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. Author manuscript; available in PMC: 2016 Jun 15.
Published in final edited form as: Cancer. 2015 Feb 27;121(12):1993–2003. doi: 10.1002/cncr.29301

Table 2.

Standardized Mortality Ratio (SMR) analysis by age and sex was used to compare disease incidence in the areas of CTCL geographic clustering. MDACC database results were used for this analysis. Data presented as folds higher than the Houston metropolitan incidence rate (6.4 cases per million per year).

Standardized Mortality Ratio Analysis
Age standardization Rate ratio: Observed/Expected=SMR 95% CI of SMR
Houston Memorial Area (77024) 16/2.9 = 5.5 3.2 9.0
KATY 24/0.8 = 31.2 20.0 46.4
SPRING 40/2.2 = 18.0 12.9 24.5
Age-Sex standardization Sex Rate ratio: Observed/Expected=SMR
Houston Memorial Area (77024) Male 11/1.1 = 10.0 5.0 17.8
Female 5/1.26 = 4.0 1.3 9.3
KATY Male 12/0.34 = 34.9 18.0 60.9
Female 12/0.41 = 29.6 15.3 51.7
SPRING Male 16/1.03 = 15.5 8.9 25.2
Female 24/1.29 = 18.6 11.9 27.7