Table 3: Comparison the mean score of variables between the intervention and control groups, at baseline, post-intervention and follow-up (3 months) (N=142).

Variable Intervention Group (n=72) Control Group (n=70) t P-value
mean S.D. mean S.D.
Knowledge
Baseline 5.40 1.19 5.41 1.44 0.052 0.959
Post-intervention 6.88 1.25 6.07 1.32 3.715 0.001*
Follow-up (3 months) 7.28 1.12 6.66 1.20 3.189 0.002*
Stress level
Baseline 46.17 10.28 48.47 9.34 -1.397 0.165
Post-intervention 42.53 8.26 46.01 7.65 -2.609 0.010*
Follow-up (3 months) 40.82 6.82 45.00 6.83 -3.649 0.000*
Stress management
Baseline 24.78 4.87 24.60 5.82 0.198 0.844
Post-intervention 28.24 3.91 25.63 5.58 3.323 0.002*
Follow-up (3 months) 29.80 3.82 26.57 5.03 4.322 0.001*

* Significance at level 0.05