Table 3. Physician–patient ECOG PS disagreement and risk of mortality stratified by age, cancer type and sex.

Stratification variable	Physician ECOG score	n	Physician rates PS better than patient HR (95% CI)a	Physician rates PS worse than patient HR (95% CI)
Age⩽60 years (n=707)	0	439	2.71 (1.29–3.67)	NAb
	1	213	1.60 (0.93–2.76)	0.83 (0.56–1.22)
	2+	55	0.96 (0.44–2.10)	0.66 (0.31–1.42)
Age>60 years (n=711)	0	317	1.57 (1.08–2.28)	NAb
	1	287	0.88 (0.61–1.28)	0.83 (0.56–1.22)
	2+	107	1.33 (0.76–2.33)	0.74 (0.45–1.20)
Non-aggressive cancer (n=864)	0	500	2.58 (1.75–3.78)	NAb
	1	276	1.33 (0.84–2.12)	0.59 (0.37–0.93)
	2+	88	2.02 (1.05–3.87))	0.71 (0.41–1.23)
Aggressive cancer (n=554)	0	256	1.14 (0.71–1.83)	NAb
	1	224	0.80 (0.54–1.19)	0.97 (0.61–1.62)
	2+	74	0.80 (0.58–3.55)	0.82 (0.45–1.49)
Female sex (n=587)	0	325	1.32 (0.81–2.15)	NAb
	1	202	1.35 (0.81–2.26)	0.83 (0.46–1.50)
	2+	60	1.09 (0.56–2.13)	0.44 (0.21–0.92)
Male sex (n=831)	0	431	2.23 (1.52–3.28)	NAb
	1	298	0.87 (0.59–1.30)	0.66 (0.44–0.99)
	2+	102	1.23 (0.65–2.33)	0.98 (0.58–1.65)

Abbreviations: CI=confidence interval; ECOG=Eastern Cooperative Oncology Group; HR=hazard ratio; NA=not available; PS=performance status.

^aHazard ratio and 95% CIs calculated by Cox-proportional hazards models; models adjusted for sex, age, physician-assigned PS and cancer type.

^bModels did not run due to an empty cell in this category.