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rametric method and the decisions for partitioning
into subgroups, were done in the same way as in the
clinical chemistry part of the project.
The database contains further information, which
have not yet been examined, for example differen-
tial counts on leukocytes or the results in relation to
haematology instrument used.
For haematology analytes there is no easily
obtained common calibrator. The working group
believes that results from the different national
external quality control programs could be used to
define quality specifications to be fulfilled by the
laboratories sharing the new reference intervals.
Preliminary haematology reference intervals
* Unit recommended by IFCC/IUPAC.
# For B–Thrombocytes the partitioning rules sug-
gest separate low reference limits for women and
men but the working group tends to propose a
common reference interval for both genders.
21
The results in the table do not present the final pro-
posal and the discussions in the working group are
not finalised. Some results remain to be explained
and the working group has not yet considered all
details. Rounding off is another question for further
discussions.
The Nordic working group has the following parti-
cipants: Eeva-Riitta Savolainen (Oulu/Uleåborg
Finland), Veli Kairisto (Turku/Åbo Finland), Niels
Jørgen Christensen (Aarhus/Århus Denmark), Leifur
Franzson (Reykjavik Iceland), Vigfus Thorsteinsson
(Akureyri Iceland), Sverre Sandberg (Bergen Norway),
Marthe Wedø Aune (Trondheim Norway), Birgitta
Swolin (Gothenburg/Göteborg Sweden), Gunnar
Nordin and Arne Mårtensson (Uppsala Sweden).
The haematology results from the project are shown
on the project home site http://www.furst.no/norip
Specific details of each analyte can be viewed by
selecting the specific analyte on the web page by
selecting “Haematology data” and then “Data for
each analyte”.
| 2 | 2003
Klinisk Biokemi i Norden
Analyte
Gender
NORIP
NORIP
subgroup calculated
suggested
B–Haemo-
Women 7,09 – 9,27 7,1 – 9,3
globin
Men 8,12 – 10,30 8,1 – 10,3
(mmol/L)*
B–Haemo-
Women 117 – 153
117 – 153
globin (g/L)
Men
134 – 170
134 – 170
B–Erc, volume Women 0,348 – 0,459 0,35 – 0,46
fraction
Men 0,395 – 0,500 0,40 – 0,50
B–Erythro-
Women 3,94 – 5,16
3,9 – 5,2
cytes (10
12
/L)
Men
4,25 – 5,71
4,2 – 5,7
Erc–MCV
82,0 – 98,0
82 – 98
(fL)
Erc–MCH
1,64 – 2,02
1,6 – 2,0
(fmol)*
Erc–MCH (pg)
27,1 – 33,3
27 – 33
Erc–MCHC
19,2 – 21,6 19,2 – 21,6
(mmol/L)*
Erc–MCHC
317 – 357
317 – 357
(g/L)
B–Leukocytes
3,47 – 8,81
3,5 – 8,8
(10
9
/L)
B–Thrombo- Women 165 – 387
–
cytes (10
9
/L)# Men
145 – 348
–
All
153 – 367
145 – 390
Island
