Table 3.

Associations between low and high WHtR at different time points

	Adolescence (wave 3)										Adulthood (wave 4)
	WHtR <0.4					WHtR ≥0.5					WHtR <0.4					WHtR ≥0.5
	%	OR (95% CI)	P value	OR for sex	P value for sex	%	OR (95% CI)	P value	OR for sex	P value for sex	%	OR (95% CI)	P value	OR for sex	P value for sex	%	OR (95% CI)	P value	OR for sex	P value for sex
Childhood (wave 2)
WHtR <0.4	44.7	8.5 (3.6 to 20.2)	<0.0001	3.7 (1.8–7.7)	0.0005*	2.6	0.05 (0.006 to 0.3)	0.003	0.4 (0.2–0.7)	0.0009*	23.7	4.7 (1.8 to 12.5)	0.002	4.2 (1.7–10.4)	0.002*	21.1	0.2 (0.09 to 0.5)	0.0003	0.3 (0.2–0.5)	<0.0001
WHtR ≥0.5	0.0	–	–	–	–	71.1	8.3 (3.8 to 18.3)	<0.0001	0.5 (0.2–0.7)	0.003	0.0	–	–	–	–	94.7	25.0 (5.8 to 108.1)	<0.0001	0.3 (0.2–0.6)	<0.0001*
Adolescence (wave 4)
WHtR <0.4	–	–	–	–	–	–	–	–	–	–	45.1	21.3 (8.0 to 56.7)	<0.0001	2.0 (0.7–5.4)	0.2	9.8	0.1 (0.04 to 0.3)	<0.0001	0.5 (0.2–0.7)	0.0004
WHtR ≥0.5	–	–	–	–	–	–	–	–	–	–	0.0	–	–	–	–	85.1	10.3 (5.3 to 20.1)	<0.0001	0.4 (0.2–0.7)	0.001

Tracking of waist-to-height ratio (WHtR) from childhood and adolescence to adolescence and adulthood. OR adjusted for age (years) at earlier follow-up, time (years) between follow-ups and sex. OR for sex modelled as men versus women. % indicates per cent of participants in WHtR at later follow-up.

*Indicates that IRSEO category was a significant confounder.

IRSEO, Indigenous Relative Socioeconomic Outcomes.