The epidemiology of hospital treated traumatic brain injury in Scotland

BMC Neurology

Table 2 Trends in age standardised annual rates of hospitalisation episodes, of TBI by gender, Scotland, 1998 - 2009

Group	Number of joinpoints	P value ¹	Time period	APC²	95% CI³
Men	2 joinpoints	0.0091	1998-2002	0.6	4.2 to 5.7
			2002-2005	−7.9	−21.9 to 8.6
			2005- 2009	1.6	−3.6 to 7.1
Women	2 joinpoints	0.001	1998-2001	4.2	0.9 to 7.5
			2001-2004	−5.9	−11.6 to 0.1
			2004 - 2009	1.0	−0.4 to 2.5

¹The p value relates to likelihood of that number of joinpoints compared to the null hypothesis of zero expected joinpoints.
²Annual Percentage Change.
³95% Confidence Interval for the APC estimates.

ISSN: 1471-2377