Table 2 Generic search strategy and adapted search strategy for MEDLINE yielding 5157 records

Generic search strategy

(celebrit* or ((professional or elit* or famous or public or renown* or well-known or acclaim* or eminent or prominent or illustrious or recogniz* or reput* or influential or wealth* or power*) adj1 (person* or people or figure* or leader or athlete* or player or bodybuilder or sport* or basketball or football or hockey or baseball or soccer or Olympian or singer* or songwriter* or musician* or band or group or rapper* or artist* or actor* or actress or star or Hollywood or Bollywood or Nollywood or dancer or writer or author or comedian or performer or model* or supermodel* or chef or philanthropist or politic* or president or minister or king or queen or prince* or monarch)))

AND

(health or wellness or wellbeing or aging or longevity or disorder* or disease* or cancer or epidemic or pandemic or disability or impair* or ill* or sick* or ailment or malady or syndrome* or infection* or mortality or morbidity or death or dead or injur* or accident* or pain or incident*)

AND

(communicat* or promot* or endors* or advert* or convinc* or market* or persua* or dissua* or sell* or sale* or publici* or awareness or campaign or ‘media coverage’ or announc* or message* or disclos* or advoca* or advis* or advice or counsel* or educat* or instruct* or teach* or inform* or misinform* or prevent* or learn* or behavior?r* or act* or practice* or habit* or lifestyle* or regime or choice* or decision* or prefer* or attitude* or know* or belief* or perception* or view* or react* or response* or respond or stigma* or understand* or opinion* or litera* or illitera* or misunderstand* or misconcept* or misconstruct* or disbelief)

AND

(quantitative or qualitative or empirical or data or statistic* or evidence or stud* or “multi?method*” or survey* or interview or “self report*” or poll* or sampl* or experiment* or measure* or analyz* or analys* or ‘focus group*’ or question* or query or queri* or observation* or “field stud*” or phenomenolog* or phenomenograph* or ethnolog* or ethnograph* or “action research” or “grounded theory” or “case stud*”)

AND

(effect* or affect* or impact* or differ* or compliance or comply or adher* or implement* or influenc* or chang* or measure* or constrain* or screen* or control* or deter* or reduc* or increase* or decreas* or inflat* or vary or variation* or varie*)

MEDLINE search strategy (yielding 5157 records)

1. celebrit*.ti,ab.

2. ((professional or elit* or famous or public or renown* or well-known or acclaim* or eminent or prominent or illustrious or recogniz* or reput* or influential or wealth* or power*) adj1 (person* or people or figure* or leader or athlete* or player or bodybuilder or sport* or basketball or football or hockey or baseball or soccer or Olympian or singer* or songwriter* or musician* or band or group or rapper* or artist* or actor* or actress or star or Hollywood or Bollywood or Nollywood or dancer or writer or author or comedian or performer or model* or supermodel* or chef or philanthropist or politic* or president or minister or king or queen or prince* or monarch)).ti,ab.

3. exp Famous Persons/

4. 1 or 2 or 3

5. exp Health Promotion/

6. exp preventive health services/or exp health education/

7. exp attitude to health/or exp health knowledge, attitudes, practice/

8. exp Health Communication/

9. exp health behavior/or exp information seeking behavior/

10. exp information dissemination/or exp information literacy/or exp health literacy/

11. exp Public Opinion/

12. (communicat* or promot* or endors* or advert* or convinc* or market* or persua* or dissua* or sell* or sale* or publici* or awareness or campaign or “media coverage” or announc* or message* or disclos* or advoca* or advis* or advice or counsel* or educat* or instruct* or teach* or inform* or misinform* or prevent* or learn* or behavior?r* or act* or practice* or habit* or lifestyle* or regime or choice* or decision* or prefer* or attitude* or know* or belief* or perception* or view* or react* or response or respond* or stigma* or understand* or opinion* or litera* or illitera* or misunderstand* or misconcept* or misconstruct* or disbelief).tw.

13. 5 or 6 or 7 or 8 or 9 or 10 or 11 or 12

14. (health or wellness or wellbeing or aging or longevity or disorder* or disease* or cancer or epidemic or pandemic or disability or impair* or ill* or sick* or ailment or malady or syndrome* or infection* or mortality or morbidity or death or dead or injur* or accident* or pain or incident*).tw.

15. exp Public Health/

16. 14 or 15

17. (quantitative or qualitative or empirical or data or statistic* or evidence or survey or stud* or interview or ‘self report*’ or poll* or experiment* or measure* or analyz* or analys* or ‘focus group*’ or question* or query or queri* or observation* or ‘field stud*’ or phenomenolog* or phenomenograph* or ethnolog* or ethnograph* or ‘action research’ or ‘grounded theory’ or ‘case stud*’ or ‘multi?method*’).mp.

18. exp empirical research/or exp qualitative research/

19. exp health surveys/or exp interviews as topic/or exp focus groups/or exp questionnaires/or exp self report/or exp sampling studies/or exp sample size/or exp observation/

20. 17 or 18 or 19

21. (effect* or affect* or impact* or differ* or compliance or comply or adher* or implement* or influenc* or chang* or measure* or constrain* or screen* or control* or deter* or reduc* or increase* or decreas* or inflat* or vary or variation* or varie*).tw.

22. 4 and 13 and 16 and 20 and 21