Skip to main content
. 2019 Sep 6;14(9):e0221799. doi: 10.1371/journal.pone.0221799

Table 2. Mean (sd) health related- quality of life (HR- QOL) by smoking status.

QOL measures Never smokers
(mean ± sd)
Current smokers
(mean ± sd)
Mean Diff. 95% Conf. interval P value#
Lower Upper
Rating of QOL 3.18 ± 0.61 3.14 ± 0.56 0.040 - 0.106 0.186 0.07
Satisfaction with health 3.20 ± 0.62 3.30 ± 0.66 -0.096 - 0.256 0.064 0.08
Physical domain 60.43 ± 10.89 60.02 ± 11.80 0.416 -2.413 3.245 0.772
Psychological domain 58.49 ± 9.25 57.98 ± 8.70 0.504 -1.734 2.742 0.658
Social domain 62.49 ± 14.22 61.90 ± 13.30 0.588 -2.849 4.025 0.736
Environmental domain 56.95 ± 11.80 56.50 ± 9.60 0.456 - 2.225 3.137 0.738

#Independent T test used.