Table 3: Comparison of those who were included the final analytic sample to those who were excluded due to missing dataa.

CharacteristicsFinal analytic sample (N = 2,104)Missing data (N = 3,127)P value

Age (years)45.3 ± 0.545.4 ± 0.4<0.0001
Female (%)1,062 (51.0)1,625 (52.1)0.54
Race/ethnicity (%)0.29
 Non-Hispanic Whites1,038 (71.6)1,486 (70.0)
 Non-Whites1,066 (28.4)1,641 (30.0)
Smoking status (%)0.64
 Never smoker998 (48.4)1,497 (49.9)
 Former smoker510 (25.0)713 (23.0)
 Current smoker423 (23.0)645 (23.3)
 Missing173 (3.5)271 (3.7)
Alcohol intake (%)0.10
 Nondrinker875 (33.4)1,448 (36.4)
 Moderate drinker748 (41.9)1,022 (39.0)
 Heavy drinker481 (24.6)657 (24.6)
Annual household income0.02
 <$20,000422 (13.0)733 (15.9)
 $20,000–$54,999817 (35.6)1,215 (35.7)
 ≥55,000731 (46.0)942 (42.0)
 Missing134 (5.2)237 (6.3)
Moderate physical activity (%)749 (40.8)1,075 (38.3)0.18

aData presented are number (percentages) or mean values ± standard error (SE), as appropriate for the variable.