Overall reduced lymphocyte especially T and B subsets closely related to the poor prognosis and the disease severity in severe patients with COVID-19 and diabetes mellitus

Table 1 Comparison of the baseline conditions among the three groups(n = 150)

Variable	Control group (n = 55)	COVID group (n = 95)			χ² or F score	P score
Variable	Control group (n = 55)	Total (n = 95)	Non-DM subgroup (n = 76)	DM subgroup (n = 19)	χ² or F score	P score
Age (year)	55.54 ± 7.79	49.13 ± 17.13**	46.75 ± 17.16***	60.22 ± 11.88^##	F = 6.272	0.0004
Male (case, %)	25 (45.45)	46 (48.42)	36 (47.37)	10 (52.63)	χ² = 0.290	0.865

DM, diabetes mellitus; non-DM, without diabetes mellitus. Unpaired one-way ANOVA was used for intergroup comparisons of age. Chi-square test was used for comparisons of gender. Unpaired t-test was used for comparisons of age between the control group and the COVID-19 group, COVID-19 non-DM subgroup and COVID-19 DM subgroup, **P < 0.001, ***P < 0.001. Unpaired t-test was used for comparisons of age between the latter two subgroups, ^##P < 0.01

ISSN: 1758-5996