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Table 3 The mean difference and the Cohen’s d effect size from the inferential analysis

From: Hand grip strength as a physical biomarker of aging from the perspective of a Fibonacci mathematical modeling

Subgroups

Mean difference

Cohen’s d

R HGS, men 55 years old (n = 58) versus R HGS, men 89 years old (n = 31)

19.73

6.98

L HGS, men 55 years old (n = 58) versus L HGS, men 89 years old (n = 31)

18.65

6.29

Relative HGS – R/L, men 55 years old (n = 58) versus relative HGS – R/L, men 89 years old (n = 31)

1.19

4.85

D HGS, men 55 years old (n = 58) versus D HGS, men 89 years old (n = 31)

20.14

8.36

ND HGS, men 55 years old (n = 58) versus ND HGS, men 89 years (n = 31)

18.24

8.72

Relative HGS – D/ND, men 55 years old (n = 58) versus relative HGS – D/ND, men 89 years old (n = 31)

1.19

4.85

R HGS, women 55 years old (n = 62) versus R HGS, women 89 years old (n = 39)

13.62

7.04

L HGS, women 55 years old (n = 62) versus L HGS, women 89 years old (n = 39)

12.98

8.94

Relative HGS – R/L, women 55 years old (n = 62) versus relative HGS – R/L, women 89 years old (n = 39)

0.9

5.66

D HGS, women 55 years old (n = 62) versus D HGS, women 89 years old (n = 39)

13.65

7.48

ND HGS, women 55 years old (n = 62) versus ND HGS, women 89 years old (n = 39)

12.95

9.37

Relative HGS – D/ND, women 55 years old (n = 62) versus relative HGS – D/ND, women 89 years old (n = 39)

0.9

5.66

  1. HGS hand grip strength, R: right L left, D dominant, ND non-dominant, n number of subjects