. 2021 Feb 3;16(2):e0245868. doi: 10.1371/journal.pone.0245868

Table 4. Comparison of symptomatic and asymptomatic groups for anxiety.

Variable	Total sample (N = 3000)					Asymptomatic Anxiety				Symptomatic Anxiety
Variable	M	(SD)	Md	95% CI	p(1)	f	(%)	M	p(2)	f	(%)	M	p(3)	p(4)
Sex
Female	13.3	(8.6)	12	13.0–13.6	0.001⁺	1445	(48.2)	8.3	0.420⁺	1048	(34.9)	20.1	0.213⁺	0.001^*
Male	9.7	(8.5)	8	8.9–10.4	0.001⁺	368	(12.3)	6.1	0.420⁺	139	(4.6)	19.3	0.213⁺	0.001^*
Children
No children	14.3	(9.1)	14	13.9–14.8	0.001⁺	747	(24.9)	8.5	0.001⁺	675	(22.5)	20.7	0.001⁺	0.001^*
≤16 years old	12.2	(8)	12	11.7–12.8		537	(17.9)	8.2		309	(10.3)	19.3
>16 years old	10	(7.9)	8	9.5–10.6		529	(17.6)	6.7		203	(6.8)	18.6
Occupation
Employed	13.3	(8.5)	12	11.9–12.7	0.001⁺	877	(29.2)	7.8	0.292⁺	525	(17.5)	19.8	0.001⁺	0.001^*
Autonomous	11.7	(8)	10	11.2–12.3		563	(18.8)	8.1		288	(9.6)	18.9
Unemployed	15.3	(9.6)	14	14.2–16.4		125	(4.2)	8.1		153	(5.1)	21.1
Retired	9.9	(7.5)	8	8.7–11.0		127	(4.2)	7.0		47	(1.6)	17.5
Student	16.5	(9.7)	16	15.4–17.6		121	(4.0)	8.5		174	(5.8)	22.1
Chronic disease
Yes	14.2	(9.1)	14	13.5–14.8	0.001⁺	400	(13.3)	8.1	0.492⁺	378	(12.6)	20.5	0.142⁺	0.001^*
No	12.2	(8.5)	12	11.8–12.5	0.001⁺	1413	(47.1)	7.8	0.492⁺	809	(27.0)	19.7	0.142⁺	0.001^*
Close contact with infected people
Yes	14.6	(9.4)	12	13.8–15.4	0.001⁺	246	(8.2)	8.2	0.204⁺	256	(8.5)	20.8	0.192⁺	0.001^*
No	12.3	(8.5)	12	12.0–12.6	0.001⁺	1567	(52.2)	7.8	0.204⁺	931	(31.0)	19.8	0.192⁺	0.001^*
Diagnostic of Covid-19
Yes	16.2	(9.9)	14	14.0–18.3	0.001⁺	31	(1.0)	7.4	0.756⁺	56	(1.9)	21	0.401⁺	0.001^*
No	12.6	(8.6)	12	12.3–12.9	0.001⁺	1782	(59.4)	7.9	0.756⁺	1131	(37.7)	19.9	0.401⁺	0.001^*

M = mean, Md = median, SD = standard deviation, f = frequency, CI = confidence interval.

⁺p(1), p(2), p(3) values from Mann-Whitney/Kruskall-Wallis.

*p(4) values from chi-squared test.