Fig. 3

Multimorbidity UpSet plot. The plot shows the frequencies of all combinations of co-occurring mental health and smoking-related chronic physical conditions in the cohort, according to recorded past diagnoses. Restricted to first admission only (N = 1794). The dots represent the presence of a condition, ranging from all five conditions absent on the far left to all five conditions present on the far right, with all commonly co-occurring combinations of conditions (i.e. > 9 cases in cohort) in between. Mental illness includes all conditions from chapter F of the ICD-10, excluding diagnoses pertaining to nicotine dependence (F17). Frequencies fewer than 10 suppressed to prevent deanonymisation