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Table 1 Descriptive statistics and Pearson’s correlation coefficients of the measurements

From: Physical activity improves mental health through resilience in Hong Kong Chinese adolescents

     Correlation coefficients
  n Mean SD 2 3 4 5 6 7 8
1. Age (years) 769 12.28 0.77 0.00 −0.02 0.02 0.02 −0.05 −0.07 0.06
2. Physical activity level 695 5.41 2.68   0.66*** 0.21*** 0.25*** 0.05 0.06 0.09*
3. Mental well-being 751 48.02 8.43    0.33*** 0.44*** 0.34*** 0.35*** 0.02
4. Self-efficacy 757 27.70 6.06     0.66*** 0.26*** 0.25*** 0.09*
5. Resilience 736 64.38 16.57      0.43*** 0.39*** 0.05
6. School connectedness 753 23.58 4.98       0.67*** −0.05
7. Family connectedness 754 43.28 9.47        −0.01
8. SES 775 −1.69 1.00        
  1. n = Effective sample size; SD = Standard Deviation; SES = Socioeconomic status; *p < 0.05; ***p < 0.001.