Table 2. Prevalence of social distancing, symptoms, and covid-19 during the five-month follow-up (197 observations) by group in Limeira, SP, Brazil.

Variable	Chemically exposed		Control		Total		p-value
	n = 86	43.6%	n = 111	56.4%	n = 197	100%
Presence of covid-19 symptoms							0.098
Yes	36	41.86%	33	29.73%	69	35.03%
No	50	58.14%	78	70.27%	128	64.97%
Adherence to social distancing							0.018
Yes	73	84.88%	78	70.27%	151	76.65%
No	13	15.12%	33	29.73%	46	23.35%
Days away from home per week							< 0.0001
≤ 4 days	77	89.53%	67	60.53%	144	73.10%
> 4 days	9	10.47%	44	39.64%	53	26.90%
Hours spent away from home when going out							< 0.0001
≤ 4 hours	76	88.37%	73	65.77%	149	75.63%
> 4 hours	10	11.63%	38	34.23%	48	24.37%
Use of public transportation
Bus (n = 17)	2	11.76%	15	88.24%	17	100%	0.005
Car via transport apps (n = 44)	23	52.27%	21	47.73%	44	100%	0.228
Taxi (n = 8)	3	37.50%	5	62.50%	8	100%	1.000
Serology test (n = 32)							0.139
Positive (n = 11)	2	18.18%	9	81.82%	11	100%
Negative (n = 21)	10	45.45%	11	54.38%	22	100%