Table 2 Pearson correlation and Spearman rank correlation (* for values with significance levels below 0.05)

Pearson

LA

1.0000

1.0000

1.0000

1.0000

NA

0.0180

1.0000

−0.0232

1.0000

−0.2456*

1.0000

n/a

–

PA

−0.3761*

0.2732*

1.0000

−0.6422*

−0.3144*

1.0000

−0.6521*

−0.1209*

1.0000

−0.7664*

n/a

–

PDA

−0.1300*

0.2375*

0.8152*

1.0000

−0.3872*

−0.2372*

0.8407*

1.0000

−0.3853*

−0.1130*

0.8401*

1.0000

−0.4661*

n/a

0.8472*

–

Spearman

LA

1.0000

1.0000

1.0000

1.0000

NA

0.0784*

1.0000

−0.1027*

1.0000

−0.2230*

1.0000

n/a

–

PA

−0.5011*

0.2527*

1.0000

−0.7782*

−0.3418*

1.0000

−0.7537*

−0.2206*

1.0000

−0.8193*

n/a

–

PDA

−0.1986*

0.3199*

0.7540*

1.0000

−0.5974*

−0.2708*

0.8395*

1.0000

−0.5973*

−0.1520*

0.8547*

1.0000

−0.6600*

n/a

0.9126*

–