Table 3.

Multivariate models in people with MS (R²=0.396; F_5,3973=520.4; P<.001) and healthy controls (R²=0.323; F_4,2521=300.1; P<.001) for QAV over the time frame of the Cognitive Reaction test, with additional covariates age and gender. EDSS scores are given for people with MS only.

Variable	QAVa of people with MSb			QAV of healthy controls
	β coefficient (95% CI)	P value	β coefficient (95% CI)		P value
Second section compared to first	.045 (0.037 to 0.053)	<.001	.070 (0.056 to 0.085)		<.001
Third section compared to first	.071 (0.063 to 0.080)	<.001	.110 (0.094 to 0.123)		<.001
Age	–.005 (–0.005 to –0.006)	<.001	–.008 (–0.007 to –0.008)		<.001
Female gender	.049 (0.041 to 0.056)	<.001	–.043 (–0.055 to –0.031)		<.001
EDSSc	–.017 (–0.015 to –0.019)	<.001	N/Ad		N/A

^aQAV: question answering velocity.

^bMS: multiple sclerosis.

^cEDSS: Expanded Disability Status Score.

^dN/A: not applicable.