Table 3.

Comparison of DASS-21 scores among the single-dose, the double-dose, and unvaccinated groups.

DASS-21 scores, mean (SD)	Single-dose (n = 234)	Double-dose (n = 859)	Unvaccinated (n = 478)	P⁎
Depression	4.79 (6.39)	5.25 (5.96)⁎⁎	6.44 (6.84)⁎⁎⁎	0.0005
Anxiety	4.64 (5.33)	4.93 (5.23)⁎⁎	6.36 (6.42)⁎⁎⁎	0.0002
Stress	6.91 (7.38)	7.74 (7.15)⁎⁎	9.26 (8.31)⁎⁎⁎	0.0003

Abbreviations: SD, standard deviation; DASS-21, Depression, Anxiety and Stress Scale.

Note: The vaccinated healthcare workers were divided into the single-dose group and the double-dose group.

The Student-Newman-Keuls (SNKs) test was also performed for multiple comparisons.

^⁎Indicates the Kruskal-Wallis test. P ˂ 0.05 indicates a significant difference.

^⁎⁎Indicates a significant difference between double-dose group and unvaccinated group.

^⁎⁎⁎Indicates a significant difference between single-dose group and unvaccinated group.