Skip to main content
. 2021 Aug 7;157(2):296–302. doi: 10.1002/ijgo.13840

TABLE 6.

Laboratory tests in healthy pregnant women and pregnant women with three severity stages of COVID‐19 disease

Healthy (n = 24) Mild (n = 33) Moderate (n = 10) Severe (n = 10) P value
Leukocytes per mm3 9255 (4120–19 290)a,c 6300 (4010–12 160)a 6605 (3600–11 600)c 8230 (4160–15 800) 0.016
Lymphocytes per mm3 1525 (213–3410)d,i 1350 (600–2530)m,p 855 (370–1200)d,m,t 568.5 (112–1120)i,p,t 0.001
Neutrophils per mm3 6495 (2440–16 920)b,e,j 4790 (2700–9640)b 5080.5 (270–9500)e 4196 (1420–9266)j 0.043
Platelets 103 per µl 247.5 (35–386)f 227 (146–346)n 182.5 (149–452)f,n 221 (132–645) 0.161
NLR 3.95 (1.5–22.5) 3.4 (1.5–14.7)q 5.27 (0.3–10.9) 6.85 (1.3–56.6)q 0.169
PLR 166.25 (23.6–638.5)g,k 195.6 (79.8–465)r 226.93 (148.6–567.6)g 539.7 (141.1–2053.6)k,r 0.001
Fibrinogen (mg/dl) 656 (459–930) 659.5 (340–877) 598.5 (192–822)u 783.5 (475–921)u 0.200
D‐dimer (ng/ml) 450 (74–949)h,l 411.5 (197–831)o,s 705 (367–1935)h,o 973 (404–1402)l,s 0.001

Abbreviations: NLR, neutrophil/lymphocyte ratio; PLR, platelet/lymphocyte ratio.

Values are given as median (minimum and maximum).

Kruskal‐Wallis analysis.

Comparisons between each group Mann‐Whitney U test.

Healthy vs mild: a P < 0.004, b P < 0.013.

Healthy vs moderate: c P < 0.021, d P < 0.001, e P < 0.049, f P < 0.047, g P < 0.034, h P < 0.045.

Healthy vs severe: i P < 0.001, j P < 0.054, k P < 0.001, l P < 0.001.

Mild vs moderate: m P < 0.006, n P < 0.021, o P < 0.011.

Mild vs severe: p P < 0.001, q P < 0.041, r P < 0.001, s P < 0.001.

Moderate vs severe: t P < 0.034, u P < 0.041.