Table 2.

SF-36 quality of life scores of five populations: unadjusted weighted means and estimated weighted means after adjustment for BMI, age and gender

	PF	PR	PA	GH	VI	SF	ER	MH
Unadjusted weighted means
General	87	80	74	69	61	83	80	74
General obese	79†	74*	68*	62*	52‡	76†	67‡	68†
Non-treatment	79	77	67	71	58	80	73	69
Conservative treatment	76‡	74‡	69†	65†	54‡	76‡	69‡	69‡
Surgical treatment	47‡	45‡	54‡	50‡	38‡	63‡	64‡	66‡
BMI §
General	79	75	67	62	56	79	77	72
General obese	78	74	67	62	51	76	67†	67*
Non-treatment	76	76	65	69	56	78	72	68
Conservative treatment	77	75	70	66*	55	77	70†	69*
Surgical treatment	62‡	54‡	67	62	47†	70‡	68*	70
Age ∥
General	86	80	74	70	61	83	81	75
General obese	80†	76	69	63†	52‡	76†	66‡	67‡
Non-treatment	77	76	66	71	58	80	75	69
Conservative treatment	77‡	75†	70*	66†	54‡	76‡	68‡	68‡
Surgical treatment	47‡	45‡	54‡	50‡	38‡	63‡	64‡	66‡
Gender ¶
General	87	80	73	70	60	82	79	74
General obese	79†	74*	67*	62†	51‡	76†	66‡	67‡
Non-treatment	79	78	68	71	58	81	74	69
Conservative treatment	76‡	74‡	70*	66†	55‡	77‡	70‡	69‡
Surgical treatment	48‡	46‡	55‡	50‡	39‡	64‡	66‡	67‡

PF: Physical functioning, PR: Physical role — Role limitations due to physical problems, PA: Bodily pain, GH: General health, VI: Vitality, SF: Social functioning, ER: Emotional role — Role limitations due to emotional problems, MH: Mental health (the higher scores reflect a better quality of life).

* P<.05, †P<.01, ‡P<.001, these P-values refer to the significance of the difference between the quality of life score of the specific population as compared to the quality of life of all other populations.

§ Estimated weighted means after adjustment for BMI.

∥ Estimated weighted means after adjustment for age.

¶ Estimated weighted means after adjustment for gender.