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Table 2 Univariate and multivariate analysis of possible factors associated with low serum phosphorus at week 24 after switching NRTI

From: Renal impairment after switching from stavudine/lamivudine to tenofovir/lamivudine in NNRTI-based antiretroviral regimens

Parameters Univariate analysis Multivariate analysis
  Beta 95%CI of Beta P value Beta 95%CI of Beta P value
Receiving efavirenz 0.320 0.099 to 0.739 0.011 0.321 0.098 to 0.714 0.011
Age -0.434 -0.056 to -0.017 <0.001 -0.329 -0.049 to -0.006 0.015
Serum phosphorus at week 0 0.423 0.164 to 0.720 0.002 0.298 0.023 to 0.599 0.035
Negative HBsAg -0.231 -1.278 to 0.054 0.071 0.070 -0.458 to 0.826 0.567
Female gender 0.237 -0.020 to 0.671 0.064 0.037 -0.306 to 0.405 0.781