Table 3.

Results of the regression coefficients between systolic blood pressure and environmental risk factors in the sample with and without cryptic relatedness (CR): sample size 400, ratio of CR to the population 52.5%, population prevalence 50%, heritability for liability 14.3%, prevalence in the subpopulation without CR 76.3%, prevalence in CR 26%

	Estimated	Standard error	t-value	Pr(>|t|)
Intercept
Sample with CR1	135.37	5.77	23.47	<2e−16
Sample without CR2	136.68	2.09	65.34	<2e−16
BMI
Sample with CR	0.07	0.16	0.46	0.64
Sample without CR	0.06	0.05	1.11	0.27
Alcohol consumption
Sample with CR	−12.34	2.00	−6.16	1.77e−09
Sample without CR	−7.75	0.81	−9.54	<2e−16
Smoking status
Sample with CR	4.15	0.74	5.62	3.60e−08
Sample without CR	−2.32	0.32	−7.23	1.24e−11
Age
Sample with CR	0.17	0.09	1.89	0.06
Sample without CR	0.27	0.03	7.84	3.56e−13
Gender
Sample with CR	−1.13	1.18	−0.95	0.34
Sample without CR	0.11	0.41	0.27	0.79

¹Size of sample with CR was 400 subjects. From the sampling data with CR, equation (5) in Results were found. Adjusted R-squared = 0.24.

²Size of sample without CR was 190 subjects. From the sampling data without CR, equation (6) in Results were found. Adjusted R-squared = 0.42.