Table 1.

Study participant characteristics and comparison with the NHANES

Variables	Study participant	NHANES adult	Standardized incidence ratio (55)	95% CI	P value
Characteristics
Age, y					4.43E-40*
Median	55	26
Range	20–98	0–80
Sex					4.84E-04*
Male	65.6%	49.2%
Female	34.4%	50.8%
Measured BMI
Median (25–75%)	26 (23–29)	24.7 (20–30)
Measured systolic blood pressure
Median (25–75%)	123.5 (115–133)	116 (106–128)
Measured LDL
Median (25–75%)	114.5 (96–135)	103 (81–127)
Diseases
Neoplasms
Ever told you had cancer or malignancy	15.1%	9.5%	1.5	1.02–2.16	3.39E-02*
Cardiovascular
Ever told you had coronary heart disease	4.1%	4.0%	0.9	0.38–1.74	7.98E-01
Chronic respiratory diseases
Ever told you had COPD	1.0%	3.3%	0.2	0.02–0.88	9.52E-02
Diabetes, urogenital, blood, and endocrine diseases
Doctor told you have diabetes	4.6%	7.5%	0.3	0.13–0.54	9.63E-04*
Cirrhosis and other chronic liver diseases
Ever told you had any liver condition	6.1%	4.1%	1.1	0.55–1.89	7.75E-01
Neurological disorders
Blood relatives have Alzheimer’s disease	13.2%	13.3%	1.0	0.63–1.44	1.00E+00
Risk factors
Alcohol use
Had at least 12 alcoholic drinks per 1 y	90.0%	70.0%	1.2	0.99–1.37	2.76E-02*
Tobacco smoking
Smoked at least 100 cigarettes in life	38.4%	42.2%	0.8	0.58–0.97	8.90E-02
High LDL cholesterol
Now taking prescribed medicine	78.9%	85.4%	1.1	0.74–1.48	6.02E-01
High blood pressure
Ever told you had high blood pressure	23.0%	33.7%	0.5	0.38–0.69	6.81E-06*
Taking prescription for hypertension	73.8%	83.6%	0.8	0.54–1.14	2.44E-01

The NHANES information is at https://www.cdc.gov/nchs/nhanes/. BMI, body mass index; COPD, chronic obstructive pulmonary disease.

^*P ≤ 0.05.