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. 2017 Jul 27;12(8):1357–1365. doi: 10.2215/CJN.11311116

Table 4.

Comparison of different working correlation structures using quasilikelihood information criterion

Working Correlations Estimate, ml/min per 1.73 m2 SEM, ml/min per 1.73 m2 per year P Value QIC
Independence −0.17 0.32 0.60 84,143.50
Exchangeable −0.94 0.21 <0.001 84,137.98
Autoregressive −1.33 0.23 <0.001 84,140.64

Coefficients for year × APOL1, with APOL1 =2. Exchangeable correlation structure achieved the smallest QIC and hence, was more appropriate for the data. QIC, quasilikelihood information criterion.