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Table 2 Implementation of Daily provision of free FV : assessed at the individual-, school- and class level

From: Implementation of strategies to increase adolescents’ access to fruit and vegetables at school: process evaluation findings from the Boost study

Process evaluation concept Source and timing of data collection  
Teacher midway survey Teacher follow-up survey Pupils follow-up survey
Individual level: average implemen-tation level (A) School level: no of schools ≥80% implementation/all responding schools Individual level: average implementation level (A) School level: no of schools ≥80% implementation/all responding schools Individual level: average implementation level School level: No of schools ≥80% implementation/all responding schools Class level: no of classes ≥80% implementation/all responding classes
Fidelity
FV are always fresh at delivery 79% (0-100%) 10/17 94% (0-100%) 15/17 68% (A: 46-83%, B:17-100% ) 2/20 13/55
FV always appear nice and appetizing 76% (0-100%) 11/17 82% (0-100%) 11/17 64% (A: 42-85%, B: 13-100%) 2/20 11/55
Pupils have been able to taste many different kinds of fruit    87% (0-100%) 14/18 73% (A: 57-93%, B: 35-100% ) 4/20 13/55
Pupils have been able to taste many different kinds of vegetables    64% (0-100%) 7/18 50% (A: 27-86%, B: 10-100%) 1/20 2/55
Dose delivered
FV was delivered twice a week        
September 45% (0-100%) 7/17      
October 68% (0-100%) 11/17      
November 82% (0-100%) 14/17      
December 86% (0-100%) 15/17      
January 86% (0-100%) 15/17      
February    89% (0-100%) 13/14    
March    83% (0-100%) 12/14    
April    89% (0-100%) 13/14    
May    89% (0-100%) 13/14    
June    67% (0-100%) 9/14    
The pupils were offered Boost FV 5 days a week 85% (0-100%) 12/17 64% (0-100%) 6/17    
Dose received
Enough FV for every pupil to get one piece a day 58% (0-100%) 5/17 55% (0-100%) 6/17 44% (A: 23-63%, B: 10-80%) 0/20 2/55
Pupils ate FV last time they were in school (CT data)        
1st period      89%s   
2nd period      87%   
3rd period      89%   
Pupils ate Boost FV daily      45% (A: 13-72%, B: 7-77%) 0/20 0/55
Reach of intervention among subgroups
How often have the pupils eaten the Boost FV
High SEP      46%   
Medium SEP      45%   
Low SEP      42% (P = 0.6941)   
Girls      42%   
Boys      48% (P = 0.0543)   
  1. A: School range: minimum and maximum percentage of teachers/pupils identified across schools.
  2. B: Class range: minimum and maximum percentage of pupils identified across schools.
  3. CT: Computer tailoring.
  4. FV: fruit and vegetables.
  5. SEP: socioeconomic position.