Table 5.

Multinomial mixed-effect models for the effect of chronic disease status on contraceptive use for Australian women, aged 18 to 28 across three time points (2013, 2015 and 2017)

Model	Chronic disease status	Condom OR (95% CI)	Pill and condom OR (95% CI)	aLARC and condom OR (95% CI)	Other and condom OR (95% CI)	None OR (95% CI)
1	Any physical chronic disease	0.90 (0.80, 1.02)	1.23 (1.02, 1.48)	1.14 (1.00, 1.29)	1.29 (1.07, 1.57)	0.92 (0.82, 1.02)
2	Cardiac disease	1.36 (0.97, 1.91)	1.39 (1.03, 1.89)	1.53 (0.92, 2.55)	2.20 (1.34, 3.59)	1.54 (1.10, 2.16)
3	Diabetes	0.86 (0.66, 1.12)	1.10 (0.73, 1.67)	1.06 (0.80, 1.41)	1.18 (0.78, 1.79)	0.95 (0.75, 1.21)
4	Asthma	0.89 (0.78, 1.02)	1.15 (0.93, 1.41)	1.04 (0.90, 1.20)	1.22 (0.98, 1.51)	0.88 (0.78, 1.00)
5	Autoinflammatory disease	0.90 (0.67, 1.19)	1.38 (1.09, 1.75)	1.58 (1.04, 2.41)	1.69 (1.11, 2.57)	1.03 (0.77, 1.38)

Reference latent status = Status 4 (“Pill”); reference level for chronic disease status = disease not present

Each model controlled for age, country of birth, area of residence, highest educational qualification, work status, managing on available income, smoking status, alcohol consumption, body mass index, psychological distress, history of pregnancy, history of termination, history of miscarriages, menstrual symptoms, history of polycystic ovary syndrome, history of endometriosis, and survey wave

^aLARC refers to the use of hormonal long-acting reversible contraception (progestogen-only implant and the progestogen IUD). Copper IUD is included as part of “other” contraception