Characteristics and Patterns of Metastatic Disease from Chordoma

Table 2

Survival distribution stratified by presence of metastatic disease.

(a) Case processing summary of patients included in analysis

Metastasis	Total	of events	Censored
				Percent
No	150	63	87	58.0%
Yes	27	22	5	18.5%
Overall	177	85	92	52.0%

(b) Overall statistical comparison and test of equality of survival distributions

	Chi-Square	df	Sig.
Log rank (Mantel-Cox)	3.682	1	0.055

(c) Means and medians for survival time. Estimation is limited to the largest survival time if it is censored

Metastasis	Mean					Median
			95% Conf. interval					95% Conf. interval
	Estimate	Std. error	Lower bound	Upper bound		Estimate	Std. error	Lower bound	Upper bound
No	188.5	13.9	161.3	215.6		159.3	18.1	123.9	194.6
Yes	134.2	20.6	93.8	174.6		130.4	9.7	111.4	149.5
Overall	177.8	12.5	153.3	202.2		140.5	12.7	115.7	165.3