Psychological impact of the COVID-19 pandemic on Chinese population: An online survey

Table 3 Prevalence of post-traumatic stress symptoms according to participant demographics

Characteristics	Frequency (%) (n = 1082)
	Range	mean ± SD	t	P value
Prevalence
IES-R < 20		24 ± 2.2
IES-R > 20		1058 ± 97.8
Gender			0.71	0.48
Male	18-88	42.78 ± 12.48
Female	18-87	42.25 ± 11.87
Ethnicity			0.63	0.53
Han	18-88	42.64 ± 11.91
Others	18-87	42.14 ± 12.59
Residence			1.37	0.17
Rural	19-87	43.11 ± 12.52
Urban	18-88	42.08 ± 11.87
Age (yr)			9.81	0.001a
< 30	18-85	40.70 ± 12.69
31-39	21-88	43.08 ± 11.99
40-49	18-87	42.52 ± 11.19
50-59	20-74	47.56 ± 9.36
> 60	26-62	47.82 ± 11.78
Education			2.1	0.06
Illiterate	34-34	34
Primary	31-62	44.75 ± 8.84
Middle	20-87	44.59 ± 12.19
Bachelor	18-88	42.34 ± 12.23
Master	18-85	42.28 ± 11.86
PhD	21-84	40.02 ± 11.63
Profession			4.63	0.001a
Farmer	21-87	46.25 ± 11.83
Teacher	19-82	44.41 ± 10.68
Doctor	18-74	40.42 ± 12.92
Government	22-87	46.51 ± 12.02
Private	28-87	46.00 ± 12.02
Student	18-85	40.83 ± 12.62
Business	18-59	39.00 ± 12.67
Others	18-88	42.31 ± 11.48
Marital status			5.25	0.005a
Married	18-88	43.42 ± 11.63
Divorced	24-63	45.76 ± 11.51
Single	18-85	41.23 ± 12.62
Monthly income (RMB)			6.29	0.001a
< 3000	18-88	41.47 ± 12.64
3001-5000	19-87	44.26 ± 11.34
5001-10000	20-87	43.99 ± 11.48
> 10000	18-78	39.47 ± 12.04

^aP < 0.05.

IES-R: Impact of Event-Scale-Revised.