Page 85 - ON THE WAY TO HEALTHIER SCHOOL CANTEENS - Irma Evenhuis
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                        60
60
CONTROL:
INTERVENTION
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-10 -30
School Number
   50 40 30 20 10
0 -10 -20
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50
40
CONTROL:
  60 20 50 10
40 0 30-10
30
  -20
1
2345
6
789
      10
  -30
School Number
20
10-30 School Number
0
  (a) ContIrNoTlESRcVhENoToIOlsN
Figure 5.3. Histogram of the changes in healthier products available at vending machines.
-10 60 -20 50 -30
1 2 3 4 5 6 7 8 9 10 School Number
CON4T0ROL: 30
60 20 50 10
400 30 -10
20
00 -10 1 2 -10 -20 -20
-30 School Number -30
Figure 3. Histogram of the changes in healthier products available at vending m
(b) Intervention Schools
INTERVENTION 60
50
40
       -30
1 2 3 4 5 6 7 8 9 10 30
20
 10-20 10
5
1 2 3 4 5 6 7 8 9 10 School Number
   60
40 30
Figure 3. Histogram of the changes in healthier products available at vending machines.
(a) ICNoTEnRtVroENl STcIOhNools (b) Intervention Schools
Figure 4. Histogram of the changes in fulfilled accessibility criteria.
Figure 5.4. Histogram of the changes in fulfilled accessibility criteria. 50
Purchases in the cafeteria
20
3
45
School Numb
6
e
r
7 8 9 10
Data on self-reported purchase behaviour at the cafeteria were included in the analysis
10
from01213 students (548 boys, 665 girls) (Table 5.3). Mean purchases of all foods and
-10
-20
1 2 3 4 5 6 7 8 9 10
drinks per week varied between 0.46 and 1.72 per person. Both boys and girls bought more
“less healthy” than healthier products. With regard to changes in weekly purchases in the
-30
cafeteria after 6 moSnchtoholsN,u5mb0e%r of the boys of the IS maintained or changed to healthier
purchase behaviour (Table 5.3). In boys of the CS, this percentage was 51.5%. Among girls,
53.6% maintained or changed to a healthier purchase behaviour in the IS, compared to 46.5% in the CS.
Purchases at the vending machines
Data on self-reported purchase behaviour at vending machines were available for 1217 students (542 boys, 675 girls) (Table 5.4). In the IS, the boys and girls, respectively, bought on average 0.79 and 1.48 healthier, and 0.88 and 1.40 less healthy products per week in vending machines after the intervention. Boys and girls in the CS bought on average 1.13 and 0.87 healthier, and 1.40 and 0.83 less healthy products per week in vending machines after the intervention, respectively. After 6 months, in both the IS and CS, half of the boys maintained or changed to a healthier purchase behaviour (both 49.3%). Among girls, approximately half of the girls in the IS (47.3%) and CS (52.0%) maintained or changed to a healthier purchase behaviour after 6 months.
Figure 4. Histogram of the changes in fulfilled accessibility criteria.
83
 Change in Accessibility Change in AcCchesasnibgielitiny Healthier Offer at Vending Machine
Change in Healthier Offer at Vending Machine
Change in Accessibility
Change in AccesCshibainlitgye in Healthier Offer at Change Vending Machine V
















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