Table 6.

Multivariate Tobit regression models on Direct Costs (Primary and Specialist Services)

	Primary care services		Specialist services
	No PD	PD	No PD	PD
(Intercept)--	87.2 (66.5, 113.2)	138.3 (106.5, 186.4)	146.2 (107.5, 184.7)	214.3 (151.5, 298.7)
Age	−1.2 (−3.4, 0.9)	−3.0 (−8.2, 0.7)	3.9 a (0.5, 7.0)	−9.3 a (−16.6, −2.4)
Years with diagnosis	2.8 (−0.9, 8.0)	−1.2 (−6.0, 3.6)	−2.6 (−6.2, 0.6)	0.8 (−8.4, 7.9)
FIQ	1.7 (−0.2, 3.0)	4.8 a (1.2, 10.0)	3.9 a (1.8, 6.2)	9.0 a (3.4, 16.3)

Note: Transformed Tobit coefficients with bootstrapped 95 % CIs (^aindicating statistically significant coefficients –alpha = 0.05-). Explanatory variables centred to the sample mean. Accordingly, Intercept approximates the cost of a “mean individual” (aged 55.22, with 14.2 years with diagnosis, and a FIQ score of 56.36). For clarity, significant results are in bold