Age, period and cohort analysis of patient dental visits in Australia

Table 3 R-squared and P-values from goodness-of-fit tests from general linear regression analyses

Models	Number	Degrees of freedom	R squared	F value	P > F
Age	2776	13	0.039	8.6	<0.0001
Age-drift	2776	14	0.099	21.6	<0.0001
Age-period	2776	18	0.102	17.4	<0.0001
Age-cohort	2776	29	0.111	11.8	<0.0001
Age-period-cohort	2776	33	0.115	10.8	<0.0001

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