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. 2014 Dec 6;11:149. doi: 10.1186/s12966-014-0149-1

Table 2.

Descriptives and educational differences for demographics, vegetable consumption and potential mediators

Total group (n = 1,342) High-educated (n = 611) Low/moderate-educated (n = 731) T X 2 Df P
Age in years (SD) 49.02 (10.63) 47.23 (11.34) 50.52 (9.76) −5.63 - 1,211.05 <.001*
Sex (% male) 35.5 39.1 32.4 - 6.52 1 .01*
Place of Residence (%) - 9.09 4 .06
Heerlen 24.0 23.4 24.5 - - - -
Roermond 16.0 18.3 14.1 - - - -
Venlo 22.5 24.2 21.1 - - - -
Venray 18.9 17.5 20.0 - - - -
Weert 18.6 16.5 20.4 - - - -
Ethnicity (% non-Western) 1.3 0.8 1.8 - 2.32 1 .13
Vegetable consumption 158.9 (69.30) 168.1 (68.58) 151.2 (69.02) 4.46 - 1,340 <.001*
Individual cognitions
Attitudea 4.16 (0.49) 4.20 (0.48) 4.13 (0.50) 2.44 - 1,340 .02*
Perception of vegetables as being expensivea 3.01 (0.51) 3.02 (0.53) 3.00 (0.50) 0.95 - 1,340 .34
Subjective norma 3.45 (0.82) 3.45 (0.83) 3.45 (0.81) −0.03 - 1,340 .97
Self-efficacya 3.84 (0.84) 3.82 (0.84) 3.84 (0.83) −0.46 - 1,340 .65
Intentiona 4.06 (0.89) 4.08 (0.90) 4.04 (0.89) 0.77 - 1,340 .44
Self-regulation concepts
General self-regulationa 3.48 (0.78) 3.58 (0.77) 3.39 (0.79) 4.65 - 1,340 <.001*
Action planningb 2.24 (0.64) 2.16 (0.65) 2.30 (0.62) −3.91 - 1,340 <.001*
Coping planningb 2.10 (0.64) 2.06 (0.66) 2.13 (0.63) −2.15 - 1,340 .03*
Environmental-level factors
Perception of availability in supermarketa 4.47 (0.65) 4.46 (0.64) 4.48 (0.66) −0.37 - 1,340 .71
Availability of vegetables at homea 4.54 (0.61) 4.59 (0.56) 4.50 (0.64) 2.72 - 1,336.11 .007*

T = Independent t-test; X2 = Chi-square test; Df = Degrees of freedom; *Significant difference between educational levels (P < .05).

aAnswer scale ranging from 1 to 5; bAnswer scale ranging from 1 to 4.