Table 2.

Number of subjects in different treatment conditions.

	Pre-Mandate		Post-Mandate
Count	NoMask	Mask	NoMask	Mask	$\sum$
Subject Without Mask	102	97	77	65	341
Subject With Mask	18	23	43	55	139
Accompanying Adult =0	107	105	108	109	429
Accompanying Adult =1	11	13	12	10	46
Accompanying Adult $>$1	2	2	0	1	5
Accompanying Child =0	111	112	113	116	451
Accompanying Child =1	7	7	7	4	25
Accompanying Child $>$1	2	2	0	0	4
Female Subject	61	65	65	70	261
Male Subject	59	55	55	50	219
Aged under 15	0	1	1	0	2
Aged between 15 and 25	13	19	14	15	61
Aged between 25 and 35	38	34	42	40	154
Aged between 35 and 45	35	29	33	33	130
Aged between 45 and 60	20	20	21	21	82
Aged above 60	14	17	9	11	51
Total	120	120	120	120	480

Notes: Values show the number of observations with the given characteristics for categorical variables. Age groups and gender reflect the experimenters’ impressions and are not to be interpreted as point estimates. Subjects are counted with a mask if they were wearing one at the time of measurement.