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. 2015 Sep 2;5(9):e007694. doi: 10.1136/bmjopen-2015-007694

Table 4.

Age-adjusted SF-12 mean scores (95% CI) by sex and secondhand smoke (SHS) exposure in never smokers (complete case analysis)

Male (n=1161)
Female (n=2611)
Not exposed Exposed p Value* Not exposed Exposed p Value*
PF† 93.1 (91.1 to 95.1) 93.8 (92.7 to 95.0) 0.52 88.8 (87.2 to 90.4) 87.7 (86.7 to 88.6) 0.22
RP‡ 89.3 (86.8 to 91.7) 88.5 (87.1 to 89.8) 0.56 83.9 (82.1 to 85.8) 81.2 (80.0 to 82.4) 0.013
BP 89.4 (86.7 to 92.0) 84.8 (83.2 to 86.4) 0.005 80.4 (78.2 to 82.5) 77.3 (76.0 to 78.5) 0.020
GH 53.0 (49.3 to 56.7) 50.7 (48.7 to 52.7) 0.29 46.2 (43.9 to 48.5) 43.0 (41.7 to 44.4) 0.024
VT 68.7 (65.3 to 72.1) 68.5 (66.7 to 70.2) 0.91 67.5 (65.3 to 69.6) 63.7 (62.4 to 65.0) 0.004
SF 88.5 (85.8 to 91.2) 88.0 (86.5 to 89.4) 0.74 87.5 (85.8 to 89.2) 84.6 (83.5 to 85.7) 0.005
RE§ 87.0 (84.7 to 89.2) 84.0 (82.6 to 85.3) 0.026 82.8 (81.1 to 84.4) 80.0 (79.0 to 81.0) 0.006
MH¶ 77.2 (74.8 to 79.5) 75.2 (73.9 to 76.5) 0.15 76.1 (74.7 to 77.5) 73.6 (72.7 to 74.5) 0.004
PCS12 51.1 (50.2 to 52.0) 50.7 (50.3 to 51.2) 0.46 48.3 (47.7 to 49.0) 47.6 (47.2 to 48.0) 0.046
MCS12 52.0 (50.9 to 53.1) 51.1 (50.5 to 51.7) 0.16 51.7 (51.0 to 52.4) 50.3 (49.8 to 50.7) 0.001

Results were weighted by age and sex from census data.

*p Value comparing respondents with and without SHS exposure; significance was tested by linear regression.

†Four missing in female.

‡Two missing in male, Four missing in female.

§Four missing in female.

¶One missing in female.

BP, Bodily Pain; GH, General Health; MH, Mental Health; PF, Physical Functioning;, RE, Role Emotional; RP, Role Physical; SF, Social Functioning; VT, Vitality.