Table 2 Network meta-analysis of lymphocyte subsets levels in COVID-19 patients with different clinical stages MD (95%CI)

Severe VS. Mild ^a

−389.02 (− 549.59, − 228.45)

−198.74 (− 262.12, −135.35)

−127.49 (− 173.75, − 81.24)

− 134.32 (− 203.92, − 64.71)

− 23.27 (− 55.79, 9.25)

Critical VS. Mild ^a

−479.87 (− 696.64, − 263.10)

− 262.18 (− 356.76, − 167.60)

− 159.06 (− 223.91, − 94.22)

−173.38 (− 289.84, − 56.91)

−57.68 (− 101.37, − 14.00)

Critical VS. Severe ^a

−90.85 (− 305.37, 123.67)

−63.44 (− 157.51, 30.62)

− 31.57 (− 96.09, 32.95)

−39.06 (− 155.12, 76.99)

− 34.41 (− 78.91, 10.08)

Inconsistency P-value

0.135

0.081

0.049

0.279

0.639