Table 1.

Characteristics of study population

AllMalesFemales
N = 167*n = 61n = 104
Mean age (y)42.141.642.3
Range of ages (y)6-806-6812-80
Self-reported smoking statusSmoker77 (46.1%)25 (41.0%)51 (49.0%)
Nonsmoker90 (53.9%)36 (59.0%)53 (51.0%)
  • * Sex of two subjects was not noted.