title: Laboratory reference intervals of complete blood count for apparently healthy elderly people in Shuyang, China.
abstract: BACKGROUND
  Currently, there are no appropriate RIs of blood cells available for the elderly in most clinical laboratories in China. The aim of this study is to establish the RIs of complete blood cell count for apparently healthy elderly people.
  
  
  METHODS
  Blood specimens were collected from elderly residents by standard procedures. Complete blood counts were determined by Sysmex XE-2100 analyzer. The RIs and 95% confidence intervals were calculated by the robust method recommended by CLSI C28-A3 guideline.
  
  
  RESULTS
  RIs established for healthy elderly include: total WBC 3.63 - 10.3 x 10(9)/L for males and 3.64 - 10.3 x 10(9)/L for females; RBC 3.74 - 5.49 x 10(12)/L for males and 3.74 - 5.53 x 10(12)/L for females; Hb 109 - 167 g/L for males and 109 - 168 g/L for females; HCT 36.0 - 51.8% for males and 35.7 - 51.8% for females; MCV 86.0 - 105 fL for males and 86.2 - 106 fL for females; MCH 26.4 - 33.6 pg for males and 26.4 - 33.8 pg for females; MCHC 293 - 333 g/L for males and 291 - 335 g/L for females; RDW-SD 39.3 - 53.7 fL for males and 39.6 - 54.5 fL for females; RDW-CV 11.7 - 15.1% for males and 11.7 - 15.2% for females; PLT 122 - 355 x 10(9)/L for males and 122 - 350 x 10(9)/L for females; PCT 14.1 - 37.6 x 10(-1) mL/L for males and 13.9 - 37.9 x 10(-1) mL/L for females; MPV 11.3 - 15.5 fL for males and 11.3 - 15.5 fL for females; PDW 9.74 - 17.0% for males and 9.72 - 17.0% for females; platelet-LCR (P-LCR) 21.3 - 51.2% for males and 21.1 - 51.4% for females.
  
  
  CONCLUSIONS
  We established scientific and reasonable RIs of blood cell analysis for the healthy elderly in our region.
authors: Guo-Ming
authors: GM
authors: Zhang
authors: Yong-Jie
authors: YJ
authors: Xia
authors: Gao-Ming
authors: GM
authors: Zhang
authors: Bao-Lin
authors: BL
authors: Zhu
authors: Li-Yi
authors: LY
authors: Hu
authors: Xiao-Bo
authors: XB
authors: Ma
authors: Ye-Ting
authors: YT
authors: Zhou
mesh_terms: D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D000375:Aging / Q000097:blood*; D001772:Blood Cell Count / Q000592:standards*; D002681:China; D005260:Female; D006304:Health Status; D064368:Healthy Volunteers; D006801:Humans; D008297:Male; D011237:Predictive Value of Tests; D012016:Reference Values; D012737:Sex Factors