Table 1 Test of nonlinearity for the continuous covariates
From: Semiparametric modelling of diabetic retinopathy among people with type II diabetes mellitus
Nonlinearity test | Models | Resid.Df | Resid.Dev | Df | Deviance | \(pr(>chi)\) |
|---|---|---|---|---|---|---|
\(HbA1c\times FBG\) | \(M_2\) | 158.20 | 113.21 | Â | Â | Â |
\(M_2\text{ vs } M_1\) | \(M_1\) | 153.43 | 99.62 | 4.77 | 13.59 | \(0.0157^*\) |
Age by gender | \(M_3\) | 158.99 | 111.61 | Â | Â | Â |
\(M_3\text{ vs } M_1\) | \(M_1\) | 153.43 | 99.62 | 5.53 | 11.98 | \(0.0461^*\) |
CL by gender | \(M_4\) | 168.56 | 136.83 | Â | Â | Â |
\(M_4\text{ vs } M_1\) | \(M_1\) | 153.43 | 99.62 | 15.13 | 37.20 | \(0.0012^*\) |
DD | \(M_5\) | 158.41 | 112.64 | Â | Â | Â |
\(M_5\text{ vs } M_1\) | \(M_1\) | 153.43 | 99.62 | 4.97 | 13.02 | \(0.0228^*\) |