Association between Peak Neutrophil Count, Clopidogrel Loading Dose, and Left Ventricular Systolic Function in Patients with Primary Percutaneous Coronary Intervention

Table 3

WBC, neutrophil, and platelet related indices.

Variable	Low clopidogrel loading dose (300–450 mg); (𝑛=259)	High clopidogrel loading dose (600 mg); (𝑛=98)	P value
Total WBC (×10^9/L)
Admission	10.14±2.87	9.47±2.99	0.07
D1	10.58±2.66	9.70±2.43	0.01
D3	8.15±2.11	7.42±1.76	0.01
D7	7.23±1.84	6.94±1.52	0.25
Neutrophil (×10^9/L)
Admission	7.56±2.84	6.94±2.92	0.09
D1	8.21±2.68	7.20±2.67	0.001
D3	5.45±1.85	4.64±1.31	<0.0001
D7	4.60±1.49	4.30±1.05	0.08
Platelet counts (×10^9/L)
Admission	225.5±60.0	208.2±56.3	0.02
D1	209.2±54.5	197.7±57.2	0.08
D3	191.0±50.3	178.4±56.6	0.08
D7	222.9±54.2	214.5±55.5	0.29
MPV (fL)
Admission	10.16±0.99	10.05±1.12	0.39
D1	8.31±0.89	8.48±0.89	0.10
D3	8.53±0.94	8.56±0.90	0.82
D7	8.38±0.87	8.53±0.95	0.25

Values represent mean ± SD.
Note: WBC: white blood cell; D1: the first day after AMI; D3: the third day; D7: the seventh day; MPV: mean platelet volume.