Table 2.

GP involvement, sickness and disability pre- and post-biologic treatment

Variable	1 year pre-biologic	1 year post-biologic	Difference (95% CI)
GP involvement attended, mean (s.d.)
AS (n = 295)	69.7 (143.5)	8.8 (26.3)	60.9 (44.2, 77.6)*
PsA (n = 378)	75.1 (167.4)	10.7 (36.3)	64.4 (44.9, 83.9)*
Proportion of patients issued sick notes by GP, % (n)
AS (n = 295)	5.8 (17)	<1.7	>4.1 (1.0, 7.5)*
PsA (n = 378)	5.3 (20)	<1.4	>4.0 (1.4, 6.8)*
Proportion of patients receiving disability living allowance, % (n)
AS (n = 295)	15.9 (47)	<1.7	>14.2 (9.9, 18.9)*
PsA (n = 378)	15.6 (59)	<1.4	>14.3 (10.6, 18.4)*

^*P < 0.05. ^†Data suppressed to protect patient anonymity as <5 records.