
A. 1-13: 1 Health Information Systems/ 1099
health info
systems
(Mesh)
2 Hospital Information Systems/ 10817
3 Management Information Systems/ 3679
4 Ambulatory Care Information Systems/ 1166
5 Clinical Laboratory Information Systems/ 2026
6 Clinical Pharmacy Information Systems/ 1177
7 Radiology Information Systems/ 5555
8 Medical Order Entry Systems/ 2098
9 "Personnel Staffing and Scheduling Information Systems"/ 425
10 Health Information Management/ 745
11 Decision Support Systems, Management/ 946
12 Health Information Exchange/ 696
13 or/1‐12 28441
B. 14-30: 14 Health Records, Personal/ 1389
Health
Records
(Mesh)
15 Medical Records/ 64765
16 Dental Records/ 3195
17 Hospital Records/ 3304
18 Nursing Records/ 6570
19 Medical Records Systems, Computerized/ 18912
20 Electronic Health Records/ 16344
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21 Health Smart Cards/ 44
22 Registries/ 80134
23 Computer Communication Networks/ 13458
24 Decision Support Systems, Clinical/ 7187
25 Medical Informatics/ 11059
26 Dental Informatics/ 167
27 Nursing Informatics/ 1462
28 Public Health Informatics/ 1134
29 Medical Informatics Applications/ 2405
30 Medical Record Linkage/ 4498
31 or/14‐30 219461
C. 32-34: 32 Information Systems/ 18754
Information
System
(Mesh)
33 Information Management/ 3466
34 Information Dissemination/ 15326
35 or/32‐34 37069
36 31 and 35 7261
D. 37-56: 37 ((routin* adj3 health* info*) or (routin* adj3 health care info*) 1029
health info or (routin* adj3 health* data) or (routin* adj3 health care data) or
systems (routin* adj3 medical info*) or (routin* adj3 medical data) or
(Freitext) (routin* adj3 clinical info*) or (routin* adj3 clinical data) or
(routin* adj3 management info*)).ti,ab,kf.
38 ((manage* adj3 health* info*) or (manage* adj3 health care 3909
info*) or (manage* adj3 health* data) or (manage* adj3 health
care data) or (manage* adj3 medical info*) or (manage* adj3
medical data) or (manage* adj3 clinical info*) or (manage* adj3
clinical data) or (manage* adj3 management info*)).ti,ab,kf.
39 ((health* system? or health care system?) and (health* info* or 2453
health care info* or medical info*)).ti,ab,kf.
40 (health* info* system? or health care info* system?).ti,ab,kf. 3825
41 management info* system?.ti,ab,kf. 975
42 admin* info* system?.ti,ab,kf. 26
43 ((human resources or HR or personnel or staff) adj info* 27
system?).ti,ab,kf.
44 financial info* system?.ti,ab,kf. 33
45 medical info* system?.ti,ab,kf. 878
46 clinical info* system?.ti,ab,kf. 1573
47 hospital info* system?.ti,ab,kf. 2497
48 pharmacy info* system?.ti,ab,kf. 109
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49 laboratory info* system?.ti,ab,kf. 942
50 radiology info* system?.ti,ab,kf. 549
51 info* management system?.ti,ab,kf. 1251
52 (health* info* exchange or health care info* exchange).ti,ab,kf. 904
53 (decision support system? and (health* info* or health care info* 380
or medical info*)).ti,ab,kf.
54 (decision support tool? and (health* info* or health care info* or 90
medical info*)).ti,ab,kf.
55 ((computer adj2 system?) and (paper adj2 system?)).ti,ab,kf. 45
56 ((computer adj2 system?) and (manual adj2 system?)).ti,ab,kf. 48
57 or/37‐56 18359
58 13 or 36 or 57 48140
E. 59-70: 59 randomised controlled trial.pt. 482050
Studientypen
60 controlled clinical trial.pt. 93069
61 multicenter study.pt. 250148
62 pragmatic clinical trial.pt. 1052
63 non‐randomized controlled trials as topic/ 492
64 interrupted time series analysis/ 576
65 controlled before‐after studies/ 391
66 (randomis* or randomiz* or randomly).ti,ab. 828787
67 groups.ab. 1913283
68 (intervention? or effect? or impact? or trial or multicenter or 2205656
multi center or multicentre or multi centre).ti.
69 (controlled or control group? or (before adj5 after) or (pre adj5 4383382
post) or ((pretest or pre test) and (posttest or post test)) or
quasiexperiment* or quasi experiment* or evaluat* or time series
or time point? or repeated measur*).ti,ab.
70 or/59‐69 7278095
F. 71-81: 71 exp Animals/ 22309732
Studientyp-
Ausschlüsse
72 Humans/ 17729800
73 71 not (71 and 72) 4579932
74 review.pt. 2512650
75 meta analysis.pt. 100849
76 news.pt. 195126
77 comment.pt. 774092
78 editorial.pt. 490818
79 cochrane database of systematic reviews.jn. 14157
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80 comment on.cm. 774036
81 (systematic review or literature review).ti. 131254
82 or/73‐81 8242826
83 70 not 82 5336390
84 58 and 83 10915
Notizen
Struktur: (A OR (B AND C) OR D) AND (E NOT F)
Die Suche besteht nur aus einem PICO Element, der Intervention (health information systems).
Danach wird nach 3 unterschiedlichen Methoden gesucht.
1. Mesh terms für das Gesamt-Konzept
2. Mesh terms als Kombination aus 2 Konzepten (Patientendaten+Informationssysteme
3. Freitext für das Gesamt-Konzept
Außerdem werden auch bei der Suche nach Studiendesigns 2 Blöcke verwendet: Einer mit
Studiendesign Begriffen und einer, der Tierstudien, Reviews und Kommentare ausschließt.
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