Table 4.

Analysis of factors associated with functional outcome and survival

		Functional group comparison				Cox proportional hazards analysis
		Total (n = 100)	Good (n = 79)	Poor (n = 21)	P‐value	Median survival (95% CI)	Hazard ratio‡ (95% CI)	P‐value
Tokuhashi score	0–8	68	47	21	<0.001*	9.4 (4.0–14.8)	1.00	0.007
	9–11	22	22	0		26.4 (15.2–37.6)	0.37 (0.19–0.70)
	12–15	10	10	0		49.8 (0.0–101.6)	0.34 (0.08–1.44)
Tomita score	2–3	22	22	0	0.003*	49.8 (38.8–60.7)	1.00	0.037
	4–5	14	12	2		20.0 (NA)	0.84 (0.28–2.57)
	6–7	25	18	7		11.3 (4.6–17.9)	1.74 (0.66–4.58)
	8–10	37	25	12		8.5 (0.0–17.7)	2.51 (1.01–0.37)
Systemic option	No	28	14	14	<0.001†	3.7 (2.5–4.8)	1.00	0.001
	Yes	72	65	7		21.6 (17.9–25.4)	0.22 (0.13–0.37)
Radiotherapy option	No	44	30	14	0.019†	12.9 (4.2–21.6)	1.00	0.778
	Yes	56	49	7		18.6 (11.8–25.5)	0.93 (0.56–1.53)

CI, confidence interval; NA, not applicable

^* P‐value derived from χ²‐test for trend.

^† P‐value derived from Pearson's χ²‐test.

^‡ Adjusted hazard ratio and P‐value are derived from multivariate analysis of the Cox proportional hazards model.