| Methods |
Randomised, e.g. "paracervical block was randomly administered". |
| Participants |
47 women in labour at 38‐42 weeks with normal pregnancy. All infants delivered vaginally in cephalic presentation. |
| Interventions |
PCB was administered at cervical dilatation of 6‐7 cm with 12 mL of 2% chloroprocaine or 0.25% bupivacaine at the 4, 5, 6, 8 o'clock positions at the depth 2‐4 mm. |
| Outcomes |
The onset and duration of the block were evaluated by an anaesthetist. |
| Notes |
|
| Risk of bias |
| Bias |
Authors' judgement |
Support for judgement |
| Random sequence generation (selection bias) |
High risk |
"Patients were randomly assigned" to the intervention. |
| Allocation concealment (selection bias) |
High risk |
None. |
| Blinding of participants and personnel (performance bias)
All outcomes |
High risk |
Not blinded. |
| Blinding of outcome assessment (detection bias)
All outcomes |
High risk |
Not blinded. |
| Incomplete outcome data (attrition bias)
All outcomes |
Low risk |
Data complete. |
| Selective reporting (reporting bias) |
Low risk |
None identified. |
| Other bias |
Low risk |
None identified. |
