#1.

(obsessive compulsive disorder or compulsions or obsessions or body dysmorphic disorder) in DE,SU (6196 records)

#2.

obsessive compulsive neuros* or obsessive compulsive disorder* or obsession or obsessions or obsessional (8579 records)

#3.

OCD not osteochondr* (2409 records)

#4.

scrupulosity or body dysmorphi* or dysmorphophobi* or imagine* ugl* (446 records)

#5.

#1 or #2 or #3 or #4 (9446 records)

#6.

(burden near illness) or (burden near disease) or (cost* near evaluat*) or (cost* near benefit*) or (cost* near utilit*) or (cost* near minimi*) or (cost* near illness) or (cost* near disease) or (cost* near analys*) or (cost* near assess*) or (cost* near study) or (cost* near studies) or (cost* near allocation) or (cost* near outcome*) or (cost* near consequence*) or (cost* near offset*) or (cost* near off-set*) or (cost* near effect*) or (cost* near treatment*) (20441 records)

#7.

(economic near evaluat*) or (economic near analys*) or (economic near burden) or (economic near study) or (economic near studies) or (economic near assess*) or (economic near consequence*) or (economic near outcome*) or (health service* near (us* or utili*)) or (health care near (us* or utili*)) or (healthcare near (us* or utili*)) or health utility or health utilities or quality adjusted life year* or quality-adjusted-life-year* or qaly* or (resource near (us* or utili* or allocation*)) or expenditure* (38791 records)

#8.

explode ‘economics’ or explode ‘costs and cost analysis’ (9300 records)

#9.

#6 or #7 or #8 (57686 records)

#10.

#5 and #9 (141 records)

#1.

cost* (226082 records)

#2.

economic (75343 records)

#3.

health service or health care or healthcare (378473 records)

#4.

quality adjusted life year* or qaly or resource utili* or resource allocation* or expenditure* (34265 records)

#5.

(obsessive compulsive disorder or compulsive behavior or obsessive behavior) in KW,MESH,PS (7109 records)

#6.

obessive compulsive neuros* or obsessive compulsive disorder* or obsession or obsessions or obsessional (7133 records)

#7.

OCD not osteochondr* (1867 records)

#8.

scrupulosity or body dysmorphi* or dysmorphophobi* or imagine* ugl* (334 records)

#9.

#5 or #6 or #7 or #8 (8688 records)

#10.

#1 and #9 (105 records)

#11.

#2 and #9 (30 records)

#12.

#3 and #9 (216 records)

#13.

#4 and #9 (9 records)

#14.

#10 or #11 or #12 or #13 (318 records)

#1.

(obsessive compulsive disorder or compulsion or obsession or body dysmorphic disorder) in SU (8256 records)

#2.

obessive compulsive neuros* or obsessive compulsive disorder* or obsession or obsessions or obsessional (7554 records)

#3.

OCD not osteochondr* (2159 records)

#4.

scrupulosity or body dysmorphi* or dysmorphophobi* or imagine* ugl* (469 records)

#5.

#1 or #2 or #3 or #4 (9129 records)

#6.

(burden near illness) or (burden near disease) or (cost* near evaluat*) or (cost* near benefit*) or (cost* near utilit*) or (cost* near minimi*) or (cost* near illness) or (cost* near disease) or (cost* near analys*) or (cost* near assess*) or (cost* near study) or (cost* near studies) or (cost* near allocation) or (cost* near outcome*) or (cost* near consequence*) or (cost* near offset*) or (cost* near off-set*) or (cost* near effect*) or (cost* near treatment*) (91709 records)

#7.

(economic near evaluat*) or (economic near analys*) or (economic near burden) or (economic near study) or (economic near studies) or (economic near assess*) or (economic near consequence*) or (economic near outcome*) or (health service* near (us* or utili*)) or (health care near (us* or utili*)) or (healthcare near (us* or utili*)) or health utility or health utilities or quality adjusted life year* or quality-adjusted-life-year* or qaly* or (resource near (us* or utili* or allocation*)) or expenditure* (60659 records)

#8.

(explode ‘cost’/all subheadings or explode ‘economics’/all subheadings or explode ‘health economics’/all subheadings) in SU (154319 records)

#9.

#6 or #7 or #8 (218918 records)

#10.

#5 and #9 (242 records)

#1.

obsessive or compulsive or obsession or obsessions or obsessional or compulsion or compulsions or compusional or body dysmorphi* or dysmorphophobi* or OCD (116 records)

“obsess*” = 2