Table 1 Baseline characteristics among 789 sequenced Health ABC.

From: Mitochondrial DNA m.3243A > G heteroplasmy affects multiple aging phenotypes and risk of mortality

Variable

n (%)

Sex

   Male

371 (47)

   Female

418 (53)

Race

   White

396 (50)

   Black

393 (50)

Clinic Site

   Memphis

391 (50)

   Pittsburgh

398 (50)

Variable

Mean (SD)

   Baseline age, years

74.1 (2.9)

   Modified Mini-Mental State Examination

91.1 (5.4)

   Digit Symbol Substitution Test

33.8 (14.2)

   400 m walk speed (m/s)

1.24 (0.21)

   Grip Strength (kg)

29.3 (10.5)

   Systolic blood pressure (mm Mercury)

136.5 (21.4)

   Pulse wave velociy (cm/sec)

930.5 (421.9)

   Resting heart rate (beats/min)

67.7 (10.7)

   Fasting glucose (uIU/mL)

104 (30.8)

   Fasting insulin (uIU/mL)

8.6 (8.36)

Mortality events (mean follow-up, 12.7 years)

n (%)

   Total

481 (61%)

   Cancer

121 (15%)

   Cardiovascular

94 (12%)

   Dementia

82 (10%)

   Stroke

36 (5%)

  1. Number of mortality events for a mean of 12.7 years of follow-up.