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Table 3 Pearson correlation coefficients for the association between each quantitative test and Work Ability Index

From: Physical capacity and psychological mood in association with self-reported work ability in vibration-exposed patients with hand symptoms

Variable

Mean value (SD)

Pearson correlation coefficient (r) and 95% CI

p-value

Hand grip strength (kg)

42 (16)

0.32 (0.028 – 0.56)

0.033

Key grip/Pinch key (kg)

9.6 (3.0)

0.33 (0.049 – 0.57)

0.023

Pinch 3-chuck (kg)

8.6 (2.8)

0.27 (−0.017 – 0.52)

0.064

Purdue Pegboard®

12 (2.2)

0.32 (0.029 – 0.56)

0.032

  1. SD = standard deviation.
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Journal of Occupational Medicine and Toxicology

ISSN: 1745-6673