Fig. 6From: Parent-offspring regression to estimate the heritability of an HIV-1 trait in a realistic setupSPVL heritability—including covariates. Heritability was measured using a mixed-effect model on transmission pairs and transmission clusters using the same definition of genetic distance <0.01 and bootstrap >0. We corrected for the host factors sex, age, risk (MSM, HET, IDU), ethnicity and center of treatment, separately (middle bars) and altogether (rightest bars)Back to article page