Fig. 1From: Combined models for pre- and post-treatment longitudinal biomarker data: an application to CD4 counts in HIV-patients‘Spaghetti plot’ of the square root of CD4 counts from a random sample of 100 patients. Patients are from the UK Register of HIV Seroconverters dataset. Lines are semi-translucent to aid visualisation. Time has been centred at the time of highly active antiretroviral therapy (HAART) initiation for each patientBack to article page