Table 4.

Ability of the Laval Questionnaire to distinguish treated vs. untreated patients*

	A: Rating of change (time 3 - time 1) in the treated group	B: Rating of change (time 3 - time 1) in the untreated group	Treatment effect (A - B)	P value† (A - B)
• Symptoms	2.1 (1.8 to 2.5)	0.3 (0.0 to 0.6)	1.8 (1.3 to 2.3)	<0.0001
• Activity/Mobility	3.2 (2.7 to 3.6)	0.2 (-0.2 to 0.6)	3.0 (2.3 to 3.6)	<0.0001
• Personal hygiene/Clothing	3.4 (2.9 to 3.8)	0.2 (-0.2 to 0.6)	3.2 (2.5 to 3.9)	<0.0001
• Emotions	2.3 (1.9 to 2.8)	0.7 (0.3 to 1.1)	1.7 (1.0 to 2.3)	<0.0001
• Social interactions	2.8 (2.3 to 3.2)	1.3 (0.0 to 2.7)	1.4 (0.3 to 2.6)	0.0132
• Sexual life	2.5 (2.0 to 3.0)	0.7 (0.2 to 1.3)	1.8 (1.0 to 2.6)	<0.0001

* Results are presented as means (95% confidence intervals).

† p value attached to the group differences during the study period (unpaired t-test)