Group A Control for vitamin K | Group B Control for point location | Group C Standard of care menstrual disorder centre | Difference between groups | ||
---|---|---|---|---|---|
n=27 | n=27 | n=26 | |||
Mean±SD | Mean±SD | Mean±SD | p Value | ||
Age at start of study | Years | 22.5±2.2 | 20.5±3.2 | 20.7±2.9 | 0.098 |
Age at menarche | Years | 14.3±1.1 | 13.7±1.0 | 13.3±1.2 | 0.075 |
Shortest cycle | Days | 26.5±2.5 | 26.8±3.2 | 26.5±2.6 | 0.935 |
Longest cycle | Days | 33.2±4.6 | 32.1±3.4 | 31.9±4.0 | 0.652 |
Duration of menstrual flow | Days | 5.7±0.9 | 5.9±1.0 | 5.7±1.0 | 0.763 |
Missed school or work | Days | 1.8±0.4 | 1.8±0.4 | 1.9±0.5 | 0.781 |
Extra time spent in bed | Hours | 5.5±3.1 | 7.7±4.9 | 7.1±2.0 | 0.241 |
Typical worst pain* | NRS† 0–10 | 7.88±0.62 | 8.20±0.41 | 8.00±0.65 | 0.953 |
*Typical worst pain is the patient's assessment of what is usual for them to experience during an episode of menstrual pelvic pain.
†NRS where 0 equals no pain and 10 equals the worst pain the rater can possibly imagine.
NRS, Numeric Rating Scale.