PMID- 2308230
OWN - NLM
STAT- MEDLINE
DCOM- 19900410
LR  - 20220408
IS  - 0047-1860 (Print)
IS  - 0047-1860 (Linking)
VI  - 38
IP  - 1
DP  - 1990 Jan
TI  - [Clinical reference values for laboratory hematology tests calculated using the 
      iterative truncation method with correction: Part 1. Reference values for 
      erythrocyte count, hemoglobin quantity, hematocrit and other erythrocyte 
      parameters including MCV, MCH, MCHC and RDW].
PG  - 93-103
AB  - Age and sex dependent differences in the clinical reference values for 
      erythrocyte count (RBC), hemoglobin quantity (Hb), hematocrit (Ht) and other 
      erythrocyte parameters including MCV (mean corpuscular volume), MCH (mean 
      corpuscular hemoglobin), MCHC (mean corpuscular hemoglobin concentration) and RDW 
      (red cell distribution width), were calculated by the iterative truncation method 
      with correction (Usui's method) using the results from tests on 6,300 patients' 
      specimens obtained at Kyoto University Hospital. For RBC, Hb and Ht, the data 
      obtained from the individuals below 13 years old showed the normal or sometimes 
      log-normal distribution, but adjustment by the Xn-type variable transformation 
      was often necessary to obtain the normal distribution for the data taken from the 
      populations containing individuals over the age of 14. For the clinical reference 
      values of RBC, Hb and Ht, no sex difference was observed below the age of 12. The 
      values for males were significantly higher than those of females in the age range 
      13-79, and the values showed no significant sex-dependent difference at ages 
      above 80. In females, age-dependent change of values for RBC, Hb and Ht was less 
      prominent than in males; especially the upper limit values for females were very 
      stable for all ages. MCV and MCH gradually increased with age both in males and 
      females, and the MCHC remained constant in all age populations of male and 
      female. The reference value for RDW was generated by the percentile method 
      instead of the iterative truncation method because of the strong deviation in the 
      distribution pattern, and the RDW values showed a gradual increase with age in 
      both males and females.
FAU - Shiga, S
AU  - Shiga S
AD  - Hematology Division of Central Clinical Laboratory, Kyoto University Hospital.
FAU - Koyanagi, I
AU  - Koyanagi I
FAU - Kannagi, R
AU  - Kannagi R
LA  - jpn
PT  - English Abstract
PT  - Journal Article
PL  - Japan
TA  - Rinsho Byori
JT  - Rinsho byori. The Japanese journal of clinical pathology
JID - 2984781R
SB  - IM
MH  - Age Factors
MH  - Blood Volume
MH  - Erythrocyte Count
MH  - Erythrocyte Indices
MH  - Female
MH  - Hematocrit
MH  - *Hematologic Tests/statistics & numerical data
MH  - Hemoglobinometry
MH  - Humans
MH  - Male
MH  - Reference Values
MH  - Sex Factors
EDAT- 1990/01/01 00:00
MHDA- 1990/01/01 00:01
CRDT- 1990/01/01 00:00
PHST- 1990/01/01 00:00 [pubmed]
PHST- 1990/01/01 00:01 [medline]
PHST- 1990/01/01 00:00 [entrez]
PST - ppublish
SO  - Rinsho Byori. 1990 Jan;38(1):93-103.