Table 5

Primary clinical outcomes (VAS and HAQ) at 1 year by HADS status and scan offer

Outcome	HADS status	Scan offered	Baseline mean	1 yearmean	Difference at 1 year, Y−N	Adjusted difference at 1 year*, Y−N (95% CI)	p* (interaction scan×HADS status)
*Controlling for baseline.
VAS worry	Negative	N	52.0	38.7	1.34	−5.40 (−19.01 to 8.21)	0.80
	Negative	Y	66.6	40.1	1.34	−5.40 (−19.01 to 8.21)
	Positive	N	72.5	49.6	−3.50	−2.7 (−22.60 to 16.10)
	Positive	Y	71.0	46.1	−3.50	−2.7 (−22.60 to 16.10)
HAQ health, worry	Negative	N	5.76	5.33	−0.72	0.01 (−1.78 to 1.78)	0.61
and preoccupation	Negative	Y	4.77	4.62	−0.72	0.01 (−1.78 to 1.78)
	Positive	N	8.77	8.31	−0.58	0.45 (−2.18 to 3.08)
	Positive	Y	6.77	7.73	−0.58	0.45 (−2.18 to 3.08)
HAQ fear of illness	Negative	N	4.55	4.25	−0.86	−0.15 (−1.54 to 1.25)	0.52
	Negative	Y	3.36	3.39	−0.86	−0.15 (−1.54 to 1.25)
	Positive	N	5.38	5.31	0.51	0.80 (−1.19 to 2.78)
	Positive	Y	5.05	5.82	0.51	0.80 (−1.19 to 2.78)
HAQ reassurance	Negative	N	1.43	2.05	−0.40	−0.45 (−1.06 to 0.17)	0.78
seeking behaviour	Negative	Y	1.50	1.64	−0.40	−0.45 (−1.06 to 0.17)
	Positive	N	2.14	2.57	−0.62	−0.24 (−1.28 to 0.80
	Positive	Y	1.63	1.95	−0.62	−0.24 (−1.28 to 0.80
HAQ life interference	Negative	N	3.30	2.70	−0.53	−0.64 (−1.79 to 0.51)	0.27
	Negative	Y	3.55	2.17	−0.53	−0.64 (−1.79 to 0.51)
	Positive	N	5.15	3.23	0.22	0.39 (−1.21 to 1.99)
	Positive	Y	4.68	3.45	0.22	0.39 (−1.21 to 1.99)