Demographic characteristics of the study
| SCD | Controls | P Value | |
|---|---|---|---|
| Mean age across all observations (mo) | 113 | 116 | .732 |
| Age range across all observations (mo) | 33–190 | 31–194 | NA |
| Mean age at baseline (mo) | 98 ± 37.6 | 99 ± 38.0 | .947 |
| Age range at baseline (mo) | 33–156 | 31–157 | NA |
| Sex (female/male) | 15/13 | 16/12 | .788 |
Note:—NA indicates not applicable.