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. Author manuscript; available in PMC: 2018 Apr 3.
Published in final edited form as: Mech Ageing Dev. 2014 Jul 8;139:49–57. doi: 10.1016/j.mad.2014.06.005

Table 5.

Correlation matrix and Hazard ratios comparison for mortality.

Measure PCA1 PCS IIS WSS HR(95% CI)
PCA1 1 – – – 1.33 (1.16–1.53)
PCS 0.88 1 – – 1.18 (1.04–1.34)
IIS 0.86 0.84 1 – 1.47 (1.26–1.72)
WSS 0.91 0.93 0.92 1 1.54 (1.26–1.88)

Notes: PCA1, scores from the first axis of PCA with 19 biomarkers; PCS, scores from the first axis of PCA with 5 biomarkers; ISS, inflammatory index score was calculated as follows ISS, 1/3 IL-6 + 2/3 STNF-RI; WSS, weighted summary score was calculated as a weighted sum of the 5 biomarkers.