California Smoke-Free Workplace Law compliance among bar/restaurants by survey year
| Cochran-Armitage trend test | |||||||
|---|---|---|---|---|---|---|---|
| Indicators | 1998 %* (number†) | 1999 % (number) | 2000 % (number) | 2001 % (number) | 2002 % (number) | Z Statistic | p Value |
| *Sample weights were used to adjust the proportions. | |||||||
| †Weighted sample size. Numbers rounded to the nearest integer. | |||||||
| No smoking patrons | 92.2 (390/423) | 94.4 (384/407) | 95.4 (361/378) | 98.8 (392/397) | 98.5 (246/250) | 5.04 | 0.0001 |
| No smoking employees | 96.5 (380/394) | 99.0 (401/405) | 98.8 (369/373) | 99.1 (392/396) | 99.2 (247/249) | 2.83 | 0.0047 |
| Ashtrays | 8.9 (36/406) | 7.9 (32/407) | 7.4 (28/377) | 6.2 (24/396) | 2.2 (6/250) | −3.16 | 0.0016 |
| Outdoor smoking area | 39.4 (153/388) | 39.6 (161/407) | 44.6 (168/377) | 46.4 (183/395) | 43.6 (109/250) | 1.99 | 0.0466 |