Table 4: Hypothesis Testing of Conditional Correlation

Hypotheses Partial Gamma Coefficient P - Values #
Inter-Correlated Locations Separators Examiner 1 Examiner 2 Examiner 1 Examiner 2
1. Supraclavicular + clavicular brachial plexus Suprascapular nerve 0.90 0.55 0.000** 0.004**
2. Supraclavicular brachial plexus + suprascapular nerve Clavicular brachial plexus 0.80 0.86 0.000** 0.000**
3. Clavicular + infraclavicular brachial plexus Axillary nerve 1.00 0.98 0.000** 0.000**
4. Clavicular brachial plexus + axillary nerve Infraclavicular brachial plexus + suprascapular nerve 0.28 -0.50 0.214 0.071
5. Clavicular brachial plexus + suprascapular nerve Supraclavicular brachial plexus + axillary nerve -0.40 0.48 0.153 0.034*
6. Infraclavicular brachial plexus + axillary nerve Clavicular brachial plexus 1.00 0.99 0.000** 0.000**
7. Infraclavicular brachial plexus + musculocutaneous nerve Median nerve (elbow) 1.00 0.86 0.000** 0.000**
8. Infraclavicular brachial plexus + radial nerve (elbow) Radial nerve (wrist) + median nerve (elbow) 0.65 0.61 0.038* 0.005**
9. Infraclavicular brachial plexus + radial nerve (elbow) Median nerve (elbow) + carpal tunnel syndrome 0.83 0.68 0.003** 0.000**
10. Infraclavicular brachial plexus + radial nerve (elbow) Median + ulnar nerves (elbow) 0.90 0.62 0.000** 0.000**
11. Infraclavicular brachial plexus + radial nerve (elbow) Median nerve (elbow) + ulnar nerve (wrist) 0.90 0.65 0.000** 0.000**
12. Infraclavicular brachial plexus + median nerve (elbow) Musculocutaneous nerve + radial + ulnar nerves (elbow) 0.67 0.41 0.037* 0.101
13. Infraclavicular brachial plexus + ulnar nerve (elbow) Radial + median nerves (elbow) 0.00 0.10 0.763 0.450
14. Infraclavicular brachial plexus + ulnar nerve (elbow) Radial nerve (wrist) + median nerve (elbow) -0.40 0.35 0.448 0.135
15. Infraclavicular brachial plexus + ulnar nerve (elbow) Median nerve (elbow + wrist) -0.20 0.00 0.643 0.391
16. Infraclavicular brachial plexus + ulnar nerve (elbow) Median nerve (elbow) + ulnar n. (wrist) 0.50 0.16 0.698 0.293
17. Axillary + suprascapular nerves Clavicular brachial plexus 0.74 0.75 0.002** 0.000**
18. Musculocutaneous nerve + median nerve (elbow) Infraclavicular brachial plexus 0.53 0.50 0.026* 0.003**
19. Radial nerve (elbow + wrist) Carpal tunnel syndrome 0.73 0.70 0.000** 0.000**
20. Radial nerve + median nerve (elbow) Infraclavicular brachial plexus + radial nerve (wrist) 0.71 0.00 0.019* 0.428
21. Radial nerve + median nerve (elbow) Infraclavicular brachial plexus + carpal tunnel syndrome 0.26 0.36 0.222 0.051
22. Radial nerve (wrist) + carpal tunnel syndrome Radial nerve (elbow) 0.53 0.57 0.015* 0.001**
23. Median nerve (elbow) + carpal tunnel syndrome Radial nerve + ulnar nerve (elbow) 0.85 0.87 0.001** 0.001**
24. Median nerve (elbow) + carpal tunnel syndrome Radial nerve (elbow) + ulnar nerve (wrist) 0.91 0.66 0.000** 0.003**
25. Median nerve (elbow) + carpal tunnel syndrome Radial nerve (wrist) + ulnar nerve (elbow) 0.98 0.75 0.000** 0.003**
26. Median nerve (elbow) + carpal tunnel syndrome Radial + ulnar nerves (wrist) 0.96 0.75 0.000** 0.000**
27. Median + ulnar nerves (elbow) Infraclavicular brachial plexus + carpal tunnel syndrome 0.23 0.60 0.254 0.006**
28. Median + ulnar nerves (elbow) Infraclavicular brachial plexus + ulnar nerve (wrist) 0.43 0.73 0.139 0.003**
29. Carpal tunnel syndrome + ulnar nerve (wrist) Ulnar nerve (elbow) 0.15 0.60 0.343 0.001**
30. Ulnar nerve (elbow + wrist) Carpal tunnel syndrome 0.86 0.63 0.000** 0.001**

The partial correlation between two individual locations of neuropathy that cannot be explained through correlations with neuropathy assigned to other locations. The coefficient of correlation is expressed by the gamma-coefficient (gamma > 0.35 expresses a strong correlation).
# Monte Carlo estimates of exact P-values [40].
* P < 0.05 (one-sided).
** P< 0.01 (one-sided).