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. 2019 May 24;14(5):e0217406. doi: 10.1371/journal.pone.0217406

Table 3. Summary of included study characteristics.

Characteristics All unique studies Studies included MH-related indicators Studies MH-related potential PSIs were selected from
(79 studies) (70 studies) (59studies)
N (%) N (%) N (%)
Continent
Europe 42 (53.2%) 35 (50.0%) 27 (47.5%)
North America 24 (30.4%) 24 (34.3%) 22 (37.3%)
Asia 6 (67.7%) 5 (7.1%) 5 (8.5%)
International 3 (3.8%) 2 (2.9%) 2 (3.4%)
Australia 3 (3.8%) 3 (4.3%) 1 (1.7%)
South America 1 (1.3%) 1 (1.4%) 1 (1.7%)
Publication Year
1990–1999 3 (3.8%) 2 (2.9%) 2 (3.4%)
2000–2009 26 (32.9%) 23 (32.9%) 18 (30.5%)
2010–2019 47 (63.3%) 45 (64.3%) 39 (66.1%)
Targeted population
Elderly 40 (50.6%) 38 (54.3%) 31 (52.5%)
Not specified 20 (25.3%) 17 (24.3%) 15 (25.4%)
Adults 5 (6.3%) 5 (7.1%) 5 (8.5%)
Paediatric 4 (5.1%) 2 (2.9%) 2 (3.4%)
CKD 2 (2.5%) 1 (1.4%) 1 (1.7%)
All ages 1 (1.3%) 1 (1.4%) 1 (1.7%)
Middle aged 1 (1.3%) 1 (1.4%) 1 (1.7%)
Psychiatric 1 (1.3%) 1 (1.4%) 1 (1.7%)
Adults with bipolar disorder 1 (1.3%) 1 (1.4%) 1 (1.7%)
Severe dementia 1 (1.3%) 1 (1.4%) 1 (1.7%)
Elderly with Limited life expectancy 1 (1.3%) 1 (1.4%) -
Palliative with advanced dementia 1 (1.3%) 1 (1.4%) -
Complex elderly 1 (1.3%) - -
Targeted setting
Community 26 (32.9%) 22 (31.4%) 19 (32.2%)
Not specified 17 (21.5%) 17 (24.3%) 16 (27.1%)
Hospitals 11 (13.9%) 9 (12.9%) 8 (13.6%)
Multiple settings 11 (13.9%) 9 (12.9%) 6 (10.2%)
Long-term care 9 (11.4%) 8 (11.4%) 5 (8.5%)
Pharmacies 5 (6.3%) 5 (7.1%) 5 (8.5%)
Methods to identify indicatorsa Reported 75 (94.9%) Reported 66 (94.3%) Reported 56 (94.9%)
Literature review 41 (51.9%) 36 (51.4%) 33 (55.9%)
Experience 16 (20.3%) 16 (22.9%) 13 (22.0%)
Multiple selected tools b 16 (20.3%) 14 (20.0%) 11 (18.6%)
Guidelines 12 (15.2%) 9 (12.9%) 8 (13.6%)
Single selected tool c 9 (11.4%) 7 (10.0%) 6 (10.2%)
Textbooks d 7 (8.9%) 6 (8.6%) 5 (8.5%)
Older versions 7 (8.9%) 6 (8.6%) 5 (8.5%)
FDA black box warnings 3 (3.8%) 3 (4.3%) 3 (5.1%)
DDI references 3 (3.8%) 3 (4.3%) 3 (5.1%)
medication databases 1 (1.3%) 1 (1.4%) 1 (1.7%)
preliminary list 1 (1.3%) 1 (1.4%) -
Safety incidents 1 (1.3%) - -
Validation method Reported 72 (91.1%) Reported 65 (92.9%) Reported 55 (93.2%)
Delphi 38 (48.1%) 34 (48.6%) 29 (49.2%)
NS consensus 12 (15.2%) 11 (15.7%) 10 (16.9%)
RAM 10 (12.7%) 9 (12.9%) 8 (13.6%)
Expert panel 8 (10.1%) 7 (10.0%) 5 (8.5%)
NGT 2 (2.6%) 2 (2.9%) 1 (1.7%)
Consensus among research group 1 (1.3%) 1 (1.4%) 1 (1.7%)
Delphi and NGT 1 (1.3%) 1 (1.4%) 1 (1.7%)
Type of prescribing indicators
Process 75 (94.9%) 67 (95.7%) 56 (94.9%)
Outcome 4 (5.1%) 3 (4.3%) 3 (5.1%)
Number of indicators 4507 reported indicators 1386 MH related indicators
(1106 after removing duplicates and splitting indicators)
245 MH related PSIs e
Average (SD) 57 (SD = 59.8) 20 (SD = 25.1) -
Range 6–282 1–127 -

CKD: Chronic kidney disease. DDI: Drug-drug interactions. FDA: Food and Drug Administration. MH: Mental health. NGT: nominal group technique. NS: not specified. PSIs: Prescribing safety indicators. RAM: RAND/UCLA Appropriateness Method. SD: Standard deviation

a. The total percentage exceed 100% because most studies used more than one method.

b. These studies selected multiple previously published tools.

c. These studies selected one specific tool

d. These studies used selected textbooks.

e. The average, SD and range were not calculated for the potential PSIs because they were selected after removing duplicates and splitting indicators.