Table 2.
Risk factors in patients with and without PRES
| Variable | Not PRES (n = 183) | Radiologically confirmed PRES (n = 37) | p value | |
|---|---|---|---|---|
| Hypertension | <0.001 | |||
| No | 87/183 (48%) | 6/37 (16%) | ||
| Yes | 96/183 (52%) | 31/37 (84%) | ||
| Chemotherapy | 0.019 | |||
| No | 155/183 (85%) | 25/37 (68%) | ||
| Yes | 28/183 (15%) | 12/37 (32%) | ||
| Renal failure | 0.044 | |||
| No | 117/183 (64%) | 17/37 (46%) | ||
| Yes | 66/183 (36%) | 20/37 (54%) | ||
| Immune suppression | 0.146 | |||
| No | 104/183 (57%) | 26/37 (70%) | ||
| Yes | 79/183 (43%) | 11/37 (30%) | ||
| Eclampsia | 0.168 | |||
| No | 183/183 (100%) | 36/37 (97%) | ||
| Yes | 0/183 (0%) | 1/37 (3%) | ||
| Pre-eclampsia | 0.219 | |||
| No | 173/183 (95%) | 37/37 (100%) | ||
| Yes | 10/183 (5%) | 0/37 (0%) | ||
| Autoimmune disorders | 0.615 | |||
| No | 158/183 (86%) | 31/37 (84%) | ||
| Yes | 25/183 (14%) | 6/37 (16%) | ||
| Number of risk factors | 0.029 | |||
| 0 | 15/183 (8%) | 0/37 (0%) | ||
| 1 | 70/183 (38%) | 10/37 (27%) | ||
| 2 | 64/183 (35%) | 13/37 (35%) | ||
| 3 | 30/183 (16%) | 11/37 (30%) | ||
| 4 | 4/183 (2%) | 3/37 (8%) | ||
| Number of risk factors | 0.003 | |||
| Median | 2.0 | 2.0 | ||
| Range | (0.0; 4.0) | (1.0; 4.0) | ||
Variables presented with percentages are analysed using a Fisher’s exact test. Variables summarized by medians are analysed using a Mann–Whitney U test. All reported p values are two-sided