Table 1.

Summary of study characteristics.

Study	Country	Predictors of Interest	Sample Size	Sampling Techniques	Study Design	Years of Follow-Up	Cohort Name	Participant’s Age
Anker et al. (2021)	Switzerland	Systolic and diastolic blood pressure	4,200	Random sampling	Longitudinal	12 years	Lausanne cohort Lc65+	65–70 years
Barzilay et al. (2007)	United States	Metabolic syndrome	2,826	Age- and sex-stratified random sampling	Prospective cohort Study	9 years	Cardiovascular Health Study	≥65 years
Blaum et al. (2009)	United States	Hyperglycemia	543	Age-stratified random sampling	Cross-sectional	―	Women’s Health and Aging Studies I and II	≥60 years
Crow et al. (2019)	United States	Abdominal obesity	4,984	Multistage, probability sampling design	Cross-sectional	―	National Health and Nutrition Survey (NHANES)	≥60 years
Gale et al. (2014)	England	Framingham cardiovascular risk	1,726	Stratified sampling	Longitudinal study	4 years	English Longitudinal study of Aging (ELSA)	≥60 years
Graciani et al. (2016)	Spain	Ideal cardiovascular risk	2,617	Stratified cluster	Prospective cohort study	3.5 years	Not available	≥60 years
Kalyani et al. (2012)	United States	Hyperglycemia	346	Age-stratified random sampling	Longitudinal design	8.6 ± 3.6 years	Women’s Health and Aging Study II	≥70 years
Lee et al. (2020)	Taiwan	Metabolic syndrome	1,006	Multiple proportional to size	Cross-sectional study	―	The Social Environment and Biomarkers of Aging Study (SEBAS)	≥65 years
Liao et al. (2018)	China	Abdominal obesity	6,320	Multistage sampling	Cross-sectional	―	Beijing Longitudinal Study on Aging	≥65 years
Pérez-Tasigchana et al. (2017)	Spain	Metabolic syndrome	1,499	Not available	Longitudinal prospective cohort study	3.5 years	Senior ENRICA	≥60 years and older
Song et al. (2020)	China	Abdominal obesity	995	Random multistage clustering sample	Cross-sectional	―	Not available	≥65 years
Zaslavsky et al. (2016)	United States	Hyperglycemia	1,848	Random sampling	Prospective cohort study	4.8 years	Adult Changes in Thought (ACT)	≥65 years