Table 4.

Association of variables with unrecognised bipolar disorder

VariableUBD, mean (SD)Not UBD, mean (SD)Mean difference, 95% CI
Lifetime days AD953.1 (668.9)856.1 (813.8)1.5 (0.8 to 2.7)a
Lifetime number AD2.2 (1.6)2.3 (1.5)0.5 (0.7 to 1.3)a
PC appointments24.2 (24.0)15.4 (10.3)1.4 (0.6 to 2.0)a
Appointment rate5.0 (4.6)6.6 (11.6)0.7 (0.5 to 1.9)a
BADDS PS depression38.1 (19.5)23.6 (22.8)1.4 (0.7 to 2.8)a
BADDS LT depression59.7 (10.7)50.0 (15.4)1.2 (1.0 to 1.4)a
SF36 PHC53.6 (8.5)50.6 (11.3)3.1 (−2.4 to 8.5)
SF36 MHC22.6 (11.1)30.7 (13.4)8.36 (1.8 to 14.9)
  • a Back-transformed from transformed data. AD = antidepressant. BADDS = Bipolar Affective Disorder Dimension Scale. LT = lifetime. MHC = mental health component. PC = primary care. PHC = physical health component. PS = present state. UBD = unrecognised bipolar disorder. Appointment rate = number of appointments per year for a mental health problem.