Factors associated with primary HIV drug resistance by duration of HIV infection - univariate logistic regression.

<p><b>Abbreviations:</b> HBsAg – hepatitis B surface antigen, anti-HCV – antibody to hepatitis C virus.</p>*<p>p-value is for test for trend (excluding missing values) for age groups, CDC category, and HIV RNA.</p

Distribution of reverse transcriptase resistance-associated mutations among 1,798 antiretroviral-naive HIV-infected patients.

<p>Abbreviations: NRTI; nucleoside reverse transcriptase inhibitor, NNRTI; non-nucleoside reverse transcriptase inhibitor.</p

Baseline characteristics of 1,798 HIV-infected antiretroviral therapy-naïve patients stratified by duration of HIV infection.

<p><b>Abbreviations:</b> HBsAg – hepatitis B surface antigen, anti-HCV – antibody to hepatitis C virus.</p>*<p>p-value calculated for categorical data that did not include missing values, using Chi-square test or Fisher's exact test.</p

Distribution of protease resistance-associated mutations among 1,798 antiretroviral-naive HIV-infected patients.

<p>Distribution of protease resistance-associated mutations among 1,798 antiretroviral-naive HIV-infected patients.</p