Table 6. Five-year survival rates by selected variables.

Variable, Frequency(N)	2-year survival rate (%)	5-year survival rate (%)
Age (years), N = 378 <40 >40	53.3 57.1	35.6 38.0
Stage at presentation, N = 353 Early (0–II) Late (III–IV)	68.7 50.8	58.3 28.2
Stage of presentation, N = 353 Stage 0 Stage I Stage II Stage III Stage IV	100.0 80.0 67.7 51.4 37.9	100.0 66.7 57.6 27.9 13.8
Duration of illness, N = 352 <12 months >12 months	57.4 55.2	39.0 36.7