5. Definition of active phase of labour.
| Trial ID | ||
| Cervix dilatation | Uterine contractions | |
| Bahadoran 2011 | 4 cm and 80 % effacement or 5 cm without considering effacement |
poor defined: Effective contractions |
| Begum 2013 | ≥ 5 cm | 3‐4 per 10 minutes |
| Bor 2016 | ≥ 5 cm | 3‐5 per 10 minutes |
| Chookijkul 2016 | ≥ 4 cm | poor defined: Good contractions |
| Chopra 2015 | 4‐6 cm | 3‐5 per 10 minutes |
| Daniel‐Spiegel 2004 | ≥ 5 cm | 3‐5 per 10 minutes |
| Diven 2012 | ≥ 4 cm. | 3‐5 per 10 minutes |
| Ozturk 2015 | ≥ 5 cm | 3‐5 per 10 minutes |
| Rashwan 2011 | not defined | 3‐5 per 10 minutes |
| Ustunyurt 2007 | ≥ 5 cm | 3‐4 per 10 minutes |