TABLE 1.

Descriptive statistics for subjects in monozygotic and dizygotic twin pairs

		N	Age (years)	BMI (Kg/m2)	SBP (mm Hg)	DBP (mm Hg)	PP (mm Hg)	MAP (mm Hg)
MZ	Male	230	52.95 ± 9.05	24.16 ± 3.11	135.84 ± 19.03	86.13 ± 11.24	49.71 ± 14.90	102.70 ± 12.47
	Female	256	50.81 ± 6.47	24.21 ± 3.52	124.42 ± 19.25	79.21 ± 9.84	45.21 ± 13.27	94.28 ± 12.20
	Total	486	51.82 ± 7.86	24.19 ± 3.33	129.80 ± 19.96	82.47 ± 11.07	47.33 ± 14.23	98.25 ± 13.02
DZ	Male	140	50.84 ± 7.32	24.65 ± 3.02	135.25 ± 19.38	86.15 ± 10.65	49.10 ± 14.81	102.52 ± 12.34
	Female	134	51.15 ± 7.05	24.50 ± 3.23	129.57 ± 20.74	81.99 ± 9.88	47.59 ± 15.97	97.85 ± 12.32
	Total	274	50.99 ± 7.18	24.58 ± 3.12	132.45 ± 20.23	84.10 ± 10.47	48.36 ± 15.38	100.22 ± 12.53
Total	Male	370	52.15 ± 8.49	24.35 ± 3.08	135.61 ± 19.14	86.14 ± 11.01	49.48 ± 14.85	102.63 ± 12.40
	Female	390	50.93 ± 6.67	24.31 ± 3.42	126.21 ± 19.91	80.17 ± 9.93	46.03 ± 14.29	95.52 ± 12.34
	Total	760	51.52 ± 7.62	24.33 ± 3.26	130.76 ± 20.09	83.06 ± 10.88	47.70 ± 14.66	98.96 ± 12.87

All data are expressed in mean ± standard deviation.

Abbreviations: BMI, body mass index; DBP, diastolic blood pressure; DZ, dizygotic; MAP, mean arterial pressure; MZ, monozygotic; PP, pulse pressure; SBP, systolic blood pressure.