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Table 3 Clinical characteristics of the patient groups

From: Prophylactic lithium treatment and cognitive performance in patients with a long history of bipolar illness: no simple answers in complex disease-treatment interplay

  Non-Li group Li group
Duration of illness in years, mean (SD) 20.1 (10.1) 23.8 (9.0)
Bipolar I, % 56% 59%
Medical comorbidity, %   
High blood pressure and any cardiovascular disease 28% 16%
Diabetes mellitus 4% 7%
 Thyroid disorder 8% 36%
 Asthma and any lung disease 12% 5%
 Rheumatism, arthritis 16% 5%
Medication, %   
 Lithium 0% 100%
 Valproate 35% 5%
 Carbamazepine 17% 7%
 Lamotrigine 21% 7%
 Atypical antipsychotics 41% 12%
 Non-tricyclic AD 45% 21%
 Benzodiazepines 10% 2%
  1. AD, antidepressant.