Table 6.

Comparison of mean response time for questionnaires (in minutes) according to educational level and self-evaluated computer skills, NutriNet-Santé Study, France, 2013.^a

Type of questionnaire	Educational level					Level of computer skills
	>12 y		≤12 y		P	Experienced		Novice		P
	Mean	SEM	Mean	SEM		Mean	SEM	Mean	SEM
Sociodemographic	12.9	0.07	14.4	0.08	<.001	12.7	0.05	14.6	0.09	<.001
Anthropometric	9.6	0.06	11.6	0.07	<.001	9.9	0.05	11.3	0.08	<.001
Health	10.9	0.07	13.2	0.08	<.001	11.2	0.05	13.0	0.09	<.001
Physical activity	11.2	0.06	12.4	0.07	<.001	11.0	0.05	12.6	0.08	<.001
Dietary intake	22.5	0.11	22.5	0.12	.90	21.0	0.09	24.0	0.15	<.001
Completion time deemed acceptable for a NutriNet-Santé questionnaire	29.3	0.55	36.3	0.64	<.001	29.7	0.44	35.9	0.77	<.001

^a Linear regression analyses mutually adjusted for gender, age, education, and level of computer skills. Mean completion time of questionnaires was log-transformed to improve normality.