Table 1

 Selected characteristics of non-smoking adults by smoke-free law coverage category

CharacteristicsSample sizeSmoke-free law coverage category, % (95% CI)
No law† (4026)Limited (503)Extensive (1337)
*p<0.05.
†Referent category used to test the null hypothesis of no difference in proportions using the t test.
‡Does not meet the standard of statistical reliability and precision (relative SE >30%).
§Self-reported.
Workplace SHS exposure§
    Yes4369.3 (8.0 to 10.8)4.6 (2.4 to 8.5)*‡7.6 (6.0 to 9.6)
    No542890.7 (89.3 to 92.0)95.4 (91.5 to 97.6)92.4 (90.4 to 94.0)
Restaurant meals/week
    0 to 3467074.5 (72.0 to 76.8)72.8 (64.5 to 79.7)72.3 (65.3 to 78.4)
    4+119425.6 (23.2 to 28.0)27.2 (20.3 to 35.5)27.7 (21.6 to 34.7)
Sex
    Men250342.8 (41.5 to 44.2)48.5 (45.8 to 51.3)*43.8 (41.8 to 45.9)
    Women336357.2 (55.8 to 58.5)51.5 (48.7 to 54.3)56.2 (54.1 to 58.2)
Race/ethnicity
    Non-Hispanic white294073.2 (66.3 to 79.1)83.7 (71.4 to 91.3)65.8 (53.6 to 76.2)
    Non-Hispanic black90810.8 (8.2 to 14.3)4.3 (2.0 to 8.8)*‡3.1 (1.8 to 5.3)*
    Mexican American15345.2 (3.5 to 7.6)5. 0 (1.4 to 16.2)‡19.1 (12.5 to 28.0)*
Age group
    20–39 years194935.1 (32.1 to 38.2)37.0 (30.1 to 44.5)36.4 (30.5 to 42.8)
    40–59 years162936.9 (34.1 to 39.8)40.7 (37.2 to 44.3)37.9 (32.7 to 43.5)
    60+ years228828.0 (25.9 to 29.2)22.3 (18.5 to 26.6)25.6 (23.1 to 28.4)*
Education
    ⩽12 years306142.2 (38.1 to 46.3)26.3 (18.2 to 36.4)*38.1 (34.0 to 42.3)
    >12 years279557.9 (53.7 to 61.9)73.7 (63.6 to 81.8)61.9 (57.7 to 66.0)