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. 2026 Jan 8;18:125. doi: 10.1186/s13102-025-01457-z

Table 7.

Multicollinearity diagnostics for hypoxia dose parameters – a pearson correlation matrix

Variable FiO₂ % Session Duration Frequency Weeks Total Hours Composite Dose
FiO₂ % 1.000
Session Duration −0.270 1.000
Frequency 0.158 −0.249 1.000
Weeks −0.032 0.710*** −0.688*** 1.000
Total Hours −0.138 0.892*** −0.514 0.945*** 1.000
Composite Dose −0.235 0.898*** −0.524 0.932*** 0.995*** 1.000

Pairwise Pearson correlation coefficients among dose variables

***p < 0.001 indicating high correlation (|r| >0.7)