Postoperative cure in Iranian patients with gastric cancer: estimating the crude conditional probability in a relative survival setting in the presence of competing risks

Figure 1

Figure 2. A

Statistical crude ratios of patients who died from causes other than gastric cancer estimated using the flexible parametric cure model in the presence of competing risks by stage and age at diagnosis and sex

Stage at	Age at diagnosis	Ratio (95% CI)
diagnosis	(years)	Men	Women
I and II	50	0.69 (0.46, 0.84)	0.63 (0.28, 0.80)
	60	0.48 (0.31, 0.63)	0.45 (0.24, 0.64)
	70	0.40 (0.18, 0.61)	0.25 (0.08, 0.45)
	80	0.08 (0.02, 0.26)	0.05 (0.01, 0.27)
III	50	0.49 (0.25, 0.69)	0.20 (0.01, 0.54)
	60	0.45 (0.24, 0.64)	0.17 (0.08, 0.29)
	70	0.28 (0.14, 0.43)	0.11 (0.04, 0.25)
	80	0.07 (0.01, 0.17)	0.06 (0.01, 0.25)
IV	50	0.32 (0.19, 0.45)	0.27 (0.13, 0.42)
	60	0.22 (0.14, 0.31)	0.12 (0.03, 0.28)
	70	0.14 (0.08, 0.22)	0.10 (0.02, 0.19)
	80	0.04 (0.01, 0.14)	0.03 (0.01, 0.16)

Characteristics of the patients with gastric cancer (1993–2000)

Characteristics	No. (%)	No. of deaths (%)†	Percentage of deaths
Total	326	235	72.1
Stage at diagnosis
I	22 (6.7)	13 (5.5)	59.1
II	60 (18.4)	35 (14.9)	58.3
III	53 (16.3)	37 (15.8)	69.8
IV	191 (58.6)	150 (63.8)	78.5
Age at diagnosis (years)
<61	87 (26.7)	52 (22.1)	59.7
61–70	122 (37.4)	83 (35.3)	68.0
>70	117 (35.9)	100 (42.6)	85.5
Year of diagnosis
Before 1996	76 (23.3)	55 (23.4)	72.4
1996–1997	109 (33.4)	81 (34.5)	74.3
After 1997	141 (43.3)	99 (42.1)	70.2
Sex
Male	224 (68.7)	155 (65.9)	69.2
Female	102 (31.3)	80 (34.1)	78.4