Table 1.
Butyrylcholinesterase Specific Activity (U/mg) in SIDS and Non-SIDS Cases and their matched controls.
| Mean (±SD) | Range | Median | OR per U/mg BChEsa | OR 95% CI | P value | ||
|---|---|---|---|---|---|---|---|
| Non-SIDS | Control (n=291) | 8·5 ± 3·4 | 1·3-21·3 | 8·2 | |||
| Cases (n = 30) | 8·5 ± 4·2 | 3·2-20·9 | 7·8 | 1·001 | 0·89-1·13 | 0·99 | |
| SIDS | Control (n=254) | 7·7 ± 3.6 | 1·7-23·3 | 7·0 | |||
| Cases (n=26) | 5·6 ± 2.1 | 2·9-10·8 | 5·2 | 0·73 | 0·60-0·89 | 0·0014 |
Butyrylcholinesterase Specific Activity (U/mg) in infants classified as Sudden Infant Death Syndrome (SIDS) and Non-SIDS (other causes) cases and their date of birth- and gender-matched controls (SD = standard deviation). Conditional logistic regression was used to calculate Odds Ratio (OR) per U/mg Butyrylcholinesterase specific activity (BChEsa), OR 95% Confidence Intervals (95% CI) and P values.