|
|
1997 Statistics
| Number of Births |
65,277 |
| Number of Samples |
68,038 |
*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 |
1996
No. - % | 1997
No. - % | 1998
No. - % |
| Blood clots on surface |
258 - 25% |
222 - 23% |
201 - 25% |
| Incomplete saturation |
263 - 26% |
264 - 28% |
216 - 27% |
| Filter paper damaged |
159 - 16% |
146 - 15% |
90 - 11% |
| Blood layered on surface |
60 - 6% |
69 - 7% |
32 - 4% |
| Blood applied on both sides |
97 - 10% |
68 - 7% |
53 - 7% |
| Sample delayed by mail |
62 - 6% |
108 - 11% |
45 - 6% |
| Contamination |
53 - 5.2% |
43 - 4.5% |
105 - 13% |
| Blood on tan cover |
15 - 1.5% |
10 - 1% |
14 - 2% |
| QNS to complete testing |
4 - .4% |
5 - .5% |
0 - 0% |
| Other |
48 - 4.7% |
18 - 2% |
38 - 5% |
Total Unsatisfactory
Percent of All Samples | 1019 - 100%
1.5% | 953 - 100%
1.4% | 794 - 100%
1.2% |
|
1 : 15,830