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Table 1 The characteristics of the participants

From: Psychometric evaluation of the depression, anxiety, and stress scale-21 (DASS-21) among Chinese primary and middle school teachers

Source

Cross-sectional survey

Longitudinal

survey

Data collection period

2020.5-6

2021.11

(Wave 1)

2022.01

(Wave 2)

Valid number

9030

1642

School type (Primary school); n (%)

5838 (64.65%)

1159 (70.6%)

Sex (Female); n (%)

6563 (72.7%)

1305 (79.5%)

Age; Mean (SD)

33.94 (8.81)

34.22 (8.72)

Teaching subject; n (%)

   

Chinese literature

3624 (40.13%)

638 (38.86%)

English as foreign language

1601 (17.73%)

198 (12.06%)

Mathematics

3222 (35.68%)

533 (32.46%)

Others (science, social science, music, art, physics, politics)

583 (6.46%)

273 (16.62%)

The DASS-21; n (%)

   

Probable Depression

1843 (20.41%)

368 (22.41%)

386 (23.51%)

Probable Anxiety

2388 (26.44%)

589 (35.87%)

570 (34.71%)

Probable stress

917 (10.15%)

265 (16.14%)

258 (15.71%)

Teacher Emotional Exhaustion (range:1–7); Mean (SD)

Not applicable

Not applicable

3.46 (1.51)

  1. Note. Probable is determined according to the cutoff point by Lovibond and Lovibond