Table 2

Baseline characteristics of male participants in the NutriNet-Santé e-cohort (2009–2014, n=27 016) in comparison with 2009 national estimates for individuals aged ≥18 years in metropolitan France

NutriNet-Santé: raw data, n (%)Census estimates, %*p Value†
Age categories (years)<0.0001
 Age, years, mean (SD)47.3(15.2)
 France (including Corsica and overseas territories)25 507(94.4)86.3
 Europe (excluding France)518(1.9)4.4
 Asia and Oceania113(0.4)1.8
Marital status<0.0001
 Single (never married, living alone)4504(16.7)25.1
 Widowed, divorced, separated2118(7.8)9.6
 Married or cohabiting20 394(75.5)65.3
Educational level<0.0001
 Up to secondary10 493(38.8)75.8
 Some college6570(24.3)10.3
 University degree9953(36.8)13.9
Employment status<0.0001
 Unemployed, disabled, homemaker1918(7.1)4.7
 Farmer, manual labour981(3.6)25.0
 Artisan, self-employed679(2.5)5.1
 Office worker, skilled labour6234(23.1)22.9
 Executive, professional staff7894(29.2)11.7
Geographical area of residence‡<0.0001
 Paris metropolitan area5825(21.6)18.4
 Paris basin3949(14.6)17.2
  • *Census data from INSEE (Institut national de la statistique et des études économiques).

  • †Results of χ2 goodness-of-fit tests using unweighted (raw) cohort data against Census estimates.

  • ‡Geographical division based on the ZEAT (Zone d’études et d’aménagement du territoire) developed by INSEE.