TABLE 4.
Volume means and standard deviations volumes for ME/CFS and long COVID for the brainstem subfields and whole brainstem and their statistical inference.
| Volume in mm3 | P-value | 95% confidence interval | |||
| Lower | Upper | ||||
| Regions | |||||
| ME/CFS | Long COVID | ||||
| Medulla | 3110.3 ± 155.7↓ | 3302.4 ± 696.7 | 0.407 | -741.6 | 375.9 |
| Pons | 13889.5 ± 333.5↓ | 14120.3 ± 2305.8 | 0.734 | -2240.2 | 1712.7 |
| Midbrain | 5331.6 ± 295.5↓ | 5456.1 ± 889.2 | 0.603 | -862.9 | 570.2 |
| SCP | 270.01 ± 83.81↓ | 292.27 ± 83.81 | 0.335 | -88.9 | 39.8 |
| Whole brainstem | 22601.4 ± 488.7↓ | 23171.1 ± 3750.7 | 0.610 | -3702.7 | 2467.8 |
↓ Indicates a smaller volume in ME/CFS patients than long COVID. No significant volumetric differences were obtained between ME/CFS and long COVID. SCP, superior cerebral peduncle.