|
|
1998 Statistics:
| Number of Births |
66,027 |
| Number of Samples |
68,559 |
*Prevalance rates listed are cumulative for all years of screening and include all Wisconsin births.
Causes of Unsatisfactory Samples
All samples are judged for acceptability.
Those not acceptable are
reported as "Unsatisfactory". The following table lists the most common causes
of unsatisfactory samples for the last 3 years
Reason | 1997
No. - % | 1998
No. - % | 1999
No. - % |
| Blood clots on surface | 222 - 23% | 201 - 25% | 251 - 21% |
| Incomplete saturation | 264 - 28% | 216 - 27% | 313 - 27% |
| Filter paper damaged | 146 - 15% | 90 - 11% | 215 - 18% |
| Blood layered on surface | 69 - 7% | 32 - 4% | 72 - 6% |
| Blood applied on both sides | 68 - 7% | 53 - 7% | 15 - 1% |
| Sample delayed by mail | 108 - 11% | 45 - 6% | 44 - 4% |
| Contamination | 43 - 4.5% | 105 - 13% | 122 - 10% |
| Blood on tan cover | 10 - 1% | 14 - 2% | 26 - 2.5% |
| QNS to complete testing | 5 - .5% | 0 - 0% | 2 - 0.5% |
| Other | 18 - 2% | 38 - 5% | 112 - 10% |
Total Unsatisfactory
Percent of All Samples | 953 - 100%
1.4% | 794 - 100%
1.2% | 1173 - 100 %
1.6% |
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1 : 15,531