Table 3

Mean costs (in 1998 Canadian dollars) in each randomised arm

	Study year (1st year)				Following years (5.4 years)		Total costs (mean 6.4 years)
	Experimental intervention costs Mean (Q1–Q3)†	Usual health care costs Mean (Q1–Q3)†	Intervention costs* Mean (Q1–Q3)†	Consequences of disease costs‡ Mean (Q1–Q3)†	Intervention costs§ Mean (Q1–Q3)†	Consequences of disease costs‡ Mean (Q1–Q3)†	Intervention costs§ Mean (Q1–Q3)†	Consequence of disease costs Mean (Q1–Q3)†
*Intervention cost = experimental intervention cost + usual health care costs.
†Q1: first quartile; Q3: third quartile.
‡Consequences of disease costs = income replacement.
§Intervention cost (5.4 years) = only usual health care costs.
Standard care (n=26)	0 (0–0)	$2656 ($959–$3683)	$2656 ($959–$3683)	$7133 ($1407–$10596)	$6905 ($0–$3700)	$16384 ($0–$11657)	$9562 ($1801–$10767)	$23517 ($1859–$17599)

Clinical (n=31)	$3243 ($429–$6500)	$2337 ($946–$3202)	$5580 ($1226–$9643)	$6458 ($1372–$11494)	$1277 ($0–$1530)	$3586 ($0–$888)	$6857 ($1305–$13901)	$10045 ($1376–$13631)

Occupational (n=22)	$787 ($188–$1281)	$2254 ($553–$3187)	$3040 ($741–$4506)	$6529 ($1513–$9628)	$392 ($0–$151)	$6291 ($0–$114)	$3432 ($1028–$4530)	$12820 ($1532–$11250)

Sherbrooke model (n=25)	$3291 ($919–$3065)	$2331 ($1209–$2274)	$5622 ($2039–$9946)	$6515 ($2446–$9359)	$1812 ($20–$2093)	$545 ($0–$158)	$7434 ($2268–$14316)	$7060 ($3833–$9359)