|
|
1999 Statistics
| Initial Samples |
66,792 |
| Total Samples |
69,904 |
| Disorder |
Number of Confirmed
Cases in 1999 |
Prevalence Rate* |
| PKU | 4 |  1 : 15,629 |
| Galactosemia | 2 | 1 : 56,391 |
| Biotinidase Deficiency | 1 | 1 : 85,370 |
| Congenital Adrenal Hyperplasia | 5 | 1 : 10,381 |
| Congenital Hypothyroidism | 36 | 1 : 3,669 |
| Cystic Fibrosis | 14 | 1 : 4,379 |
Sickling Disorders
(SS, SC, S-Beta thal) | 17 | 1 : 3,037 |
*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% | 252 - 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% |
|
