Table 2

Basic search strategy used for the review

S noKey terminology
1Community health worker.mp. or exp Community Health Workers/ 49 094 909
2Lay Health worker.mp.
3Health Promoter.mp.
4Community worker.mp.
5Health Services, Indigenous/ or aboriginal health worker.mp.
6Health Volunteer.mp.
7Community Health Workers/ or Community Health Volunteer.mp.
8Health Navigator.mp. or Patient Navigation/
91 or 2 or 3 or 4 or 5 or 6 or 7 or 8
10prevention.mp. or ‘CENTERS FOR DISEASE CONTROL AND PREVENTION (U.S.)’/ or SMOKING PREVENTION/ or exp SECONDARY PREVENTION/ or exp PRIMARY PREVENTION/
11Primary prevention.mp. or Primary Prevention/
12Preventive medicine.mp. or Preventive Medicine/
13Preventive care.mp. or Preventive Medicine/
14Disease Prevention.mp.
15Preventive healthcare.mp.
1610 or 11 or 12 or 13 or 14 or 15
17Primary health care.mp. or exp Primary Health Care/
18Primary healthcare services.mp.
19Community health care.mp. or Community Health Services/
20General Practice.mp. or Family Practice/ or General Practice/
21Family Practice/ or Primary Health Care/ or family medicine.mp.
2217 or 18 or 19 or 20 or 21
239 and 16 and 22
24limit 23 to (yr=“2000 -Current” and english)