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. 2017 Oct 12;20(11):1327–1335. doi: 10.1093/ntr/ntx202

Table 1.

Proportion of Indoor Workers Aged ≥18 Covered by Smokefree Workplace Policies, Overall and by Occupation Class, Sex, and Metropolitan Status—TUS-CPS, 2003 and 2010–2011a

Occupation class by gender and metropolitan status Sample size Proportion of indoor workers covered by smokefree workplace policies (% and 95% CIs) Relative differenceb (%)
2003 2010–2011 2003 2010–2011
All U.S. Workers 74,728 70,749 77.7 (77.2, 78.1) 82.8 (82.4, 83.2) 6.6
 Males 28,424 28,850 73.8 (73.1, 74.5) 80.3 (79.7, 80.8) 8.7
 Females 46,304 41,899 80.6 (80.1, 81.0) 84.9 (84.4, 85.3) 5.3
 Metropolitan 57,767 56,454 78.5 (78.0, 78.9) 82.7 (82.3, 83.1) 5.4
 Nonmetropolitan 16,698 13,742 73.2 (71.6, 74.7) 83.3 (82.0, 84.5) 13.8
 Not identified 263 553 82.4 (71.6, 89.6) 80.3 (74.8, 84.8) −2.5
White collar workers 55,429 52,626 82.0 (81.5, 82.4) 84.9 (84.5, 85.3) 3.5
 Males 19,008 19,413 79.8 (79.0, 80.5) 82.8 (82.2, 83.5) 3.9
 Females 36,421 33,213 83.4 (82.9, 83.9) 86.3 (85.8, 86.8) 3.4
 Metropolitan 43,986 43,037 82.3 (81.8, 82.8) 84.6 (84.2, 85.1) 2.8
 Nonmetropolitan 11,259 9,210 79.9 (78.5, 81.3) 86.7 (85.5, 87.7) 8.5
 Not identified 184 379 83.4 (72.4, 90.6) 84.9 (80.7, 88.2) 1.8
Blue collar workers 8,242 6,944 62.6 (61.1, 64.0) 74.3 (72.9, 75.7) 18.8
 Males 5,792 5,228 60.1 (58.4, 61.9) 73.2 (71.7, 74.7) 21.7
 Females 2,450 1,716 69.3 (66.8, 71.8) 78.4 (76.0, 80.7) 13.1
 Metropolitan 5,627 4,853 64.4 (62.7, 66.1) 74.6 (73.1, 76.1) 15.8
 Nonmetropolitan 2,583 2,019 57.1 (54.0, 60.1) 73.6 (70.5, 76.5) 28.9
 Not identified 32 72 92.6 (79.1, 97.6) 64.7 (51.2, 76.3) −30.1
Service workers 11,057 11,179 68.1 (67.1, 69.2) 78.9 (77.8, 79.9) 15.7
 Males 3,624 4,209 64.3 (62.6, 65.9) 77.4 (75.8, 78.9) 20.3
 Females 7,433 6,970 70.5 (69.2, 71.8) 80.0 (78.7, 81.3) 13.4
 Metropolitan 8,154 8,564 68.5 (67.1, 69.8) 78.5 (77.4, 79.6) 14.6
 Nonmetropolitan 2,856 2,513 66.5 (64.0, 69.0) 80.7 (78.2, 83.0) 21.4
 Not identified 47 102 71.4 (47.5, 87.3) 76.7 (60.4, 87.6) 7.4

aThe analysis only included respondents to TUS-CPS aged ≥18 years who reported that they worked indoors and mainly worked in an office building or in another nonresidential indoor place at the time of the interview. Those respondents who reported the presence of a smokefree workplace policy at their place of employment that did not permit smoking in work areas and that also did not permit smoking in indoor public or common areas (such as lobbies, rest rooms, and lunch rooms) were considered to be covered by a smokefree workplace policy. .White collar workers included management, business, and financial occupations (0010–0950); professional and related occupations (1000–3540); sales and related occupations (4700–4960); and office and administrative support occupations (5000–5930). Blue collar workers included installation, maintenance, and repair occupations (7000–7620); and production occupations (7700–8960). Service workers included healthcare support occupations (3600–3650); protective service occupations (3700–3950); food preparation and serving related occupations (4000–4160); building and grounds cleaning and maintenance occupations (4200–4250); and personal care and service occupations (4300–4650).

bRelative difference = 100 × (2010–2011 estimate – 2003 estimate)/2003 estimate. The significant relative differences based on two-proportion z-tests are bolded. A Bonferroni-adjusted p value of .0021 was used as the threshold for the multisubgroup comparisons.