Model 1 | Model 2 | |||||||
---|---|---|---|---|---|---|---|---|
Impact of baseline BMI only | Impact of baseline BMI and BMI change | |||||||
1. Probability | 2. Amount of costs if >0 | 1. Probability | 2. Amount of costs if >0 | |||||
n = 2,946 | n = 2,003 | n = 2,946 | n = 2,003 | |||||
Parameter | Odds ratio | p-value | Exp(est)a | p-value | Odds ratio | p-value | Exp(est)a | p-value |
Intercept | 0.164 | 0.055 | 37.462 | <.0001 | 0.168 | 0.058 | 33.191 | <.0001 |
Age | 0.974 | 0.449 | 0.951 | 0.018 | 0.971 | 0.399 | 0.950 | 0.008 |
Age squared | 1.001 | 0.010 | 1.001 | 0.004 | 1.001 | 0.007 | 1.001 | 0.001 |
Sex: female | 2.179 | <.0001 | 0.967 | 0.582 | 2.162 | <.0001 | 0.960 | 0.462 |
SES b,d | 0.347 | 0.112 | 0.324 | 0.045 | ||||
Lower middle class | 1.036 | 0.817 | 0.922 | 0.389 | 1.034 | 0.830 | 0.929 | 0.387 |
Middle middle class | 0.984 | 0.913 | 0.894 | 0.256 | 0.987 | 0.930 | 0.914 | 0.314 |
Upper middle class | 1.247 | 0.137 | 1.084 | 0.400 | 1.253 | 0.129 | 1.095 | 0.292 |
Upper class | 1.108 | 0.514 | 1.079 | 0.476 | 1.120 | 0.472 | 1.123 | 0.233 |
BMI c,d | <.0001 | 0.001 | <.0001 | <0.0001 | ||||
Overweight | 1.188 | 0.087 | 1.132 | 0.089 | 1.189 | 0.086 | 1.126 | 0.073 |
Moderately obese | 1.776 | <.001 | 1.431 | <.001 | 1.769 | <.001 | 1.426 | <.0001 |
Severely obese | 4.068 | <.0001 | 1.361 | 0.025 | 4.134 | <.0001 | 1.417 | 0.005 |
BMI change | – | – | – | – | 1.037 | 0.087 | 1.055 | <.0001 |
Scale | 2.718 | – | 1.839 | – | 2.718 | – | 2.099 | – |
AIC | 3228 | 14385 | 3227 | 14322 |