Table 1. Study characteristics.
| Publications, no. | 27 |
| Experiments, no. | 55 |
| Median number of animals per experiment, median (IQR) | 10 (7–15) |
| Species, no. (%) of experiments | |
| Rabbit | 19 (35) |
| Dog | 17 (31) |
| Monkey | 8 (15) |
| Rat | 6 (11) |
| Mouse | 4 (7) |
| Pig | 1 (2) |
| Sex, no. (%) of experiments | |
| Male | 14 (25) |
| Female | — |
| Mixed | 12 (22) |
| Not stated | 29 (53) |
| SAH induction, no. (%) of experiments | |
| Autologous blood injection | 40 (73) |
| Donor blood injection | 3 (5) |
| Autologous blood clot placement | 8 (15) |
| Blood injection not specified | 3 (5) |
| Endovascular perforation | 1 (2) |
| Outcomes assessed, no. (%) of experiments | |
| Case fatality | 8 (15) |
| Neurobehavioral score | — |
| Vasospasm | 43 (78) |
| Cerebral blood flow | 4 (7) |
| Timing of medication administration, no. (%) of experiments | |
| Before SAH | 12 (22) |
| At induction of SAH | 19 (35) |
| Within 60 minutes after SAH | 13 (24) |
| 61 minutes until 1 day after SAH | 7 (13) |
| More than 1 day after SAH | 4 (7) |
| Timing of outcome assessment (days; median (IQR)) | |
| Case fatality | 7 (6-7) |
| Neurobehavioral score | N/A |
| Study quality (median (IQR)) | 4 (3–5) |
Abbreviations: IQR, interquartile range; no. number; SAH, subarachnoid hemorrhage.