Fig. 8

Comparison of T lymphocyte levels and percentages among the four subgroups. DM, diabetes mellitus; non-DM, without diabetes mellitus; COVID-19, coronavirus disease 2019. a CD3+ Cell count. b CD3+ Cell percentage. c CD3+ CD4+ cell count. d CD3+ CD4+ cell percentage. e CD3+ CD8 + cell count. f CD3+ CD8 + cell percentage. g Ratio of CD4 + /CD8 + cells. Unpaired two-way ANOVA was used for interaction comparisons (b P < 0.05; a, c–g, P all > 0.05). Unpaired one-way ANOVA was used for intergroup comparisons (a, d, P all < 0.01; c P < 0.001; b, e–g, P all > 0.05).Unpaired t-tests was used for comparisons with the non-severe non-DM subgroup, *P < 0.05, **P < 0.01, ***P < 0.001. Unpaired t-tests was used for comparisons with the severe non-DM subgroup, #P < 0.05, ##P < 0.01