. 2021 Aug 31;16(8):e0256932. doi: 10.1371/journal.pone.0256932

Table 3. Comparison of depressive symptoms levels between frontline and non-frontline healthcare providers.

Groups	N	Desc mean^a	(SD)^b	EMM^c (95% CI^d)	Mean diff^e (95% CI^d)	F stat^f (df^g)	P value^h
Frontline	160	6.84	(2.98)	6.61 (6.04; 7.17)	−0.75 (−1.45; −0.05)	4.44 (1)	0.036
Non-frontline	146	7.53	(2.95)	7.35 (6.83; 7.88)

^a Descriptive mean

^b Standard deviation

^c Estimated marginal mean = mean after adjusting covariates

^d Confidence interval

^e Mean difference

^f F statistic

^g Degree of freedom

^h Analysis of covariance. Adjusted for gender, duration of employment and social support.