Chronic back pain and its association with quality of life in a large French population survey

Table 4 Quality of life by chronic pain status

	No chronic back pain	Chronic back pain	p-value
Mean scores for SF-36 subscales and composite scales
Physical functioning	91.48	81.34	<.0001
Role limitation caused by physical health	89.85	75.25	<.0001
Body pain	79.99	55.44	<.0001
General health	76.53	66.76	<.0001
Vitality (energy/fatigue)	64.21	56.81	<.0001
Social functioning	89.57	81.49	<.0001
Role limitation caused by emotional problems	94.67	91.41	<.0001
Emotional well-being	73.24	67.49	<.0001
Physical component score (PCS)	49.43	44.64	<.0001
Mental component score (MCS)	55.97	53.74	<.0001

Note. Mean scores for SF-36 subscales and composite scales. Scores represent the level of functioning and range from 0 (poor) to 100 (excellent). The p value indicates the level of significance in the t test used to compare the two groups

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