Table 2.

Selection criteria used by reviewed studies (n = 10)

Author	No. of selection criteria	Selection criteria category	Selection criteria
Wong et al. 2018	4	Prevention, prevalence, clinical significance & review of studies	• Amenable to primary and secondary prevention • Higher occurrence among people with HIV • Contribute to causes of death among people with HIV • Inclusion in other multimorbidity studies among people with HIV
Guaraldi et al. 2018	1	Guidelines	• Based on European AIDS Clinical Society (EACS) guidelines (2018)
Arant et al. 2021	2	Prevalence & review of studies	• Higher occurrence among people with HIV • Inclusion in other multimorbidity studies (Scouten et al. 2014 & Kim et al. 2021)
Castilho et al. 2019	1	Clinical significance	• Clinical significance (in terms of morbidity and mortality)
Edmiston et al. 2015	2	Prevalence & guidelines	• Higher occurrence among people with HIV (Deeks et al. 2009 & EACS Guidelines 2013)
Kim et al. 2012	2	Clinical significance & review of studies	• Review of multimorbidity literature • Relevance and clinical significance to people with HIV (determined by three of the authors)
Mefford et al. 2022	2	Clinical significance & guidelines	• Recommendations by the US Department of Health and Human Services Strategic Framework on Multiple Chronic Conditions and previous work conducted by the Cardiovascular Research Network (CVRN). • Relevant to placing persons at increased risk for hospitalisation
Yang et al. 2021	1	Review of studies	• Review of existing comorbidity literature in both the general and HIV-infected populations (Althoff et al. 2015; Kim et al. 2012; van den Bussche et al. 2011)
Ahmed et al. 2022	1	Prevalence	• ’Top 30 co-occurring conditions” in the study population
De Francesco et al. 2018	1	Prevalence	• Conditions with a prevalence ≥1.5% in the study population