Fig. 3

Directed Acyclic Graph with Arrows Depicting Directional Probability of Biopsychological Variables in Patients undergoing Cardiac Surgery. BMI = Body Mass Index, CRP = C-reactive protein, EUR = EuroSCORE II - Risk of 30-day mortality, EXC = Illness Perception Expectations: Consequences, EXD = Pain Disability Index: Expectations (sum), EXP = Illness Perception Expectations: Personal Control, EXT = Illness Perception Expectations: Treatment Control, ICH = Illness Perception: Coherence (Item 7 BIPQ), ICO = Illness Perception: Consequences (Item 1 BIPQ), ICR = Illness Perception: Concern & Emotional Response (Item 6 + 8, BIPQ), IID = Illness Perception: Identity (Item 5 BIPQ), IPC = Illness Perception: Personal Control (Item 3 BIPQ), ITC = Illness Perception: Treatment Control (Item 4 BIPQ), ITL = Illness Perception: Timeline (Item 2 BIPQ), MH = Short Form Health: Current Mental Quality of Life (sum), PDI = Pain Disability Index: Current Disability (sum), PH = Short Form Health: Current Physical Quality of Life (sum). The nodes BMI, CRP, EUR, EXC, EXP, ICH, IPC are not depicted here as they were not connected to any other node. The thickness of the edges indicates the directional probability - the proportion of averaged bootstrapped networks where this edge points in this direction yielding an estimate of confidence in the directionality of the connection.