Table 2.

The impact of lockdown policies on public mental health.

State	Date	Intercept	P value	Timea	P value	Policyb	P value	Time*policyc	P value	F statistic	P value
Michigan	March 24, 2020	0.0528	<.001	–0.0021	.003	–0.0214	.17	0.002	.03	4.669	.009
North Carolina	March 30, 2020	0.0461	<.001	–0.0015	.04	–0.0228	.16	0.0017	.08	2.509	.08
Ohio	March 23, 2020	0.0429	<.001	–0.0013	.03	–0.0117	.39	0.0012	.14	2.078	.13
Pennsylvania	April 1, 2020	0.0254	<.001	0.0002	.63	0.0288	.007	–0.0012	.04	3.033	.046

^aTime: a continuous variable encoding the number of days in the research period (15 days before and after lockdown).

^bPolicy: a binary variable, encoded as 0 before the lockdown policy and 1 after the policy.

^cTime*policy: the interaction term of time and policy.