1. Pain.
| Study | Measurement | Intervention (N) | Control (N) | Follow‐up | Intervention gp score (SD) | Control gp score (SD) | P value for difference in change from baseline |
| Jenabi 2010 | McGill Short Form Pain scores (0 to 10) | Chamomile tea bd (40) | No intervention (40) | At baseline | 8.42 (SD 11.88) | 7.35 (SD 11.91) | — |
| 1 month | 7.32 (SD 7.59) | 7.36 (SD 10.73) | P < 0.001 | ||||
| 3 months | 5.94 (SD 6.01) | 7.10 (SD 10.39) | P < 0.001 | ||||
| Schwertner 2013 | VAS 0 to 10 (adjusted mean) | Melatonin (20) | Placebo (20) | Follow‐up | 4.24 (SD 2.61) | 6.84 (SD 2.38) | — |
| Akhavan Amjadi 2009 | 0 to 3 pain scale | Cinnamon powder (26) | Placebo (21) | Baseline | 2.1 | 2.14 | — |
| After 2 cycles | 1.04 | 1.67 | — |
Abbreviations:
N: number of participants
SD: standard deviation
VAS: visual analogue scale