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Table 1 Demographic characteristics of participants by experimental group

From: Effects of calorie labeling and value size pricing on fast food meal choices: Results from an experimental trial

  Total
(n = 594)
% (n)
Caloriea
(n = 151)
% (n)
Priceb
(n = 143)
% (n)
Calorie + pricec
(n = 150)
% (n)
Controld
(n = 150)
% (n)
p-valuee
Age (years)       
   16–25 24.8 (147) 19.9 (30) 31.5 (45) 21.3 (32) 26.7 (40) 0.08
   26–40 19.4 (115) 14.6 (22) 20.3 (29) 22.0 (33) 20.7 (31)  
   41–60 41.8 (248) 46.4 (70) 35.7 (51) 41.3 (62) 43.3 (65)  
   ≥ 61 14.1 (84) 19.2 (29) 12.6 (18) 15.3 (23) 9.3 (14)  
Sex       
   Male 40.6 (241) 37.7 (57) 37.8 (54) 46.0 (69) 40.7 (61) 0.42
   Female 59.4 (353) 62.3 (94) 62.2 (89) 54.0 (81) 59.3 (89)  
Ethnicity       
   Hispanic/Latino 3.4 (20) 1.3 (2) 5.7 (8) 4.0 (6) 2.7 (4) 0.21
   Not Hispanic/Latino 96.6 (567) 98.7 (148) 94.3 (133) 96.0 (144) 97.3 (142)  
Education levelf       
   High school 25.3 (150) 29.1 (44) 23.1 (33) 20.7 (31) 28.2 (42) 0.54
   graduate or less 38.8 (230) 39.1 (59) 41.3 (59) 40.0 (60) 34.9 (52)  
   Some college 35.9 (213) 31.8 (48) 35.7 (51) 39.3 (59) 36.9 (55)  
   College graduate or higher       
Body weightg       
   Normal weight 42.6 (249) 43.2 (64) 45.1 (64) 40.1 (59) 41.9 (62) 0.83
   Overweight 27.9 (163) 27.0 (40) 26.1 (37) 32.7 (48) 25.7 (38)  
   Obese 29.6 (173) 29.7 (44) 28.9 (41) 27.2 (40) 32.4 (48)  
  1. a calorie menu included calorie information for each menu item
  2. b price menu had price modification (standardized pricing) for food items with more than one portion size option
  3. c calorie + price menu included calorie information and price modification (standardized pricing) for food items with more than one portion size option.
  4. d control menu did not include calorie information and had usual food pricing
  5. e p-value calculated from chi-square test.
  6. f For participants 16–19 years of age, the reported education level is that of their parent with the highest degree or level of education.
  7. g For those 16–19 years of age: CDC growth charts were used to calculate percentiles for sex and age. In this table, those < 85th percentile were classified as normal weight; 85–94th percentile were classified as overweight; and ≥ 95th percentile were classified as obese; For those ≥ 20 years of age: body mass index < 25 was classified as normal weight; 25–29.9 was classified as overweight; and ≥ 30 was classified as obese.