Table V.

The mean survival months of patients according to the ALK fusion detection methods and their results.

			95% confidence interval
Patient group	Mean	Standard error	Lower bound	Upper bound
1	30.172	3.713	22.896	37.449
2	40.718	3.446	33.963	47.473
3	34.412	2.020	30.452	38.372
4	56.962	1.270	54.472	59.451

The patients were categorized into four groups as follows: 1, ALK FISH/ALK IHC (+/+) (n=27); 2, ALK FISH/ALK IHC (+/-) (n=12); 3, ALK FISH/ALK IHC (−/+) (n=47); 4, Both ALK FISH/ALK IHC (−/-) (n=227). ALK, anaplastic lymphoma kinase; FISH, fluorescence in situ hybridization; IHC, immunohistochemistry.