Supplemental Digital Content 1. Search strategies
Database Search term Number
Pubmed #1 "Aged"[Mesh] 2,690,068
#2 "Aged"[TIAB] OR "Elderly"[TIAB] 637,509
#3 "old"[TIAB] OR "old people"[TIAB] OR "older"[TIAB] OR "older people"[TIAB] OR "older adult"[TIAB] OR "older adults"[TIAB] OR "elder"[TIAB] OR
"elders"[TIAB] OR "elderly people"[TIAB] OR "elderly person"[TIAB] OR "aged people"[TIAB] OR "aged person"[TIAB] 1,207,198
#4 "Aging"[Mesh] 220,236
#5 "Aging"[TIAB] OR "Senescence"[TIAB] OR "Biological Aging"[TIAB] OR "Aging, Biologi"[TIAB] 174,039
#6 "Aged, 80 and over"[Mesh] 752,389
#7 "Aged, 80 and over"[TIAB] OR "Oldest Old"[TIAB] OR "Nonagenarians"[TIAB] OR "Nonagenarian"[TIAB] OR "Octogenarians"[TIAB] OR "Octogenarian"[TIAB] OR
"Centenarians"[TIAB] OR "Centenarian"[TIAB] 6,719
#8
(((((("Aged"[Mesh]) OR (("Aged"[TIAB] OR "Elderly"[TIAB]))) OR (("old"[TIAB] OR "old people"[TIAB] OR "older"[TIAB] OR "older people"[TIAB] OR "older adult"[TIAB] OR "older adults"[TIAB] OR "elder"[TIAB] OR "elders"[TIAB] OR "elderly people"[TIAB] OR "elderly person"[TIAB] OR "aged people"[TIAB] OR
"aged person"[TIAB]))) OR "Aging"[Mesh]) OR (("Aging"[TIAB] OR "Senescence"[TIAB] OR "Biological Aging"[TIAB] OR "Aging, Biologi"[TIAB]))) OR (("Aged, 80 and over"[Mesh]))) OR (("Aged, 80 and over"[TIAB] OR "Oldest Old"[TIAB] OR "Nonagenarians"[TIAB] OR "Nonagenarian"[TIAB] OR "Octogenarians"[TIAB] OR
"Octogenarian"[TIAB] OR "Centenarians"[TIAB] OR "Centenarian"[TIAB]))
4,011,558
#9 "Internet"[Mesh] 63,821
#10 "Internet"[TIAB] OR "Internets"[TIAB] OR "World Wide Web"[TIAB] OR "Web, World Wide"[TIAB] OR "Wide Web, World"[TIAB] 42,163
#11 "Internet use"[TIAB] 1,876
#12 "medical information"[TIAB] 6,569
#13 "Information Seeking Behavior"[Mesh] 1,425
#14 "Information Seeking Behavior"[TIAB] OR "Behavior, Information Seeking"[TIAB] OR "Behaviors, Information Seeking"[TIAB] OR "Information Seeking
Behaviors"[TIAB] OR "Seeking Behavior, Information"[TIAB] 574
#15 "information seeking"[TIAB] OR "Seeking"[TIAB] 64,567
#16 "health information seeking"[TIAB] 427
#17 "Information Literacy"[Mesh] 3,416
#18 "Information Literacy"[TIAB] OR "Information Literacies"[TIAB] OR "Literacies, Information"[TIAB] OR "Literacy, Information"[TIAB] 313
#19 "Computer Literacy"[Mesh] 1,584
#20 "Computer Literacy"[TIAB] OR "Computer Literacies"[TIAB] OR "Literacies, Computer"[TIAB] OR "Literacy, Computer"[TIAB] 359
#21 "Consumer Health Information"[Mesh] 6,009
#22 "Consumer Health Information"[TIAB] OR "Information, Consumer Health"[TIAB] OR "Health Information, Consumer"[TIAB] 425
#23 "Health Literacy"[Mesh] 3,354
#24 "Health Literacy"[TIAB] OR "Literacy, Health"[TIAB] 5,122
#25 "Social Media"[Mesh] 3,570
#26 "Social Media"[TIAB] OR "Media, Social"[TIAB] OR "Social Medium"[TIAB] OR "Mediums, Social"[TIAB] OR "Social Mediums"[TIAB] OR "Twitter
Messaging"[TIAB] OR "Messaging, Twitter"[TIAB] OR "Web 2.0"[TIAB] OR "2.0s, Web"[TIAB] OR "Web 2.0s"[TIAB] 5,407
#27 "Online"[TIAB] 72,508
#28
(((((((((((((((((("Internet"[Mesh]) OR (("Internet"[TIAB] OR "Internets"[TIAB] OR "World Wide Web"[TIAB] OR "Web, World Wide"[TIAB] OR "Wide Web,
World"[TIAB]))) OR "Internet use"[TIAB]) OR "medical information"[TIAB]) OR "Information Seeking Behavior"[Mesh]) OR (("Information Seeking Behavior"[TIAB]
OR "Behavior, Information Seeking"[TIAB] OR "Behaviors, Information Seeking"[TIAB] OR "Information Seeking Behaviors"[TIAB] OR "Seeking Behavior, Information"[TIAB]))) OR (("information seeking"[TIAB] OR "Seeking"[TIAB]))) OR "health information seeking"[TIAB]) OR "Information Literacy"[Mesh]) OR (("Information Literacy"[TIAB] OR "Information Literacies"[TIAB] OR "Literacies, Information"[TIAB] OR "Literacy, Information"[TIAB]))) OR "Computer Literacy"[Mesh]) OR (("Computer Literacy"[TIAB] OR "Computer Literacies"[TIAB] OR "Literacies, Computer"[TIAB] OR "Literacy, Computer"[TIAB]))) OR
"Consumer Health Information"[Mesh]) OR (("Consumer Health Information"[TIAB] OR "Information, Consumer Health"[TIAB] OR "Health Information,
Consumer"[TIAB))) OR "Health Literacy"[Mesh]) OR (("Health Literacy"[TIAB] OR "Literacy, Health"[TIAB]))) OR "Social Media"[Mesh]) OR (("Social Media"[TIAB]
219,977
OR "Media, Social"[TIAB] OR "Social Medium"[TIAB] OR "Mediums, Social"[TIAB] OR "Social Mediums"[TIAB] OR "Twitter Messaging"[TIAB] OR "Messaging, Twitter"[TIAB] OR "Web 2.0"[TIAB] OR "2.0s, Web"[TIAB] OR "Web 2.0s"[TIAB]))) OR "Online"[TIAB]
#29 #8 AND #28 34,908
#30 #29 + Filters: Publication date from 2010/01/01 to 2017/12/31 23,001
Embase #1 aged'/exp 2,577,444
#2 aged':ti,ab,kw OR 'elderly':ti,ab,kw 852,674
#3 old':ti,ab,kw OR 'old people':ti,ab,kw OR 'older':ti,ab,kw OR 'older people':ti,ab,kw OR 'older adult':ti,ab,kw OR 'older adults':ti,ab,kw OR 'elder':ti,ab,kw OR
'elders':ti,ab,kw OR 'elderly people':ti,ab,kw OR 'elderly person':ti,ab,kw OR 'aged people':ti,ab,kw OR 'aged person':ti,ab,kw 1,637,276
#4 aging'/exp 232,702
#5 aging':ti,ab,kw OR 'senescence':ti,ab,kw OR 'biological aging':ti,ab,kw OR 'aging, biologi':ti,ab,kw OR ageing:ti,ab,kw 264,112
#6 very elderly'/exp 109,622
#7 aged, 80 and over':ti,ab,kw OR 'oldest old':ti,ab,kw OR 'nonagenarians':ti,ab,kw OR 'nonagenarian':ti,ab,kw OR 'octogenarians':ti,ab,kw OR 'octogenarian':ti,ab,kw OR
'centenarians':ti,ab,kw OR 'centenarian':ti,ab,kw OR 'very elderly':ti,ab,kw 12,334
#8
aged'/exp OR 'aged':ti,ab,kw OR 'elderly':ti,ab,kw OR 'old':ti,ab,kw OR 'old people':ti,ab,kw OR 'older':ti,ab,kw OR 'older people':ti,ab,kw OR 'older adult':ti,ab,kw OR 'older adults':ti,ab,kw OR 'elder':ti,ab,kw OR 'elders':ti,ab,kw OR 'elderly people':ti,ab,kw OR 'elderly person':ti,ab,kw OR 'aged people':ti,ab,kw OR 'aged person':ti,ab,kw OR 'aging'/exp OR 'aging':ti,ab,kw OR 'senescence':ti,ab,kw OR 'biological aging':ti,ab,kw OR 'aging, biologi':ti,ab,kw OR ageing:ti,ab,kw OR 'very elderly'/exp OR 'aged, 80 and over':ti,ab,kw OR 'oldest old':ti,ab,kw OR 'nonagenarians':ti,ab,kw OR 'nonagenarian':ti,ab,kw OR 'octogenarians':ti,ab,kw OR 'octogenarian':ti,ab,kw OR 'centenarians':ti,ab,kw OR 'centenarian':ti,ab,kw OR 'very elderly':ti,ab,kw
4,387,486
#9 internet'/exp 91,490
#10 internet':ti,ab,kw OR 'internets':ti,ab,kw OR 'world wide web':ti,ab,kw OR 'web, worldwide':ti,ab,kw OR 'wide web, world':ti,ab,kw 55,452
#11 internet use':ti,ab,kw 2,404
#12 medical information':ti,ab,kw 8,885
#13 information seeking'/exp 2,118
#14 information seeking behavior':ti,ab,kw OR 'behavior, information seeking':ti,ab,kw OR 'behaviors, information seeking':ti,ab,kw OR 'information seeking
behaviors':ti,ab,kw OR 'seeking behavior, information':ti,ab,kw OR 'information seeking behaviour':ti,ab,kw 773
#15 information seeking':ti,ab,kw OR 'seeking':ti,ab,kw 80,256
#16 health information seeking':ti,ab,kw 411
#17 information literacy'/exp 369
#18 information literacy':ti,ab,kw OR 'information literacies':ti,ab,kw OR 'literacies, information':ti,ab,kw OR 'literacy, information':ti,ab,kw 359
#19 human computer interaction'/exp 1,584
#20 computer literacy':ti,ab,kw OR 'computer literacies':ti,ab,kw OR 'literacies, computer':ti,ab,kw OR 'literacy, computer':ti,ab,kw OR 'human computer interaction':ti,ab,kw
OR 'computer user training':ti,ab,kw 1,221
#21 consumer health information'/exp 3,189
#22 consumer health information':ti,ab,kw OR 'information, consumer health':ti,ab,kw OR 'health information, consumer':ti,ab,kw 458
#23 health literacy'/exp 6,221
#24 health literacy':ti,ab,kw OR 'literacy, health':ti,ab,kw 6,629
#25 social media'/exp 8,790
#26 social media':ti,ab,kw OR 'media, social':ti,ab,kw OR 'social medium':ti,ab,kw OR 'mediums, social':ti,ab,kw OR 'social mediums':ti,ab,kw OR 'twitter messaging':ti,ab,kw
OR 'messaging, twitter':ti,ab,kw OR 'web 2.0':ti,ab,kw OR '2.0s, web':ti,ab,kw OR 'web 2.0s':ti,ab,kw 7,077
#27 online':ti,ab,kw 96,256
#28
internet'/exp OR 'internet':ti,ab,kw OR 'internets':ti,ab,kw OR 'world wide web':ti,ab,kw OR 'web, worldwide':ti,ab,kw OR 'wide web, world':ti,ab,kw OR 'internet use':ti,ab,kw OR 'medical information':ti,ab,kw OR 'information seeking'/exp OR 'information seeking behavior':ti,ab,kw OR 'behavior, information seeking':ti,ab,kw OR 'behaviors, information seeking':ti,ab,kw OR 'information seeking behaviors':ti,ab,kw OR 'seeking behavior, information':ti,ab,kw OR 'information seeking
behaviour':ti,ab,kw OR 'information seeking':ti,ab,kw OR 'seeking':ti,ab,kw OR 'health information seeking':ti,ab,kw OR 'information literacy'/exp OR 'information literacy':ti,ab,kw OR 'information literacies':ti,ab,kw OR 'literacies, information':ti,ab,kw OR 'literacy, information':ti,ab,kw OR 'human computer interaction'/exp OR 'computer literacy':ti,ab,kw OR 'computer literacies':ti,ab,kw OR 'literacies, computer':ti,ab,kw OR 'literacy, computer':ti,ab,kw OR 'human computer interaction':ti,ab,kw OR 'computer user training':ti,ab,kw OR 'consumer health information'/exp OR 'consumer health information':ti,ab,kw OR 'information, consumer health':ti,ab,kw OR
291,525
'health information, consumer':ti,ab,kw OR 'health literacy'/exp OR 'health literacy':ti,ab,kw OR 'literacy, health':ti,ab,kw OR 'social media'/exp OR 'social media':ti,ab,kw OR 'media, social':ti,ab,kw OR 'social medium':ti,ab,kw OR 'mediums, social':ti,ab,kw OR 'social mediums':ti,ab,kw OR 'twitter messaging':ti,ab,kw OR 'messaging, twitter':ti,ab,kw OR 'web 2.0':ti,ab,kw OR '2.0s, web':ti,ab,kw OR 'web 2.0s':ti,ab,kw OR 'online':ti,ab,kw
#29 #8 AND #28 43,537
#30 #8 AND #28 AND [embase]/lim 31,991
#31 #8 AND #28 AND [embase]/lim AND [2010-2017]/py 22,323
Cochrane review
#1 [mh Aged] 1,155
#2 "Aged":ti,ab,kw or "Elderly":ti,ab,kw 400,530
#3 "old":ti,ab,kw or "old people":ti,ab,kw or "older":ti,ab,kw or "older people":ti,ab,kw or "older adult":ti,ab,kw or "older adults":ti,ab,kw or "elder":ti,ab,kw or
"elders":ti,ab,kw or "elderly people":ti,ab,kw or "elderly person":ti,ab,kw or "aged people":ti,ab,kw or "aged person":ti,ab,kw 48,384
#4 [mh Aging] 3,238
#5 "Aging":ti,ab,kw or "Senescence":ti,ab,kw or "Biological Aging":ti,ab,kw or "Aging, Biologi":ti,ab,kw 8,236
#6 [mh "Aged, 80 and over"] 121
#7 "Aged, 80 and over":ti,ab,kw or "Oldest Old":ti,ab,kw or "Nonagenarians":ti,ab,kw or "Nonagenarian":ti,ab,kw or "Octogenarians":ti,ab,kw or "Octogenarian":ti,ab,kw or
"Centenarians":ti,ab,kw or "Centenarian":ti,ab,kw 48,879
#8 {or #1-#7} 421,474
#9 [mh Internet] 3,015
#10 "Internet":ti,ab,kw or "Internets":ti,ab,kw or "World Wide Web":ti,ab,kw or "Web, World Wide":ti,ab,kw or "Wide Web, World":ti,ab,kw 6,290
#11 "Internet use":ti,ab,kw 112
#12 "medical information":ti,ab,kw 1,409
#13 [mh "Information Seeking Behavior"] 38
#14 "Information Seeking Behavior":ti,ab,kw or "Behavior, Information Seeking":ti,ab,kw or "Behaviors, Information Seeking":ti,ab,kw or "Information Seeking
Behaviors":ti,ab,kw or "Seeking Behavior, Information":ti,ab,kw 71
#15 "information seeking":ti,ab,kw or "Seeking":ti,ab,kw 3,938
#16 "health information seeking":ti,ab,kw 14
#17 [mh "Information Literacy"] 243
#18 "Information Literacy":ti,ab,kw or "Information Literacies":ti,ab,kw or "Literacies, Information":ti,ab,kw or "Literacy, Information":ti,ab,kw 29
#19 [mh "Computer Literacy"] 46
#20 "Computer Literacy":ti,ab,kw or "Computer Literacies":ti,ab,kw or "Literacies, Computer":ti,ab,kw or "Literacy, Computer":ti,ab,kw 73
#21 [mh "Consumer Health Information"] 356
#22 "Consumer Health Information":ti,ab,kw or "Information, Consumer Health":ti,ab,kw or "Health Information, Consumer":ti,ab,kw 163
#23 [mh "Health Literacy"] 242
#24 "Health Literacy":ti,ab,kw or "Literacy, Health":ti,ab,kw 639
#25 [mh "Social Media"] 67
#26 "Social Media":ti,ab,kw or "Media, Social":ti,ab,kw or "Social Medium":ti,ab,kw or "Mediums, Social":ti,ab,kw or "Social Mediums":ti,ab,kw or "Twitter
Messaging":ti,ab,kw or "Messaging, Twitter":ti,ab,kw or "Web 2.0":ti,ab,kw or "2.0s, Web":ti,ab,kw or "Web 2.0s":ti,ab,kw 266
#27 "Online":ti,ab,kw 5,393
#28 {or #9-#27} 15,653
#29 #8 and #28 5,988
#30 #29 + Publication Year from 2010 to 2017 4,569
CINAHL #1 (MH "Aged+") 610,394
#2 Aged OR Elderly 697,953
#3 old OR old people OR older OR older people OR older adult OR older adults OR elder OR elders OR elderly people OR elderly person OR aged people OR aged person 290,029
#4 (MH "Aging+") 39,392
#5 Aging OR Senescence OR Biological Aging OR Aging, Biologi 63,392
#6 (MH "Aged, 80 and Over") 214,556
#7 Aged, 80 and over OR Oldest Old OR Nonagenarians OR Nonagenarian OR Octogenarians OR Octogenarian OR Centenarians OR Centenarian 215,119
#8
(MH "Aged+") OR Aged OR Elderly OR old OR old people OR older OR older people OR older adult OR older adults OR elder OR elders OR elderly people OR elderly person OR aged people OR aged person OR (MH "Aging+") OR Aging OR Senescence OR Biological Aging OR Aging, Biologi OR (MH "Aged, 80 and Over") OR Aged,
80 and over OR Oldest Old OR Nonagenarians OR Nonagenarian OR Octogenarians OR Octogenarian OR Centenarians OR Centenarian 848,412
#9 (MH "Internet+") 113,025
#10 Internet OR Internets OR World Wide Web OR Web, World Wide OR Wide Web, World 110,981
#11 Internet use 965
#12 medical information 1,809
#13 (MH "Information Seeking Behavior") 3,056
#14 Information Seeking Behavior OR Behavior, Information Seeking OR Behaviors, Information Seeking OR Information Seeking Behaviors OR Seeking Behavior,
Information 3,220
#15 information seeking OR Seeking 29,532
#16 health information seeking 293
#17 (MH "Information Literacy+") 4,737
#18 Information Literacy OR Information Literacies OR Literacies, Information OR Literacy, Information 3,585
#19 (MH "Computer Literacy") 1,037
#20 Computer Literacy OR Computer Literacies OR Literacies, Computer OR Literacy, Computer 1,152
#21 (MH "Consumer Health Information+") 12,074
#22 Consumer Health Information OR Information, Consumer Health OR Health Information, Consumer 10,228
#23 (MH "Health Literacy") 2,029
#24 Health Literacy OR Literacy, Health 3,918
#25 (MH "Social Media") 5,619
#26 Social Media OR Media, Social OR Social Medium OR Mediums, Social OR Social Mediums OR Twitter Messaging OR Messaging, Twitter OR Web 2.0 OR 2.0s, Web
OR Web 2.0s 8,292
#27 Online 40,218
#28
(MH "Internet+") OR Internet OR Internets OR World Wide Web OR Web, World Wide OR Wide Web, World OR Internet use OR medical information OR (MH
"Information Seeking Behavior") OR Information Seeking Behavior OR Behavior, Information Seeking OR Behaviors, Information Seeking OR Information Seeking Behaviors OR Seeking Behavior, Information OR information seeking OR Seeking OR health information seeking OR (MH "Information Literacy+") OR Information Literacy OR Information Literacies OR Literacies, Information OR Literacy, Information OR (MH "Computer Literacy") OR Computer Literacy OR Computer Literacies OR Literacies, Computer OR Literacy, Computer OR (MH "Consumer Health Information+") OR Consumer Health Information OR Information, Consumer Health OR Health Information, Consumer OR (MH "Health Literacy") OR Health Literacy OR Literacy, Health OR (MH "Social Media") OR Social Media OR Media, Social OR Social Medium OR Mediums, Social OR Social Mediums OR Twitter Messaging OR Messaging, Twitter OR Web 2.0 OR 2.0s, Web OR Web 2.0s OR Online
187,173
#29 #8 AND #28 20,459
#30 #8 AND #28 [Limiters Published Date: 20100101-20171231] 12,674
KoreaMed #1 "Aged"[TW] OR "Elderly"[TW] OR "elder"[TW] OR "old"[TW] OR "older"[TW] OR "Aging"[TW] 62,596
#2 "Internet"[TW] OR "World Wide Web"[TW] OR "medical information"[TW] OR "Information Seeking Behavior"[TW] OR "Information Literacy"[TW] OR "Computer
Literacy"[TW] OR "Health Literacy"[TW] OR "Social Media"[TW] OR "Online"[TW] 1,232
#3
("Aged"[TW] OR "Elderly"[TW] OR "elder"[TW] OR "old"[TW] OR "older"[TW] OR "Aging"[TW]) AND ("Internet"[TW] OR "World Wide Web"[TW] OR "medical information"[TW] OR "Information Seeking Behavior"[TW] OR "Information Literacy"[TW] OR "Computer Literacy"[TW] OR "Health Literacy"[TW] OR "Social Media"[TW] OR "Online"[TW])
167
#4 ("Aged"[TW] OR "Elderly"[TW] OR "elder"[TW] OR "old"[TW] OR "older"[TW] OR "Aging"[TW]) AND "Internet"[TW] 794
#5 ("Aged"[TW] OR "Elderly"[TW] OR "elder"[TW] OR "old"[TW] OR "older"[TW] OR "Aging"[TW]) AND "World Wide Web"[TW] 26
#6 ("Aged"[TW] OR "Elderly"[TW] OR "elder"[TW] OR "old"[TW] OR "older"[TW] OR "Aging"[TW]) AND "medical information"[TW] 204
#7 ("Aged"[TW] OR "Elderly"[TW] OR "elder"[TW] OR "old"[TW] OR "older"[TW] OR "Aging"[TW]) AND "Information Seeking Behavior"[TW] 3
#8 ("Aged"[TW] OR "Elderly"[TW] OR "elder"[TW] OR "old"[TW] OR "older"[TW] OR "Aging"[TW]) AND "Information Literacy"[TW] 2
#9 ("Aged"[TW] OR "Elderly"[TW] OR "elder"[TW] OR "old"[TW] OR "older"[TW] OR "Aging"[TW]) AND "Computer Literacy"[TW] 4
#10 ("Aged"[TW] OR "Elderly"[TW] OR "elder"[TW] OR "old"[TW] OR "older"[TW] OR "Aging"[TW]) AND "Health Literacy"[TW] 46
#11 ("Aged"[TW] OR "Elderly"[TW] OR "elder"[TW] OR "old"[TW] OR "older"[TW] OR "Aging"[TW]) AND "Social Media"[TW] 17
#12 ("Aged"[TW] OR "Elderly"[TW] OR "elder"[TW] OR "old"[TW] OR "older"[TW] OR "Aging"[TW]) AND "Online"[TW] 268
#13 #4 and #5 and #6 and #7 and #8 and #9 and #10 and #11 and #12 and #13 and #14 1,205
#14 #13 + after 2010 556
