Table 1.
Incidence of postdural puncture headache in relation to different factors
| Risk factors | No | Yes | P-value |
|---|---|---|---|
| Age, mean ± SD (years) | 31.5 ± 0.22 | 32.8 ± 0.96 | 0.120 |
| Weight, mean ± SD (kg) | 83.1 ± 0.41 | 85.2 ± 1.90 | 0.275 |
| Needle type, n (%) | |||
| 25 G Whitacre | 318 (94.9) | 17 (5.1) | 0.187 |
| 27 G Spinostar | 319 (92.5) | 26 (7.5) | |
| Repeated puncture attempt, n (%) | |||
| No | 448 (95.3) | 22 (4.7) | 0.008 |
| Yes | 189 (90.0) | 21 (10.0) | |
| Previous spinal anesthesia, n (%) | |||
| No | 481 (93.9) | 31 (6.1) | 0.736 |
| Yes | 151 (93.2) | 11 (6.8) | |
| Previous spinal headache, n (%) | |||
| No | 616 (94.2) | 38 (5.8) | 0.348 |
| Yes | 16 (88.9) | 2 (11.1) | |
| Presence of tension headache, n (%) | |||
| No | 543 (95.6) | 25 (4.4) | <0.001 |
| Yes | 94 (83.9) | 18 (16.1) | |
| Preeclampsia, n (%) | |||
| No | 631 (93.6) | 43 (6.4) | 0.523 |
| Yes | 6 (100) | 0 (0) | |
| Migraine, n (%) | |||
| No | 618 (93.5) | 43 (6.5) | 0.251 |
| Yes | 19 (100) | 0 (0) | |
| Sinusitis, n (%) | |||
| No | 586 (93.5) | 41 (6.5) | 0.427 |
| Yes | 51 (96.2) | 2 (3.8) | |
| Caffeine withdrawal, n (%) | |||
| No | 617 (93.9) | 40 (6.1) | 0.178 |
| Yes | 20 (87.0) | 3 (13.0) | |
Abbreviations: n, number; SD, standard deviation.