Adjusted logistic regression of being Rifampicin mono-resistant, assessing the effect of age, overall and stratified by gender.

*<p>Adjusting for gender and quarter.</p>**<p>Adjusting for quarter.</p

Rifampicin mono-resistance over quarters from 2007 to 2009 overall and by gender.

*<p>A total of 431 patients had missing gender data.</p

Sexual behavior.

<p>Sexual behavior.</p

Condom use.

<p>Condom use.</p

HIV/AIDS awareness and knowledge.

<p>HIV/AIDS awareness and knowledge.</p

Perceived ability to choose to use a condom and predictors of condom use at last sexual encounter.

<p>Perceived ability to choose to use a condom and predictors of condom use at last sexual encounter.</p

Baseline demographic and behavioural characteristics of South African women at high risk of HIV acquisition stratified by HIV status [25].

#<p>Acute HIV Infection.</p

Signs and symptoms associated with acute HIV infection.

*<p>Odds Ratio adjusted for repeated measures.</p><p>Note: Signs and symptoms reported with <5% frequency in the AHI cases or p>0.15 were omitted. These included splenomegaly, anal ulcers, swollen joints, gingivitis, observed fever, aseptic meningitis, peripheral neuropathy, conjunctivitis, hepatomegaly, photophobia, parasthaesia, retro-orbital headache and neck stiffness.</p

Signs and symptoms according to HIV diagnostic test.

*<p>Fisher’s Exact test.</p

Unadjusted and adjusted analysis of signs and symptoms associated with acute HIV Infection.

*<p>Model for behavioural and demographic factors adjusted for age in years, relationship status, education and age at sexual debut (data not shown), while model for symptoms and signs adjusted for sore throat, rash, loss of appetite, weight loss, genital ulcers and vaginal discharge.</p>**<p>Risk score model adjusting for age, sore throat, rash, loss of appetite, weight loss, genital ulcers and vaginal discharge.</p