Table 2.

Comparison of study participants and the WA population by age group

Age group (years)	Study	WA population*	P value
<5	147 (48.7)	161 727 (31.9)	p<0.001
5–9	87 (28.8)	164 153 (32.4)
10–14	52 (17.2)	150 806 (29.8)
15†	16 (5.3)	29 934 (5.9)
Total	302	506 620

Values are n (%).

*WA population data from the 2016 Australian census.¹⁹

†Children aged 16 years and above were excluded from the study.

WA, Western Australia.