Table 1

Sociodemographic characteristics of included participants, according to arm of intervention, NutriNet-Santé, 2022, France, n=21 159

	Control arm		Experimental arm		P value
	n	%	n	%
	10 400		10 759
Sex
Women	7621	73.3	7855	73.0
Men	2779	26.7	2904	27.0	0.7
Age category at date of questionnaire
[18–25 years]	76	0.7	109	1.0
[25–50 years]	2577	24.8	2752	25.6
[50–65 years]	3507	33.7	3555	33.0
>65 years	4240	40.8	4343	40.4	0.1
Educational level
<High school degree	3146	30.3	3138	29.2
<3 years after high school	3255	31.3	3330	31.0
≥3 years after high school	3999	38.5	4291	39.9	0.1
Professional situation
Active	4371	42.0	4678	43.5
Inactive	6029	58.0	6081	56.5	0.2
Household monthly income
Less than 1110 euros/month	267	2.6	259	2.4
1110–2330 euros/month	1808	17.4	1922	17.9
2330–3780 euros/month	2906	27.9	3017	28.0
More than 3780 euros/month	3865	37.2	4003	37.2
Do not wish to answer	1554	14.9	1558	14.5	0.7
Area of residence
Unknown	160	1.5	186	1.7
Rural	2286	22.0	2336	21.7
Urban	7954	76.5	8237	76.6	0.5
Primary food shoppers					0.9
Yes	8317	80.0	8612	80.0
Not	563	5.4	588	5.5
Information not available	1520	14.6	1559	14.5