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Table 1 Characteristics of Study Sample: Means ± SD or Percentage (%)

From: Identification of a pleiotropic locus on chromosome 7q for a composite left ventricular wall thickness factor and body mass index: the HyperGEN Study

 

African American

(n = 1344)

White

(n = 1119)

P*

Age, years

44.9 ± 13.5

49.2 ± 13.9

< 0.0001

Females, %

65.5

50.6

< 0.0001

Weight, kg

89.9 ± 22.4

84.5 ± 18.3

< 0.0001

Height, cm

167.6 ± 9.0

170.0 ± 9.3

0.039

Body mass index, kg/m2

32.0 ± 7.5

29.2 ± 5.9

< 0.0001

Systolic blood pressure, mm Hg

128.9 ± 22.0

122.9 ± 18.7

< 0.0001

Diastolic blood pressure, mm Hg

74.0 ± 11.6

70.8 ± 9.9

< 0.0001

# Hypertensive medication

0.95 ± 0.99

0.75 ± 0.89

< 0.0001

Ejection fraction, %

61.4 ± 7.9

61.9 ± 7.4

0.0147

Interventricular septal thickness, cm

0.92 ± 0.14

0.88 ± 0.13

< 0.0001

Posterior wall thickness, cm

0.86 ± 0.13

0.81 ± 0.13

< 0.0001

Relative wall thickness

0.33 ± 0.06

0.32 ± 0.05

< 0.0001

Left ventricular mass index, g/m2.7

41.7 ± 12.1

37.4 ± 10.7

< 0.0001

LV transmitral atrial phase peak filling velocity, cm/sec

72.4 ± 20.2

65.8 ± 18.4

< 0.0001

LV transmitral early peak filling velocity, cm/sec

81.5 ± 18.5

72.8 ± 17.6

< 0.0001

Stress-corrected midwall shortening, %

106.6 ± 12.9

109.6 ± 13.1

< 0.0001

Hypertension, %

71.6

55.9

< 0.0001

Diabetes, %

16.4

9.8

< 0.0001

Current smoking, %

27.4

10.1

< 0.0001

  1. *for age and sex, test was adjusted for familial clustering; for other variables, test was adjusted for age, sex and familial clustering.