History of ACS had significant higher leukocytes (p = 0.0001), neutrophils (p = 0.0001), lymphocytes (p = 0.013), monocytes (p = 0.0077), total bilirubin (p = 0.0003), LDH (p < 0.0001), CRP (p = 0.006), HbS (p = 0.0017), TG (p = 0.031) and API (p = 0.0065). Here, CRP is linked to acute chest syndrome.