. 2021 Mar 3;4:41. doi: 10.1038/s41746-021-00407-6

Table 1.

The hierarchy of public health-related themes studies by the included articles in this review.

Public health themes	Public health category	Public health sub-category
Behavioural risk factors	Smoking^a1^–^a53	E-cigarette/JUUL^a9^–^a36, LCC^a37^–^a41, Hookah^a17^, ^a42^–^a45, Water-pipe^a47^, ^a48, Heat-not-burn^a49^, ^a50, E-liquid^a51^–^a53
	Lifestyle^a54^–^a89	Diet^a62–a66^, ^a68, Physical Activity^a64^, ^a67^–^a71, Weight loss^a72^, ^a73, Local health^a74^–^a82, Fitness^a83^, ^a84, Sleep disorders^a85^–^a87, Sexual health^a88^, ^a89
	Substance use^a90^–^a123^, ^a123^–^a127	Alcohol^a91^–^a105, Cannabis/Marijuana^a102^, ^a106^–^a123, Dabbing^a124^, ^a125, Mephedrone^a126
	Harassment^a128^–^a133	Sexual^a128^–^a130, (Cyber)bulling^a131^, ^a132, IPV^a133
Cancer	Mortality^a134	Breast^a134, Lung^a134
	Prevention^a135^–^a141	Cervical^a135^, ^a136, Skin^a137^–^a140, Lung^a141
	Awareness^a142^–^a165	Breast^a145^–^a153^, ^a157, Acute lymphoblastic leukaemia^a154, Diet^a155^, ^a156, Smoking^a158, Prostat^a148^, ^a151^, ^a159, HNPCC^a160, Lung^a161^, ^a162, Cervical^a166, Skin^a163, Colorectal^a164, Genitourinary malignancies^a165, Ovarian^a150
	Behavioural measures^a166^–^a177	Throat^a170, Breast^a175, Skin^a175, Melanoma^a175, Prostat^a175, Screening^a166^, ^a176, Pancreatic^a177
Chronic disease	General^a178^–^a193	Diabetes^a180^–^a182^, ^a184^–^a189, Third molar^a190, Molar incisor hypomineralization (MIH)^a193
	Musculoskeletal^a194^–^a198	Scoliosis^a194, Restless leg^a195, Osteoarthritis^a197, Gout^a198
	Eating disorder^a199^–^a204	Obesity^a199^–^a201^, ^a203, Diabetes^a201^, ^a202
	Cardiovascular^a157^, ^a178^, ^a205^–^a211	Cardiac arrest^a205, Heart disease^a157, Oral anticoagulants^a206, Vasculitis^a207, Hypertension^a178^, ^a208, Heartburn^a209, Venous thrombosis^a210
	Skin diseases^a212^–^a215	Psoriasis^a213^, ^a214, Pruritus^a215
	Lung diseases^a216^–^a220	COPD^a216^, ^a217, Asthma^a218^–^a220
	Neurological^a142^, ^a221^–^a236	Epilepsy^a222^–^a227, Willis-Ekbom^a228, Glaucoma^a229^, ^a230, Multiple sclerosis^a231^, ^a232, Tinnitues^a233^, ^a234, ALS^a142^, ^a235, Fibromyalgia^a236
	Gastrointestinal^a237^–^a239	Oesophageal^a238, Crohn’s disease^a239
	Autoimmune^a240^–^a243	Systemic Lupus Erythematosus (SLE)^a240^–^a242, Rheumatoid arthritis^a243
Communicable diseases	Outbreaks^a62^, ^a244^–^a376	ILI/Influenza^a62^, ^a245^–^a318, Dengue fever^a301^, ^a319^–^a328, Ebola^a330^–^a346, Zika^a347^–^a366, Avian Influenza^a367^–^a369, Norovirus^a371^, ^a372, MERS^a373^, ^a374, Chikungunya^a375^, ^a376
	Sexually transmitted^a377^–^a394	AIDS^a377^–^a379, HIV^a380^–^a389, HPV^a390, Syphilis^a392^–^a394
	Infectious diseases^a271^, ^a395^–^a433	Clostridium difficile^a401, Meningitis^a403, Measles^a404^–^a407, TBE^a408, Polio^a410^, ^a411, Guillain-Barré^a413, Tuberculosis^a415, HFMD^a416, RSV^a417, Scarlet fever^a418, Plague^a419^–^a421, Cholera^a434, West-nile virus^a422, Pertussis^a271^, ^a423^–^a426, Candida auris^a427, Lyme^a428^–^a430, Mayaro virus^a431, Malaria^a432, Hepatitis^a433
Paediatric health	Awareness^a322^, ^a435^–^a437	DSFCs^a322, Paediatric Fever^a435, SIDS^a436, Obesity^a437
	Birth defects^a438^–^a440	Pharmacoepidemiologic^a438, Intrauterine growth restriction (IUGR)^a440
	General^a441^, ^a442	Accident^a441, Chicken pox^a442
Drug utilization	Awareness^a443^–^a452	Anabolic-androgenic steroid (AAS)^a448, Alternative medicine^a449, Stem-cell therapy^a450, Codeine^a451, Antiretroviral^a452
	Drug safety/side effects^a453^–^a464	Statins^a456, Illicit Pharmacies^a457^–^a459, Bisphosphonate^a460, Psyclone^a461, Zolpidem^a462, Antimicrobial stewardship^a463
	Adverse reaction^a277^, ^a465^–^a484	Atorvastatin^a473, Psychiatric drugs^a475, Glucocorticoid-related^a480, HIV^a481
	Drug abuse^a485^–^a503	Opioid^a485^–^a495, Fentanyl^a496, Heparinoid^a497, Recreational^a498^, ^a499, Adderall^a500, Antidepressants^a501, Sea salt^a502
	Post-marketing^a504^–^a506	Sitagliptin^a504, Antidepressant^a505, Opioid^a506, Loperamide^a503
Food and nutrition	Food safety^a507^–^a517	(Un)healthy^a509^–^a511^, ^a517^, ^a518, Legislation^a512, Food poisoning^a513^, ^a514, Food-borne illnesses^a515^, ^a516
	General^a519^–^a523	Marketing^a520^, ^a521^, ^a523, Online recipes^a522
Health practices	Outcomes^a524^–^a527	Rejuvenation^a524, Breast reconstruction^a525, Tanning^a526^, ^a527
	General^a231^, ^a528^–^a537	Dietary supplements^a530^, ^a531, Sunburn^a533, Physical therapy^a534, Organ donation^a535, Bariatric surgery^a536, Plastic surgery^a537
Health services	Quality assessment^a333^, ^a538^–^a549	Nursing care^a333^, ^a539^, ^a540, Hospitals^a541^–^a543, Emergency departments^a544^, ^a545, Dermatologic care^a546, Surgery^a547^, ^a548, Radiology^a549
	Accessibility^a550^–^a553	Emergency departments^a550^, ^a551, Physical therapy^a553
	Health communication^a93^, ^a554^–^a584	Awareness^a93^, ^a555^–^a567^, ^a571, Patient support^a568^–^a578, Health reforms^a579^–^a581, Crisis^a582, Heat alert^a583, outbreak alert^a584
Environmental	Pollen counts^a585^–^a596	Seasonal Allergic Rhinitis^a585^–^a590, Epistaxis^a591, Air pollution^a592^–^a595, Sinusitis^a596
	Syndromic^a597^–^a601	Heat wave^a597^–^a601
	Water quality^a602^–^a605	Fluoridation^a602^–^a604, Lead^a605
	Disaster/Crisis^a606^–^a608 Winter	Storm^a606, Tornado^a607, Earthquake^a608
Mental health	General^a62^, ^a609^–^a644	Suicide^a612^–^a626, Post-Traumatic Stress^a628, Depression^a62^, ^a629^–^a637, Stress^a638^, ^a639, Bipolar^a640^, ^a641, Loneliness^a642^, ^a643, OCD^a644
	Emotion analysis^a645^–^a650	Disaster/crisis^a646^–^a648, Outbreaks^a649^, ^a650, Suicide^a651
	Stigma^a644^, ^a652^–^a656	Suicide^a652^, ^a655, Anxiety^a653, Self-harm^a656
	Neurodevelopmental^a637^, ^a657^–^a668	ADHD^a657, ASD^a658, Schizophrenia^a637^, ^a659^–^a663, Dementia^a664^–^a667, Psychotic^a668
	Eating disorder^a669^, ^a670	Anorexia nervosa^a669
Mortality	General^a61^, ^a671^–^a675	Awareness^a671, Socio-demographics^a672, Perinatal^a673, Stroke^a674, Accident^a675
	Behavioural factors^a489^, ^a676^, ^a677	Substance use^a489^, ^a676, Suicide^a676, Social activity^a677
Vaccine	Decision making^a678^–^a708	Paediatric^a688^–^a691, HPV^a692^–^a704, Influenza^a705, Herper Zoster^a706, Polio^a707, Measles^a702
	Adverse event^a709^, ^a710	Influenza^a709, Anxiety-related^a710
	Coverage^a329^, ^a711^, ^a712	Influenza^a329, HPV^a711^, ^a712
	Awareness^a713^–^a722	HPV^a713^–^a718, Flu^a719, Rotavirus^a720, Measles^a721, Autism^a722
Urogenital/Preconception	Genital^a62^, ^a723^–^a729	Abortion^a723, C-section^a725, Pregnancy^a62^, ^a726^–^a728, Morcellation^a729
	Renal^a730^–^a732	Kidney stone^a730^, ^a731, Dialysis^a732
	Urinary^a733	Urinary Tract Infection (UTI)^a733
Others	Toothache^a734^–^a737	Teathing^a737
	Sexual dysfunction^a738^, ^a739	Peyronie^a738, Ejaculatory dysfunction^a739
	Animal health^a740^, ^a741	Slaughterhouse^a740, Marine litter^a741
	Disease burden^a742^, ^a743	Skin diseases^a743
	Occupational safety^a744^–^a747	Chemical Poisoning^a744, Accidents^a745, Silicosis^a746, Injuries^a747

An article could be linked to only the ‘category’ column if it did not address any sub-categories listed in the sub-category column.

TBE tick-borne encephalitis, DSFC delayed subaponeurotic fluid collections, ADHD attention deficit hyperactivity disorder, HNPCC hereditary non-polyposis colorectal cancer, HFMD hand, foot and mouth disease, RSV respiratory syncytial virus, OCD obsessive compulsive disorder, IPV intimate partner violence, ALS amyotrophic lateral sclerosis, SIDS sudden infant death syndrome.