Table 2.

Descriptive statistics (mean ± SD) of WHOQOL-BREF and WHOQOL-OLD, by smoking categories, Uberaba, Brazil

QOL	Smoking Categories
	Smokers		Ex-smokers		Never smoker		p
	Mean	SD	Mean	SD	Mean	SD
WHOQOL-BREF
Physical	61.27	16.39	61.90	17.39	61.53	17.10	0.925
Psychological	64.82	14.30	67.52	15.54	65.73	15.99	0.156
Social relationship	70.49	15.34	72.44	14.01	71.17	14.22	0.318
Environmental	59.81	12.66	61.35	13.89	60.60	14.27	0.543
WHOQOL-OLD
Sensory abilities	67.41	23.69	69.86	24.04	68.70	23.45	0.593
Autonomy	62.80	15.07	65.56	15.76	64.33	15.73	0.233
Past, present and future activities	66.90	14.04	68.20	15.93	67.38	15.40	0.661
Social participation	62.70	14.83	65.64	16.86	65.05	16.27	0.232
Death and Dying	73.03	22.73	73.51	25.03	70.44	26.91	0.204
Intimacy	65.67	21.96	69.70	19.78	68.06	20.35	0.164