Table 4a.

Partial regression coefficients (β) and standard errors (SE) for the pulse pressure predictor variables in the RIM analyses among men with incident hypertension during follow-up: Aerobics Center Longitudinal Study, 1970–2006.

Variable	Model I			Model II			Model III			Model IV
	β	SE	P	β	SE	P	β	SE	P	β	SE	P
Fixed Effects
Intercept	39.02	0.128	<0.0001	39.69	0.22	<0.0001	38.92	0.13	<0.0001	33.96	0.54	<0.0001
Age	0.12	0.005	<0.0001	0.13	0.006	<0.0001	0.13	0.006	<0.0001	0.16	0.007	<0.0001
Age2	0.014	0.0004	<0.0001	0.013	0.0004	<0.0001	0.014	0.0004	<0.0001	0.015	0.0004	<0.0001
Baseline exam date	−0.0001	0.00002	<0.0001	−0.00008	0.00002	<0.0001	−0.00009	0.00002	<0.0001	0.00004	0.00002	0.0185
Body fat %				−0.04	0.009	<0.0001	−0.01	0.01	<0.0001	−0.02	0.02	0.0949
Fitness							0.17	0.02	<0.0001	0.33	0.03	<0.0001
Waist circumference										0.05	0.009	<0.0001
Resting heart rate										0.02	0.006	0.0026
Fasting plasma glucose										0.04	0.004	<0.0001
Triglycerides										0.001	0.0007	0.1565
Total cholesterol										−0.002	0.002	0.2814
Current smoker										−0.58	0.17	0.001
Heavy drinker										0.59	0.20	0.0036
Parental history of hypertension										0.83	0.15	<0.0001
Random Effects
SD intercept (95% CI)	4.93 (4.79, 5.07)			4.94 (4.81, 5.07)			4.91 (4.78, 5.05)			4.89 (4.74, 5.04)
SD error (95% CI)	8,52 (8.46, 8.59)			8.46 (8.39, 8.52)			8.46 (8.39, 8.53)			8.39 (8.31, 8.46)

SD intercept: SD of the individual variance of the random part of the model; SD error: standard error of linear mixed model; CI = confidence interval.

Body fat%, waist circumference, and resting heart rate were normalized by fitness.