|
| |
Principles and number of exclusions of NORIP reported data
See % remaining data at the
end
Updated 13.05.2003
Only figures in yellow cells are summed at the end.
Data from remeasurements of LD and ALP by Odense, Danderyd and Fürst is not included.
| Exclusion types |
Number
of exclusions |
| Exclusions |
% of total |
Thawed serum |
% of all thawed serum |
| Based on control values |
0 |
0.0% |
0 |
0.0% |
| Series number lacking (i.e. no connection to
control values) |
2478 |
1.9% |
313 |
0.5% |
| No method data submitted |
665 |
|
440 |
|
| Duplicates: Same samples measured by
different methods on same component |
2252 |
1.8% |
1659 |
2.65 |
| Material difference: Automatic test of
extreme differences between combinations of serum, plasma, fresh, thawed - the extreme
value is excluded |
1053 |
0.8% |
375 |
0.6% |
| Person exclusions (extreme values for one or more components
excludes the person), see Peter
Feldings Iceland presentation |
| |
Glucose > 11.0 mmol/L or Glucose >7.0 mmol/L and
fasting >8 hours |
11 persons excluded |
|
|
|
|
| |
5s3s and 4s4s*: |
17 persons excluded |
|
|
|
|
| Sum |
No of persons excluded: 28 |
1161 |
1.5% |
513 |
0.8% |
| Method exclusion |
| |
Enzymes (see Heidi
Steensland's Iceland precentation). Vitros results have been included later for all
enzymes except LD, amylase and pancreatic amylase. |
16946 |
16.0% |
8399 |
17.6% |
| |
|
Component |
Serum and plasma, fresh and
thawed |
Serum, thawed |
|
| |
Total number |
% excluded |
Total number |
% excluded |
| ALP |
5008 |
84% |
2477 |
80% |
| ALT |
5656 |
15% |
2869 |
15% |
| Amylase |
4123 |
62% |
2021 |
64% |
| AST |
5148 |
12% |
2452 |
12% |
| CK |
5485 |
17% |
2641 |
20% |
| GT |
5339 |
47% |
2557 |
45% |
| P-amylase |
1617 |
34% |
850 |
40% |
| LD |
4707 |
100% |
2376 |
100% |
| |
Plasma with bad correlation with serum for
method |
1493 |
1.2% |
0 |
0.0% |
| Component specific exclusions |
| |
Fasting: Triglycerides, LDL, glucose |
5532 |
4.3% |
2770 |
4.4% |
| |
Diabetes: Glucose |
640 |
0.5% |
275 |
0.4% |
| |
Physical activity: CK |
843 |
0.7% |
374 |
0.6% |
| |
Oestrogen use: TIBC |
237 |
0.2% |
156 |
0.2% |
| |
Iron deficiency: Values < 6 umol/L |
46 |
0.04% |
19 |
0.03% |
| Other |
65 |
0.05% |
58 |
0.1% |
| |
Large dispersion if reference values for TIBC |
25 |
0.0% |
25 |
0.0% |
| |
One lab measured ionised Calsium instead of total calsium |
21 |
0.0% |
21 |
0.0% |
| |
Manual test of extreme differences between combinations of
serum, plasma, fresh, thawed - the extreme value is excluded |
17 |
0.0% |
11 |
0.0% |
| |
Probably decimal point error |
2 |
0.0% |
1 |
0.0% |
| Exclusions by enzyme outier test (>M+4s
as log transformed) |
26 |
|
31 |
|
| Excluded (less than the sum because
some values have been excluded for more than one reason) |
29514 |
23.4% |
13053 |
21.3% |
| Total number of data |
126213 |
100% |
61335 |
100% |
* 5s3s: Results on thawed serum exceeding median
(NORIP) + 5s (Malmø/Odense) for one component and median (NORIP)+ 3 s (Malmø/Odense) for
another component. For 4s4s the limits are 4s for both components. s (as an
estimation of total biological variation) were calculated from reference intervals used in
Malmø 2001 with few exeptions. The 5s3s and 4s4s rules was not applied on low values of
ALT, AST, CK, GT, ALP, LD , Creatinine, Carbamid(Urea), Triglycerides and/or Bilirubin
%
of all data in database NOT excluded according to rules mentioned above
(updataed 24/1-2003, Pål Rustad)
18/3-2003: This table have not been updated for enzymes
after inclusion of Vitros results (see table above)
Component |
Plasma, thawed |
Plasma, fresh |
Serum, thawed |
Serum, fresh |
Na |
91.6
% |
94.4
% |
95.6
% |
93.4
% |
K |
89.5
% |
85.8
% |
94.6
% |
90.4
% |
Creatinin |
94.8
% |
94.1
% |
97.3
% |
93.3
% |
Urea |
94.9
% |
84.9
% |
98.1
% |
93.7
% |
Protein |
88.2
% |
90.5
% |
94.7
% |
90.6
% |
Albumin |
91.6
% |
94.1
% |
96.1
% |
91.9
% |
Glucose |
38.1
% |
51.9
% |
39.0
% |
49.6
% |
Ca |
92.6
% |
89.8
% |
95.1
% |
90.9
% |
Mg |
92.4
% |
94.2
% |
96.6
% |
92.7
% |
P
inorg |
94.5
% |
92.6
% |
97.7
% |
90.3
% |
Uric
acid |
95.0
% |
78.8
% |
96.8
% |
92.0
% |
Cholesterol |
94.8
% |
95.7
% |
98.9
% |
94.0
% |
Trigly |
36.3
% |
51.8
% |
44.3
% |
52.0
% |
Bilirubin |
70.0
% |
65.2
% |
97.2
% |
93.2
% |
ALP |
0.0
% |
0.0
% |
0.0
% |
0.0
% |
Amylase |
60.5
% |
32.6
% |
35.6
% |
35.1
% |
AST |
74.3
% |
72.7
% |
65.8
% |
74.3
% |
Alt |
59.7
% |
60.1
% |
60.4
% |
72.7
% |
CK |
63.4
% |
61.9
% |
51.3
% |
63.8
% |
LD |
0.0
% |
0.0
% |
0.0
% |
0.0
% |
Fe |
93.0
% |
94.9
% |
97.5
% |
93.8
% |
TIBC |
81.3
% |
82.9
% |
80.8
% |
87.7
% |
T4 |
97.1
% |
25.0
% |
97.7
% |
No
data reported |
GT |
46.9
% |
38.3
% |
33.2
% |
38.2
% |
TSH |
97.1
% |
25.2
% |
98.3
% |
No
data reported |
Ferritin |
100.0
% |
No
data reported |
98.5
% |
100.0
% |
P-Amylase |
81.6
% |
66.5
% |
58.5
% |
60.8
% |
HDL |
98.5
% |
94.9
% |
98.7
% |
93.9
% |
|