Table 1.

General characteristics of participants, Shenzhen, China, April 2020.

General characteristics	Total ( n = 8,248)		95% CI
	N	%
Gender
Male	892	10.8	10.2–11.5
Female	7,356	89.2	88.5–89.8
Age group (y)
≤30	4,379	53.1	52.0–54.2
31–40	2,371	28.7	27.8–29.7
41–50	1,192	14.5	13.7–15.2
>50	306	3.7	3.3–4.1
Education level
Junior high school or lower	1,458	17.7	16.9–18.5
High school	2,723	33.0	32.0–34.0
Bachelor's degree	3,358	40.7	39.7–41.8
Master's degree or above	709	8.6	8.0–9.2
Education worksite
Kindergarten	4,252	51.6	50.5–52.6
Primary school	2,644	32.1	31.0–33.1
Secondary school	1,352	16.4	15.6–17.2
Years of teaching
≤2	2,291	27.8	26.8–28.8
3–5	2,286	27.7	26.8–28.7
6–10	1,918	23.3	22.3–24.2
>10	1,753	21.3	20.4–22.2