Longer bed rest v immediate mobilisation or short bed rest for preventing headache after cervical or lumbar puncture*
| Reason for puncture | Pooled relative risk (95% CI) |
|---|---|
| *Abbreviation defined in glossary. | |
| †Not significant. | |
| Myelography | 0.93 (0.81 to 1.08)† |
| Diagnosis | 0.97 (0.79 to 1.19)† |








