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Table 5 Percent of parents who packed foods from the “My Plate” groups in the child’s lunch

From: Efficacy of the Lunch is in the Bag intervention to increase parents’ packing of healthy bag lunches for young children: a cluster-randomized trial in early care and education centers

 

Intervention Percent (Standard Error)

Control Percent (Standard Error)

Fruit

  

 Pre-Intervention Baseline

91.3 (2.6)

89.4 (2.5)

 Post-Intervention 6-week follow-up

93.7 (2.6)****

86.3 (2.5)

 Pre-Booster 22-week follow-up

93.2 (2.6)****

86.1 (2.6)

 Post-Booster 28-week follow-up

92.6 (2.6)

87.7 (2.6)

Vegetables

  

 Pre-Intervention Baseline

52.8 (4.7)

45.8 (4.5)

 Post-Intervention 6-week follow-up

70.9 (4.7)***,******

42.6 (4.6)

 Pre-Booster 22-week follow-up

58.2 (4.7)

45.9 (4.6)

 Post-Booster 28-week follow-up

65.1 (4.7)***,*****

45.5 (4.7)

Whole grains

  

 Pre-Intervention Baseline

41.9 (5.0)

45.7 (5.0)

 Post-Intervention 6-week follow-up

47.3 (5.0)****

39.1 (5.0)

 Pre-Booster 22-week follow-up

51.7 (5.1)**,******

36.9 (5.1)*

 Post-Booster 28-week follow-up

46.8 (5.1)*****

36.0 (5.1)*

Refined grains

  

 Pre-Intervention Baseline

91.0 (3.3)

85.8 (3.2)

 Post-Intervention 6-week follow-up

86.4 (3.3)

86.9 (3.3)

 Pre-Booster 22-week follow-up

80.9 (3.3)***,*****

87.8 (3.3)

 Post-Booster 28-week follow-up

86.7 (3.3)

85.2 (3.3)

Meats/beans/eggs/nuts

  

 Pre-Intervention Baseline

89.3 (2.9)

93.5 (2.9)

 Post-Intervention 6-week follow-up

90.1 (2.9)

93.3 (2.9)

 Pre-Booster 22-week follow-up

93.4 (3.0)

92.9 (3.0)

 Post-Booster 28-week follow-up

87.6 (3.0)

91.9 (3.0)

Dairy

  

 Pre-Intervention Baseline

82.3 (3.2)

83.8 (3.1)

 Post-Intervention 6-week follow-up

87.5 (3.2)

82.9 (3.2)

 Pre-Booster 22-week follow-up

81.1 (3.2)

84.7 (3.2)

 Post-Booster 28-week follow-up

84.4 (3.2)

82.4 (3.2)

  1. *within-groups change baseline to follow-up P < .05, **P < .01, ***P < .001
  2. ****treatment-by-time interaction baseline to follow-up P < .05, *****P < .01, ******P < .001
  3. Percentages and standard errors are based on mixed-effects models of the treatment-by-time interaction that adjusted for repeated measures within families and nesting of families within ECE centers. The models were based on data from 4712 lunches packed by parents for their preschool children. Each model compared the given measurement period to baseline. The models also were adjusted for gender, age, heritage, parental marital status and parental education. Percent of parents packing the given foods was based on the occurrence of any amount of the food on at least one of the two days in the measurement period