Summary of patients with and without reflux
| With Reflux | Without Reflux | |
|---|---|---|
| No. of patients | 8 | 118 |
| Sex | 2 F, 6 M | 30 F, 88 M |
| Hypertension | 6 | 28 |
| Side of injection | Left = 8 | Left = 57 |
| Right = 0 | Right = 61 | |
| Retrosternal distance (left-arm injection) (mean) | 7.2 + 3.1 mm | 12.1 + 3.2 mm |