Table 5. Relationships between mean CCI scores and age or treatment options.

Variable	n	Mean CCI	p-value
Age
≤50 years	356	0.8 ± 0.9	0.00001*
≥51 years	492	3.3 ± 1.2
Chemotherapy
No	161	2.5 ± 1.9	0.05*
Yes	687	2.2 ± 1.6
Surgery
No	468	2.4 ± 1.7	0.01*
Yes	380	2.1 ± 1.5
Radiotherapy
No	516	2.2 ± 1.6	0.52
Yes	332	2.3 ± 1.6

^*Significant p-values