Table 4

Mean LAP scores estimated from GEE model that adjusted the standard errors for clustering by GP and Assessor and small sample bias. GP and intervention were entered into the model as an interaction term.

Variable

Mean difference in LAP score

95%CI

p-value


Assessor One

ref

Assessor Two

2.3

-1.7–6.0

0.220

After vs. before intervention

GP2

1.9

-7.1–10.9

0.679

GP 3

2.7

1.2–4.2

<0.001

GP 4

4.6

-3.6–12.8

0.272

GP 5

3.8

3.4–4.2

<0.001

GP 6

-3.1

-5.3–-0.8

0.008


Data from GP 1 was excluded from this intervention model.

Jiwa et al. BMC Medical Research Methodology 2009 9:54   doi:10.1186/1471-2288-9-54

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