Table 4

Wald tests for fixed effects (N = 12,663)

Fixed term
Wald statistic
d.f.
Wald/df.
χ2 prob.

Sequentially adding terms to fixed model
Mobility
9772.4
2
4886.2
<0.001
Self care
2070.1
2
1035.1
<0.001
Usual activities
426.1
2
213.0
<0.001
Pain/discomfort
2338.0
2
1169.0
<0.001
Anxiety/depression
544.7
2
272.3
<0.001

Dropping individual terms from full fixed model
Mobility
544.7
2
272.4
<0.001
Self care
674.0
2
337.0
<0.001
Usual activities
253.2
2
126.6
<0.001
Pain/discomfort
1789.0
2
894.5
<0.001
Anxiety/depression
544.7
2
272.3
<0.001

Jelsma et al. Population Health Metrics 2003 1:11   doi:10.1186/1478-7954-1-11