BMI	Body mass index
CHD	Coronary heart disease
CKD	Chronic kidney disease
CVD	Cardiovascular disease
DNAmCystatinC	DNA methylation-predicted cystatin C
eGFR	Estimated glomerular filtration rate
eGFRcr-cys	Estimated glomerular filtration rate calculated using both creatinine and cystatin C
ETS	Exposed to secondhand smoke
HR	Hazard ratios
Ln	Natural logarithm
LOD	Limit of detection
NCHS	National Center for Health Statistics
NHANES	National Health and Nutrition Examination Survey
OR	Odds ratios