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Table 3 Unadjusted and adjusted association with dual therapy discontinuation by any cause (Cox proportional Hazard Model)

From: Switching to boosted protease inhibitor plus a second antiretroviral drug (dual therapy) for treatment simplification: a multicenter observational study

 

Unadjusted HR (95 % CI)

Adjusted HR (95 % CI)

P value

Male gender

1.08 (0.63–1.86)

1.12 (0.65–1.92)

n.s.

Age (by year)

1.09 (0.98–1.02)

1.00 (0.97–1.03)

n.s.

Non-Italian origin

0.45 (0.17–1.24)

0.43 (0.15–1.24)

n.s.

Years on cART (each)

0.97 (0.94–1.01)

0.94 (0.89–1.00)

0.033

IDU as risk factor

1.02 (0.93–1.12)

1.01 (0.91–1.11)

n.s.

AIDS diagnosis

1.19 (0.75–1.89)

0.84 (0.49–1.44)

n.s.

No. of previous regimens (per each one more)

1.04 (1.00–1.09)

1.10 (1.01–1.13)

0.027

CD4 nadir (by 50)

1.37 (0.84–2.21)

1.43 (0.81–2.52)

n.s.

<200 /mmc Baseline CD4 count

2.07 (1.19–3.60)

2.18 (1.18–4.03)

0.013

HCV coinfection

0.99 (0.61–1.60)

1.26 (0.75–2.11)

n.s.

Previous virological failure

0.89 (0.55–1.42)

1.14 (0.95–1.38)

n.s.

Switch to (PI/r)

 ATV/r

0.79 (0.41–1.49)

0.29 (0.09–0.99)

0.049

 DRV/r

0.61 (0.39–0.96)

0.21 (0.07–0.63)

0.005

 LPV/r

2.06 (1.25–3.42)

0.46 (0.14–1.50)

n.s.

Switch to (Second Drug)

 ETR

1.41 (0.83–2.40)

0.62 (0.23–1.68)

n.s.

 RAL

0.67 (0.43–1.05)

0.37 (0.13–1.04)

n.s.

 MVC

0.74 (0.34–1.62)

0.49 (0.15–1.62)

n.s.

 3TC

1.66 (0.62–3.84)

0.65 (0.18–2.39)

n.s.

 TDF

1.39 (0.67–2.91)

0.59 (0.18–1.93)

n.s.