Table 1 Potential prognostic factors considered for inclusion within the prognostic model
Potential prognostic factor | Description | Type |
|---|---|---|
Age | Age derived at trial registration | Continuous |
WHO PS | World Health Organisation Performance Status, a measure of the patient’s ability to do daily tasks | Ordinal range from 0 (alive and fully active) to 5 (dead) |
LDH | Lactate dehydrogenase level in the blood, a measure of tissue damage | Continuous |
CRP | C-reactive protein level in the blood, a measure of inflammation | Continuous |
L:W | Lymphocyte count to total white blood cell count ratio | Continuous |
ISS | International Staging System, a measure of the severity of disease in multiple myeloma calculated dependent on the levels of β2-microglobulm and albumin in the blood | Ordinal range from stage I to stage III |