Exemplary search terms (MEDLINE via OVID)
| Search # | Terms used | No. of hits |
| 1 | Exp Dementia/ | 148 649 |
| 2 | Dement*.mp | 114 488 |
| 3 | Amentia*.mp | 102 |
| 4 | (major adj3 cognit* adj3 disorder*).mp | 159 |
| 5 | (alzheimer* or alzeimer* or (cortical adj4 sclerosis)).mp | 140 775 |
| 6 | ((encephalopath* or cogniti* or neurocogniti*) adj4 (aids or acquired immun?deficiency syndrome or acquired immun? deficiency syndrome or hiv or human immun?deficiency virus or human immun? deficiency virus)).mp | 3302 |
| 7 | ‘Pick Disease of the Brain’/ | 495 |
| 8 | (Pick* disease).mp | 3308 |
| 9 | (lobar adj3 atroph* adj3 brain).mp | 10 |
| 10 | Huntington Disease/ | 11 069 |
| 11 | (Huntington* disease).mp | 16 193 |
| 12 | (Huntington* chorea).mp | 1349 |
| 13 | Lewy Body Disease/ | 2761 |
| 14 | (Lewy bod* adj3 disease).mp | 4240 |
| 15 | (cerebr* adj3 deteriorat*).mp | 361 |
| 16 | (cerebr* adj3 insufficien*).mp | 2079 |
| 17 | ((frontotemporal or fronto temporal or corticobasal or cortico basal or frontal lobe*) adj4 (degenerati* or dysfunction*)).mp | 5217 |
| 18 | ((cognit* or memory or cerebr*) adj3 (declin* or impair* or los* or deteriorat* or degenerat* or insufficen*)).mp | 106 843 |
| 19 | Cognitive Dysfunction/ | 8749 |
| 20 | (MCI or (mild adj2 cognit* impair*)).ti,ab. | 20 332 |
| 21 | Or/1–20 | 314 147 |
| 22 | (Intervention* or therap* or treatment* or program* or manage* or prevent* or diagnos* or polic*).mp | 12 485 776 |
| 23 | exp Cognitive Therapy/ | 23 692 |
| 24 | (cognit* adj3 therap*).mp | 30 470 |
| 25 | (cognit* psycho therap* or cognit* psychotherap*).mp. | 119 |
| 26 | (cognit* adj3 training).mp | 3571 |
| 27 | (cognit* adj3 rehab*).mp | 1911 |
| 28 | Or/23– 27 | 36 923 |
| 29 | exp Drug Therapy/ | 1 246 404 |
| 30 | (Drug* or medicine* or pharmacotherap* or pharmaco* therap*).ti,ab. | 1 838 638 |
| 31 | exp Cholinesterase Inhibitors/ | 47 229 |
| 32 | cholinesterase agent*.mp | 30 |
| 33 | cholinesterase inhibitor*.mp | 21 340 |
| 34 | exp Antipsychotic Agents/ | 115 322 |
| 35 | (Tranquili* adj3 (agent* or drug*)).mp | 12 096 |
| 36 | Antipsychotic*.mp | 63 916 |
| 37 | (neuroleptic adj3 (agent* or drug*)).mp | 3296 |
| 38 | exp Serotonin Uptake Inhibitors/ | 34 982 |
| 39 | (serotonin uptake inhibitor* or serotonin reuptake inhibitor*).mp or ssri*.ti,ab | 25 984 |
| 40 | exp Benzodiazepines/ | 62 786 |
| 41 | Benzodiazepine*.mp | 42 836 |
| 42 | exp ‘Hypnotics and Sedatives’/ | 115 358 |
| 43 | (Sedative adj3 (effect* or agent*)).mp | 5467 |
| 44 | (memantine or donepezil or rivastigmine or galantamine or souvenaid or risperidone or haloperidol or olanzapine or quetiapine or citalopram or dextromethorphan or carbamazepine or mirtazapine or sertraline or moclobemide or trazodone or melatonin or ramelteon or methylphenidate).mp | 105 057 |
| 45 | Or/29– 44 | 3 080 487 |
| 46 | exp Exercise Therapy/ | 42 856 |
| 47 | Exercis*.mp | 335 419 |
| 48 | (Physical activit* or physical training).mp. | 99 409 |
| 49 | (Aerobic* or arobic*).mp | 81 338 |
| 50 | exp Exercise/ | 166 405 |
| 51 | Or/46– 50 | 497 630 |
| 52 | (social adj3 activit*).mp | 9247 |
| 53 | (social adj3 engag*).mp | 2774 |
| 54 | (social adj3 stimul*).mp | 2178 |
| 55 | Or/52– 54 | 14 003 |
| 56 | exp Psychotherapy/ | 180 508 |
| 57 | (psycholog* therap* or psychotherap*).mp | 85 389 |
| 58 | ((behavio?r* adj3 therap*) or (conditioning adj3 therap*)).mp | 47 185 |
| 59 | exp Counseling/ | 40 343 |
| 60 | Counsel?ing.mp | 89 908 |
| 61 | psychosocial support systems/ | 145 |
| 62 | ((Psychosocial or psycho social) adj3 (support or interven* or care)).ti,ab | 11 193 |
| 63 | Or/56– 62 | 315 606 |
| 64 | exp Complementary Therapies/ | 208 840 |
| 65 | ((Alternative or compl?ment* or traditional) adj3 (medicine* or therap*)).mp | 101 303 |
| 66 | Acupunct*.mp | 25 265 |
| 67 | (herb* adj3 (tea or remedy or remedies or medicine*)).ti,ab. | 16 075 |
| 68 | Gingko.ti,ab | 346 |
| 69 | homeopath*.mp | 6178 |
| 70 | ((music or art or aroma or light or photo or pet or pets) adj3 therap*).ti,ab | 16 656 |
| 71 | Massage.ti,ab | 9025 |
| 72 | (mind adj3 body).ti,ab | 4035 |
| 73 | Phototherapy/ | 7273 |
| 74 | Or/64– 73 | 302 897 |
| 75 | exp Advance care planning/ | 8277 |
| 76 | (Advance? adj3 (care or medical or healthcare) adj3 plan*).mp | 3552 |
| 77 | (decision* adj3 (aid* or support)).mp | 41 646 |
| 78 | Or/75– 77 | 46 897 |
| 79 | Case Management/ | 9516 |
| 80 | (communicati* adj3 skill* adj3 training).mp | 1283 |
| 81 | (dementia care adj3 map*).mp | 92 |
| 82 | ((person* or patient*) adj3 cent* adj3 care).mp | 23 552 |
| 83 | Or/79– 82 | 34 244 |
| 84 | (‘Resources for Enhancing Alzheimer’s Caregiver Health’ or ‘Strategies for Relatives’).ti,ab. | 88 |
| 85 | Caregivers/ed (Education) | 2484 |
| 86 | CAREGIVERS/px (Psychology) | 18 509 |
| 87 | Self-Help Groups/ | 8626 |
| 88 | exp Social support/ | 63 885 |
| 89 | Or/84– 88 | 87 559 |
| 90 | Diagnosis, Computer-Assisted/ | 21 241 |
| 91 | Telemedicine/ | 17 577 |
| 92 | (Telemedicine or tele medicine).mp | 21 573 |
| 93 | exp Computers, Handheld/ | 5107 |
| 94 | ((smart adj2 (phone* or device* or tablet*)) or smartphone*).mp | 8280 |
| 95 | cognitive aid*.mp. | 138 |
| 96 | Reminder*.ti,ab | 10 667 |
| 97 | Robot*.mp | 38 250 |
| 98 | Or/90– 97 | 102 392 |
| 99 | 22 or 28 or 45 or 51 or 55 or 63 or 74 or 78 or 83 or 89 or 98 | 13 800 589 |
| 100 | 21 and 99 | 208 431 |
| 101 | randomized controlled trial.pt | 462 693 |
| 102 | controlled clinical trial.pt | 92 457 |
| 103 | (randomized or randomised).ab | 495 756 |
| 104 | Placebo.ab | 189 758 |
| 105 | drug therapy.fs | 2 024 910 |
| 106 | Randomly.ab | 292 598 |
| 107 | Trial.ab | 431 012 |
| 108 | Groups.ab | 1 806 682 |
| 109 | Or/101– 108 | 4 294 404 |
| 110 | randomized controlled trial.pt | 462 693 |
| 111 | (Cluster* adj2 randomi*).tw | 9224 |
| 112 | ((communit* adj2 intervention*) OR (communit* adj2 randomi*)).tw | 6858 |
| 113 | Group* randomi*.tw | 2846 |
| 114 | Or/111–113 | 18 443 |
| 115 | intervention?.tw | 782 326 |
| 116 | cluster analysis/ | 56 328 |
| 117 | health promotion/ | 66 499 |
| 118 | program evaluation/ | 56 711 |
| 119 | health education/ | 57 721 |
| 120 | Or/115–119 | 965 052 |
| 121 | 114 or 120 | 968 364 |
| 122 | 110 or 121 | 1 366 397 |
| 123 | risk.mp. | 2 178 921 |
| 124 | exp cohort studies/ | 1 751 258 |
| 125 | between group.tw | 21 162 |
| 126 | Or/123–125 | 3 451 482 |
| 127 | (non random* or nonrandom*).mp | 33 945 |
| 128 | Non-Randomized Controlled Trials as Topic/ | 359 |
| 129 | quasi.mp | 41 169 |
| 130 | (natural adj3 experiment).mp | 1724 |
| 131 | instrumental variable*.mp | 1969 |
| 132 | Cohort.mp | 516 750 |
| 133 | before-after.mp | 4519 |
| 134 | (before adj2 after adj study).mp. | 1810 |
| 135 | Controlled Before-After Studies/ | 329 |
| 136 | (difference-in-difference* or diff-in-diff).mp | 1782 |
| 137 | regression discontinuity.mp | 223 |
| 138 | Historically Controlled Study/ | 139 |
| 139 | historical* control.mp | 3400 |
| 140 | Interrupted Time Series Analysis/ | 435 |
| 141 | Interrupted Time Series.mp | 2280 |
| 142 | Case-control.mp | 287 943 |
| 143 | Case-Control Studies/ | 249 334 |
| 144 | Match*.mp | 419 961 |
| 145 | Propensity.mp | 47 848 |
| 146 | Propensity Score/ | 5596 |
| 147 | Or/127–146 | 1 205 777 |
| 148 | 126 or 147 | 4 094 244 |
| 149 | Developing Countries.sh,kf. | 81 106 |
| 150 | (Africa or Asia or Caribbean or West Indies or South America or Latin America or Central America).hw,kf,ti,ab,cp. | 242 209 |
| 151 | (Afghan* or Albania* or Algeria* or Angola* or Anguilla* or Antigua* or Barbuda* or Argentin* or Armenia* or Azerbaijan* or Azeri or Bangladesh* or Barbad* or Benin* or Byelarus or Byelorussian or Belarus* or Belorussia* or Belize* or Bhutan* or Bolivia* or Bosnia* or Herzegovin* or Hercegovin* or Botswana or Botsuana or Motswana or Batswana or Brasil* or Brazil* or Burkina Faso or Burkina Fasso or Burkina* or Burundi* or Urundi* or Cambodia* or Cameroon* or Cameron* or Cape Verd* or Cabo Verde or Central African Republic or Chad* or Tchad* or Chile* or China or Chinese or Colombia* or Columbia* or Comoros or Comoro Islands or Comores or Comoran or Mayotte or Congo* or Costa Rica* or Cote d’Ivoire or Ivory Coast or Ivorian* or Cook Islands or Cuba* or Croat* or Djibouti* or Dominica* or East Timor or East Timur or Timor Leste or Timorese or Ecuador* or Equador* or Egypt* or El Salvador or Salvadoran or Eritrea* or Ethiopia* or Fiji* or Gabon* or Gambia* or Gaza or Georgia Republic or Georgian or Abkhazia* or Abchasia* or South Ossetia* or Ghana* or Grenada or Grenadian or Guatemala* or Guinea* or Guinea Bissau or Guian* or Guyana or Haiti* or Hondura* or India or Indian or Indonesia* or Iran* or Iraq* or Jamaica* or Jordan* or Kazakhstan* or Kazakh or Kenya* or Kiribati or Korea* or Kosovo or Kosova* or Kyrgyzstan or Kirghizia or Kyrgyz or Kirghiz or Kirgizstan or Lao PDR or Laos or Laotian or Lebanon or Lebanese or Lesotho or Mosotho or Basotho or Liberia* or Libya* or Macedonia* or FYROM or Madagasca* or Malagasy or Malaysia* or Malaya* or Malay or Sabah or Sarawak or Malawi* or Maldives or Maldivan or Mali or Malian or Marshall Islands or Marshallese or Mauritania* or Mauriti* or Agalega Islands or Mexico or Mexican or Micronesia* or Middle East* or Moldova* or Moldovia* or Transnistria* or Mongolia* or Montenegr* or Montserrat* or Morocc* or Mozambique or Mozambican or Myanmar* or Myanma or Burma or Burmese or Namibia* or Nauru* or Niue or Nepal* or Nicaragua* or Niger or Nigerien or Nigeria* or Oman* or Pakistan* or Palau* or Palestine or Palestinian or Panama or Panamanian or Paraguay* or Papua New Guinea* or Peru or Peruvian or Philippines or Philipines or Phillipines or Phillippines or Filipino or Philipino or Philippino or Phillipino or Phillippino or Rwanda* or Ruanda* or Saint Helen* or St Helen* or Saint Kitts or St Kitts or Kittian or Nevis* or Saint Lucia* or St Lucia* or Saint Vincent or St Vincent or Vicentian or Grenadines or Samoa* or Sao Tome* or Senegal* or Serbia* or Seychell* or Sierra Leone* or Sri Lanka* or Ceylon or Solomon Island* or Somali* or South Africa* or Sudan or Sudanese or Surinam* or Swaziland or Swazi or Eswatini or Syria or Syrian or Tajikistan or Tadzhikistan or Tadjikistan or Tajik or Tadzhik or Tanzania* or Thailand or Thai or Togo or Togolese or Tonga* or Tunisia* or Tokelau or Trinidad* or Tobago* or Turkey or Turkish or Turks or Turkmenistan or Turkmen or Tuvalu* or Uganda* or Ukraine or Ukrainian or Uruguay* or Uzbekistan* or Uzbek or Vanuatu or Venezuela* or Vietnam* or Viet Nam or Wallis Futuna or West Bank or Yemen* or Zambia* or Zimbabwe*).hw,kf,ti,ab,cp. | 2 805 600 |
| 152 | ((developing or less* developed or under developed or underdeveloped or middle income or low* income or underserved or under served or deprived or poor*) adj (countr* or nation? or population? or world)).ti,ab. | 85 468 |
| 153 | ((developing or less* developed or under developed or underdeveloped or middle income or low* income) adj (economy or economies)).ti,ab. | 440 |
| 154 | (low* adj (gdp or gnp or gross domestic or gross national)).ti,ab. | 217 |
| 155 | (low adj3 middle adj3 countr*).ti,ab. | 11 181 |
| 156 | (lmic or lmics or third world or lami countr*).ti,ab. | 5792 |
| 157 | transitional countr*.ti,ab. | 146 |
| 158 | Or/149– 157 | 2 945 907 |
| 159 | 100 and (109 or 122 or 148) and 158 | 8278 |
| 160 | limit 159 to (comment or editorial or letter) | 74 |
| 161 | 159 not 160 | 8204 |
| 162 | limit 161 to yr=‘2008 -Current’ | 6322 |
| 163 | exp animals/not humans.sh. | 4 496 553 |
| 164 | 162 not 163 | 5786 |