Table 2.

Mean GHQ scores at baseline and at follow-up adjusted for baseline GHQ scores with analysis of covariance.

	Baseline GHQ score			6-week GHQ score			6-month GHQ score
Treatment	n	Mean	(95% CI)	n	Mean	(95% CI)	n	Mean	(95% CI)
Control	397	21.6	(21.0 to 22.1)	323	16.0	(15.2 to 16.8)	301	14.5	(13.6 to 15.4)
Intervention	365	22.1	(21.5 to 22.8)	287	14.8	(14.0 to 15.6)	244	14.2	(13.2 to 15.2)
						P = 0.04			P = 0.61

Analyses based on actual follow-up data. GHQ = general health questionnaire.