. Author manuscript; available in PMC: 2022 Apr 1.

Published in final edited form as: J Obstet Gynaecol Res. 2021 Feb 15;47(4):1472–1480. doi: 10.1111/jog.14663

Table 2. The relationship between bout duration, number of bouts, and bout intensity across conditions.

Asterisks indicate significant differences before vs after naproxen.

Participant Groups	Time point	Bout duration (s/15 min)	Number of bouts	Bout intensity (cm H₂O)
Pain-free Controls menses (n = 14)	Before	12.7 ± 2.4	8.7 ± 1.1	133.4 ± 7.9
	After	13.9 ± 2.7	7.3 ± 1.2	146.8 ± 13.5
	Effect size	0.128	0.382	0.401
Dysmenorrhea menses (n= 25)	Before	10.8 ± 1.3	18.0 ± 2.5	52.5 ± 6.5
	After	5.6 ± 1.2^**	9.4 ± 2.1^*	30.6 ± 5.7^*
	Effect size	0.847	0.754	0.734

= p<0.05,

^**

= p < 0.01,

^***

= p < 0.001