Table 2.

Prevalence of poor mental health, moderate-to-severe anxiety symptoms, moderate-to-severe depressive symptoms, and poor mental wellbeing in the overall population and by physical activity level.

Population	Poor mental health			Moderate-to-severe anxiety symptoms			Moderate-to-severe depressive symptoms			Poor mental wellbeing
	Prevalence	Effect sizea	P-valueb	Prevalence	Effect sizea	P-valueb	Prevalence	Effect sizea	P-valueb	Prevalence	Effect sizea	P-valueb
Overall	35.8	–	–	30.7	–	–	18.8	–	–	9.9	–	–
Moderate-to-vigorous physical activity per day
0–30 min	47.0	0.18	<0.001	41.2	0.18	<0.001	28.2	0.18	<0.001	14.8	0.13	<0.001
>30–90 min	32.1			27.4			14.1			8.3
>90 min	26.8			22.0			12.9			5.8

Participants were considered to have poor mental health if they displayed moderate-to-severe anxiety symptoms, moderate-to-severe depressive symptoms and/or poor mental wellbeing. Oderate-to-vigorous physical activity per day was self-reported and was used as a three-category variable (0–30, >30–90 and > 90 min).

^aEffect size was calculated using Cramer's V.

^bP-values were based on chi-squared tests.