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Table 3 Joinpoint regression analysis of proportions of prostate cancer cases diagnosed late in metropolitan and non-metropolitan counties.

From: Geographical, temporal and racial disparities in late-stage prostate cancer incidence across Florida: A multiscale joinpoint regression analysis

Parameter White males Black males
  Estimate CI0.025 CI0.975 Estimate CI0.025 CI0.975
  Metropolitan counties
Joinpoint       
τ1 1989 1988 1990 1988 1985 1992
τ2 2000 1999 2002 2000 1999 2002
APC       
[1981, τ1] -0.5 -1.6 0.6 0.6 -2.9 4.3
1, τ2] -9.9* -10.7 -9.2 -10.2* -12.0 -8.3
2, 2007] 2.1* 0.1 4.1 1.6 -3.6 6.9
AAPC       
1981-2007 -4.0* -4.6 -3.3 -4.3* -6.0 -2.5
  Non-metropolitan counties
Joinpoint       
τ1 1992 1989 1994 - - -
τ2 1996 1994 2003 - - -
APC       
[1981, τ1] -1.6* -2.9 -0.2 - - -
1, τ2] -12.9* -23.4 -0.8 - - -
2, 2007] -2.1 -4.3 0.1 - - -
AAPC       
1981-2007 -3.6* -5.7 -1.5 -5.1* -6.2 -3.9
  1. Results for each ethnic group include the estimated value and 95% confidence interval for three parameters: joinpoint year, annual percent change (APC) for each of the linear time segments, and average annual percent change (AAPC) computed over the entire time series. For the last two parameters, the symbol * denotes parameters significantly different from zero at α = 0.05.