Table 4.

Results of the regression coefficients between systolic blood pressure and environmental risk factors in the sample with and without cryptic relatedness (CR): sample size 500, ratio of CR to the population 42%, population prevalence 40%, heritability for liability 22.1%, prevalence in the subpopulation without CR 50%, prevalence in CR 26%

	Estimated	Standard error	t-value	Pr(>|t|)
Intercept
Sample with CR1	137.18	4.91	27.92	<2e−16
Sample without CR2	141.55	2.99	47.26	<2e−16
BMI
Sample with CR	0.04	0.14	0.29	0.77
Sample without CR	0.09	0.08	1.11	0.27
Alcohol consumption
Sample with CR	−9.47	1.59	−5.94	5.47e−09
Sample without CR	−5.34	1.00	−5.35	4.26e−07
Smoking status
Sample with CR	3.47	0.64	5.45	8.10e−08
Sample without CR	−2.30	0.44	−5.18	4.26e−11
Age
Sample with CR	0.10	0.07	1.34	0.18
Sample without CR	0.11	0.05	2.39	0.018
Gender
Sample with CR	−0.95	1.10	−0.94	0.35
Sample without vCR	−1.10	0.60	−1.83	0.07

¹Size of sample with CR was 500 subjects. From the sampling data with CR, equation (7) in Results were found. Adjusted R-squared = 0.19.

²Size of sample without CR was 290 subjects. From the sampling data without CR, equation (8) in Results were found. Adjusted R-squared = 0.16.