Table 3.

Univariate and multivariate regression analysis for possible variables associated with severe pain

	Univariate		Multivariate
	OR (95% CI)	P-value	OR (95% CI)	P-value
Virtual reality use, ref. standard care	0.32 (0.09 to 1.12)	0.075	0.75 (0.15 to 3.87)	0.734
Age (yr)	0.99 (0.95 to 1.05)	0.899
Parity, ref. nulliparous	0.93 (0.20 to 4.31)	0.925
Previous vaginal deliveries, yes	1.45 (0.44 to 4.78)	0.545
Menopausal state, yes	1.33 (0.30 to 5.88)	0.704
Severe anxiety, ref. mild to moderate	9.64 (2.29 to 40.56)	0.002	10.35 (1.74 to 61.51)	0.010
Hysteroscopy duration (minutes)	4.99 (1.89 to 13.17)	0.001	5.95 (1.71 to 20.68)	0.005

All variables in the table were individually included in univariate analysis, and only variables with P<0.25 were included in multivariate analysis.

OR, odds ratio; CI, confidence interval; ref., reference.