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Table 1 Descriptive Characteristics (percentages or means and standard deviations) for Baseline Sample and Follow-up Sample

From: Explaining the effects of a 1-year intervention promoting a low fat diet in adolescent girls: a mediation analysis

  Baseline sample
(n = 843)
Follow-up sample
(n = 788)
Drop out
(n = 55)
 
  M ± SD M ± SD M ± SD χ2
% Higher SES 39.5 40.0 32.7 1.1
     F drop out
Age (years) 12.9 ± 0.8 12.9 ± 0.8 13.0 ± 0.9 -0.1
Fat intake (g/day) 98.2 ± 39.0 97.8 ± 38.9 103.6 ± 41.1 -1.1
Attitude 3.5 ± 0.6 3.5 ± 0.6 3.3 ± 0.6 2.5**
Self-efficacy 3.5 ± 0.8 3.5 ± 0.8 3.5 ± 0.8 0.4
Social support 2.0 ± 0.7 2.0 ± 0.7 2.1 ± 0.6 -0.3
Perceived benefits 3.1 ± 0.8 3.1 ± 0.8 3.1 ± 0.8 0.6
Perceived barriers 2.2 ± 0.7 2.2 ± 0.7 2.3 ± 0.7 -1.4
  1. **p ≤ 0.01