Human papillomavirus prevalence among indigenous and non-indigenous Australian women prior to a national HPV vaccination program

Table 1 Demographic characteristics of WHINURS^a participants aged ≤40 years, by Indigenous status^b

Variable	Non-Indigenous		Indigenous
	n	%	n	%
Participants	1494		655
Age, years
15 to 20	139	9.3%	117	17.9%
21 to 25	359	24.0%	178	27.2%
26 to 30	383	25.6%	137	20.9%
31 to 35	341	22.8%	124	18.9%
36 to 40	272	18.2%	99	15.1%
Median	29		27
Mean^c	28.9		27.4
Hormonal contraception user^c,d	643	43.3%	196	30.3%
Smoker^c,e	368	24.8%	363	56.2%
Pregnant^c,f	13	0.9%	54	8.2%
Remoteness^g
Major cities	868	58.1%	45	6.9%
Inner regional	182	12.2%	65	9.9%
Outer regional	351	23.5%	215	32.8%
Remote	78	5.2%	135	20.6%
Very remote	15	1.0%	195	29.8%
Most recent Pap-test result^b
Normal	1143	81.2%	453	77.3%
Low-grade abnormality	116	8.2%	44	7.5%
High-grade abnormality	5	0.4%	7	1.2%
First Pap	144	10.2%	82	14.0%
Unknown/missing/unsatisfactory	19/45/22		21/42/6
Current Pap-test result^b,f
Normal	1296	88.0%	527	84.7%
Low-grade abnormality	156	10.6%	70	11.3%
High-grade abnormality^b	20	1.4%	25	4.0%
Unsatisfactory	20		7

^aWomen's HPV Indigenous Non-Indigenous Urban Rural Study
^bThree participants with unknown Indigenous status are not included in this table
^b P < 0.001 for group Indigenous women versus non-Indigenous women.
^cData missing for ten non-Indigenous and eight Indigenous participants.
^dData missing for ten non-Indigenous and nine Indigenous participants.
^eData missing for eight non-Indigenous and six Indigenous participants.
^fData missing for two non-Indigenous and twenty-six Indigenous participants.
^gRemote residence refers to residence in an area categorized as remote or very remote using the Accessibility/Remoteness Index of Australia classification by postcode. Non-remote residence refers to areas categorized as major cities or regional areas.