Table 2.

Associations between prescriptions of psychotropic medications in 2017 and HC use in 2017

Psychotropic medication. ATC code, class	Model 1			Model 2			Model 3			Model 4
	OR	95% CI	P value	OR	95% CI	P value	OR	95% CI	P value	OR	95% CI	P value
Any psychotropic medication	1.12	1.10 to 1.13	<0.0001	1.15	1.13 to 1.16	<0.0001	1.16	1.14 to 1.17	<0.0001	1.15	1.13 to 1.17	<0.0001
N05A, antipsychotics	0.95	0.93 to 0.98	0.00019	1.02	0.99 to 1.05	0.212	1.10	1.07 to 1.13	<0.0001	1.09	1.06 to 1.12	<0.0001
N05B, anxiolytics	1.10	1.07 to 1.12	<0.0001	1.14	1.12 to 1.17	<0.0001	1.16	1.14 to 1.19	<0.0001	1.16	1.14 to 1.19	<0.0001
N05C, hypnotics/sedatives	1.17	1.14 to 1.20	<0.0001	1.19	1.16 to 1.21	<0.0001	1.18	1.15 to 1.20	<0.0001	1.17	1.14 to 1.20	<0.0001
N06A, antidepressants	1.11	1.09 to 1.13	<0.0001	1.14	1.12 to 1.15	<0.0001	1.16	1.14 to 1.17	<0.0001	1.15	1.13 to 1.16	<0.0001
N06B, psychostimulants	0.98	0.92 to 1.05	0.56	1.05	0.98 to 1.13	0.142	1.08	1.00 to 1.15	0.039	1.07	1.00 to 1.15	0.057
N06C, psycholeptics and psychoanaleptics	1.30	1.20 to 1.42	<0.0001	1.31	1.20 to 1.42	<0.0001	1.27	1.17 to 1.39	<0.0001	1.26	1.16 to 1.38	<0.0001

Model 1 is the unadjusted model; Model 2 is Model 1 adjusted for age group, education and marital status; Model 3 is Model 2 adjusted for socioeconomic status and income level; Model 4 is Model 3 adjusted for recent pregnancy (in 2017), abortion (in 2016–2017) and sterilisation (before 2017).

ATC, Anatomical Therapeutic Chemical; HC, hormonal contraception.