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. 2008 May 1;58(550):324–330. doi: 10.3399/bjgp08X280182

Table 3.

Frequent attenders' mean consultations by group.

	Intervention group (IG)		Control group 1 (CG1)		Control group 2 (CG2)

	Mean	95% CI	Mean	95% CI	Mean	95% CI
Unadjusted means
Baseline	22.51	19.88 to 25.14	21.76	19.56 to 23.95	22.28	19.59 to 24.56
1 year	14.84	12.71 to 16.97	24.26	21.35 to 27.17	18.48	15.74 to 21.22

Adjusted means^a
Baseline	21.38	19.24 to 23.63	20.61	18.55 to 22.79	20.87	18.84 to 23.03
1 year	12.19	10.47 to 14.03	20.67	18.36 to 23.11	16.79	14.79 to 18.91

Adjusted means^b
Baseline	21.38	19.17 to 23.71	20.61	18.48 to 22.85	20.87	18.76 to 23.10
1 year	13.10	11.39 to 14.94	19.37	17.31 to 21.55	16.72	14.84 to 18.72

	Texp^c	P-value	Zexp^d	P-value	Zexp^e	P-value

I G vs CG1, 1 year	−5.08	<0.001	−6.00	<0.001	−4.63	0.001

IG vs CG2, 1 year	−2.02	0.046	−3.48	0.001	−2.79	0.006

IG, 0–1 year	−8.68	<0.001	−9.32	<0.001	−8.19	<0.001

CG1, 0–1 year	0.40	0.694	0.05	0.959	−0.91	0.364

CG2, 0–1 year	−2.59	0.046	−4.01	0.001	−3.81	<0.001

^a

Adjusted for covariates of multilevel model.

^b

Adjusted for covariates of multilevel model with multiple imputation data and intention-to-treat.

^c

Experimental T for unadjusted means.

^d

Experimental Z adjusted for covariates of multilevel model.

^e

Experimental Z adjusted for covariates of multilevel model with multiple imputation data and intention-to-treat.