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. 2015 Apr 8;11(4):e1004754. doi: 10.1371/journal.ppat.1004754

Table 3. Associations between principal component (PC) scores and outcome.

PC1 PC2
Mean (SE) Delta p-value Mean (SE) Delta p-value
Mortality (2 weeks) Alive 0.09 (0.12) -0.95 0.01 0.01 (0.09) -0.05 0.8
Dead -0.49 (0.44) -0.08 (0.13)
IRIS No IRIS 0.14 (0.12) -0.08 0.3 0.12 (0.09) -0.63 0.004
IRIS -0.25 (0.48) -0.75 (0.18)

The adjusted p values shown were derived from a linear regression model adjusting for treatment group, CD4+-cell count, and the previously described risk factors for mortality, baseline fungal burden and altered mental status. The adjusted delta is the β-coefficient derived from the adjusted linear regression model. Unadjusted p-values were 0.09 (PC1) and 0.7 (PC2).

The association between PC2 and IRIS remained significant in both the linear regression model adjusting for treatment group, CD4+-cell count, and the previously described risk factors for mortality, baseline fungal burden and altered mental status, as described above (p = 0.004), and a linear regression model (results shown in table) adjusting for treatment group and the known risk factors for IRIS, baseline fungal burden and CSF white cell count (p = 0.004). Unadjusted p-value = 0.001. The adjusted delta is the β-coefficient derived from the adjusted linear regression model.