Table 1

Demographics of study populations at first entry (n=54)

CharacteristicsN (%) or mean±SD
Male54 (100)
Age (years)41.6 (12.4)
Range21.7–71.2
Body mass index (kg/m2)28±4
Race
Caucasian50 (92.6)
African–American2 (3.7)
Hispanic2 (3.7)
Asian0 (0)
Current smoker22 (40.7)
Acceleration capacity (ms)−6.29 (3.62)
Deceleration capacity (ms)7.62 (3.23)