Table 3.

Results on primary outcome measure: the Neck Pain and Disability Scale. All estimates adjusted for treatment center, sex, chronicity, and baseline value. Lower scores are better on the Neck Pain and Disability Scale.

	General Exercise	6 Weeks		p	General Exercise	6 Months		p
		Specific Exercise	Difference^*(95% CI)			Specific Exercise	Difference^*(95% CI)
		Primary analysis
Intention to treat analysis^†	43.31	44.81	–1.50 (–9.00, 6.00)			0.69	46.30		39.99	6.31 (–3.67, 16.29)	0.21
Sensitivity analysis
Analysis on complete data	45.44	45.02	0.42 (–8.77, 9.61)	0.93	49.06	43.00	6.06 (–4.99, 17.10)	0.28

↵* Difference calculated as general exercise group score minus specific exercise group score.
↵† Missing values imputed: 17 at 6 weeks, 16 at 6 months.