Table 1 Age specific average annual percentage change (AAPC) of cervical cancer incidence in Hong Kong, 1972–2001.

Age (years)	Linear model		Model with a quadratic trend term
	AAPC for 1972–2001 (%)	p value	Sign of the second order term	p Value
25–29	−3.54	0.001	−	0.51
30–34	−4.10	<0.001	+	0.68
35–39	−3.99	<0.001	−	0.87
40–44	−4.32	<0.001	−	0.36
45–49	−4.75	<0.001	−	0.14
50–54	−4.34	<0.001	−	0.84
55–59	−4.65	<0.001	−	0.001
60–64	−4.16	<0.001	−	<0.001
65–69	−2.99	<0.001	−	0.18
70–74	−2.23	<0.001	−	0.001
75–79	−1.20	0.02	+	0.15
80–84	0.001	0.90	−	0.06
85+	−2.12	0.01	+	0.38
25–84	−4.20	<0.001	−	0.46
Age standardised	−3.95	<0.001	−	0.01