Research Article

Neutrophil and Monocyte CD64 and CD163 Expression in Critically Ill Neonates and Children with Sepsis: Comparison of Fluorescence Intensities and Calculated Indexes

Table 2

Median CD64 and CD163 MFI and indexes (i) for neutrophils and monocytes with 95% confidence interval (CI) in critically ill neonates and children at the time of suspected sepsis (day 0) and 24 hours later (day 1).

Day 0Day 1
SIRS with sepsisSIRSPSIRS with sepsisSIRSP

Neutrophils
CD64fMFI83 (66–108)44 (36–56).0000*100 (75–162)47 (32–54).0000*
CD64i2.65 (2.02–4.03)1.3 (1.06–1.78).0000*3.36 (2.27–4.68)1.47 (1.07–1.78).0000*
CD163MFI65 (50–85)47 (44–64).0463*80.5 (57–115)50.5 (40.2–84.8).0056*
CD163i456 (423–548)447 (381–491).2250527 (486–621)462 (426–528).0495*

Monocytes
CD64MFI251 (231–294)168 (149–212).0000*307 (257–354)195 (159–243).0001*
CD64i 9.36 (7.94–11.2)6.69 (5.6–7.28).0001*11 (8.39–13.4)7.41 (6.43–8.22)
CD163MFI2350 (1674–3942)1451 (1234–1637).0063*3281 (2369–4093)2483 (1927–2937).0439*
CD163i20080 (9330–27352)9460 (7708–14893).083621136 (13636–32551)20142 (15926–25366).9598

*statistically significant differences, Unpaired Mann-Whitney test.