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Table 3 Changes in KAP supporting a healthy lifestyle throughout the study (n = 76)

From: Effectiveness of a school-based intervention on knowledge, attitude and practice on healthy lifestyle and body composition in Malaysian adolescents

Variablea IG (n = 34)CG (n = 42)
DifferenceMean difference (95% CI)bp-valueMean difference (95% CI)bp-value
KnowledgePost I – Pre3.71 (1.73, 5.68)*< 0.0011.81 (0.10, 3.52)*0.035
Post II - Pre3.82 (2.07, 5.58)*< 0.0012.24 (0.51, 3.97)*0.007
Post II – Post I0.12 (−1.76, 1.99)1.0000.43 (−0.85, 1.71)1.000
AttitudePost I – Pre−0.53 (−5.20, 4.14)1.0002.83 (−1.73, 7.39)0.385
Post II - Pre−0.15 (−5.39, 5.09)1.0000.05 (−5.36, 5.45)1.000
Post II – Post I0.38 (−4.17, 4.94)1.000−2.79 (−6.80, 1.23)0.272
PracticePost I – Pre2.85 (−7.64, 1.94)0.4282.48 (−1.82, 6.77)0.472
Post II - Pre−1.38 (−6.64, 3.88)1.0003.14 (−2.66, 8.94)0.550
Post II – Post I1.47 (−1.40, 4.34)0.6160.67 (−4.05, 5.38)1.000
  1. *Significant difference (p < 0.05)
  2. aScore range: knowledge (0–32); attitude (24–144); practice (35–175). Higher scores in the respective scales indicate better knowledge of a healthy lifestyle, more positive attitudes towards a healthy lifestyle and a healthier lifestyle being practised
  3. bPairwise comparisons with Bonferroni adjustment for 95% confidence interval for the difference