International Scholarly Research Notices

Clinical Study

Survival Prediction Score: A Simple but Age-Dependent Method Predicting Prognosis in Patients Undergoing Palliative Radiotherapy

Patient characteristics.


Characteristic	Number	%

Entire cohort	579
Age (years)
<60	96	16.6
≥60	483	83.4
Gender
Male	356	61.5
Female	223	38.5
Karnofsky performance status¹
90–100	75	13.0
70–80	160	27.6
≤60	343	59.2
Primary tumor site
Prostate	145	25.0
Breast	67	11.6
Lung (small cell)	31	5.4
Lung (nonsmall cell)	105	18.1
Colorectal	37	6.4
Pancreas	9	1.6
Bladder	32	5.5
Other	153	26.4
Number of RT fractions
1–4	114	19.7
5–9	140	24.2
10	210	36.3
11–15	90	15.5
>15	25	4.3
Dose per fraction (Gy)
<3	60	10.4
3	262	45.3
3.1–3.9	16	2.8
4	125	21.6
4.1–5	26	4.5
>5	90	15.5
Selected target types
Bone metastases	314	54.2
Brain metastases	68	11.7
Lymph node metastases	34	5.9
Brain metastases¹
No	483	83.4
Yes	92	15.9
Liver metastases¹
No	459	79.3
Yes	116	20.0
Lung metastases¹
No	451	77.9
Yes	124	21.4
Adrenal gland metastases¹
No	518	89.5
Yes	57	9.8
Bone metastases¹
No	194	33.5
Yes	381	65.8
Systemic cancer treatment¹
No	256	44.2
Within 4 weeks before RT	118	20.4
Within 3 months before RT	69	11.9
Earlier	79	13.6

RT: Radiotherapy.
Missing information in some cases.