Table 1. Frequency of 16p12.1 microdeletion in cases and controls.
Cases | Controls | Significance | ||||
---|---|---|---|---|---|---|
ID/DD cohort | del 16p12.1 | total | del 16p12.1 | total | p-value | OR |
Discovery set1 | 20 | 11,873 | 2 | 8,540 | 0.0009 | 7.2 |
Replication set2 | 22 | 9,254 | 6 | 6,299 | 0.028 | 2.5 |
Combined3 | 42 | 21,127 | 8 | 15,199 | 0.000086 | 3.78 |
Schizophrenia cohort | 3 | 3,061 | 8 | 15,199 | 0.27 | 1.86 |
The 16p12.1 microdeletion was originally identified based on a meta-analysis that identified 5 cases from 6,860 individuals with autism, schizophrenia and developmental delay compared to 0 observations in a control group of 5,674 (p=0.049). None of these cases were used in the discovery set although the original control group was expanded in the discovery set.
For the replication set all controls and cases were independent.
Combined set composed of discovery set + replication set.