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Table 6 Sub-group analyses for control period and intervention period

From: Menu-engineering in restaurants - adapting portion sizes on plates to enhance vegetable consumption: a real-life experiment

Continuous variables: Pearson correlation-coefficients (r) are reported Vegetable consumption in grams (plate) Vegetable consumption in grams (total, incl. side dishes) Meat/ fish consumption in grams
  Control period Intervention period Control period Intervention period Control period Intervention period
Frequency of visit −.09* −.06 −.13** −.11* .00 .02
Frequency of dining −.03 .07 .07 .07 .07 .04
Age .09 .26*** .13** .24*** −.02 .08
Importance of vegetables when dining .21*** .29*** .29*** .29*** −.02 .05
I highly value a tasteful meal. −.03 −.04 −.02 −.03 −.07 .00
I am very involved with my food choices −.00 .10* .06 .13** −.07 −.03
I have been eating vegetables since I was a child. .01 .04 .03 .03 −.01 .07
I am very particular about the vegetables I will eat. .03 −.06 −.02 −.09 −.11* −.12*
I like vegetables .10* .13** .14** .16*** −.03 .08
I would like to eat more vegetables .07 .03 .15*** .05 −.06 −.01
I know how much vegetables I have to eat during the day. .02 .10* −.02 .11* −.07 .02
I find it difficult to assess whether I eat enough vegetables. −.01 −.09 .05 −.10* −.05 .01
  1. *** p < .001; **p < .01; *p < .05