Table 2.

association between Amenorrhea/Oligomenorrhea and risk factors

	OR (95% CI) Univariate Regression analysis	OR (95% CI) Multivariate Regression analysis
Age < 20 years	1.58(1–2.57)	2.67 (1.47–4.85)*
BMI 20–25 (reference)
BMI < 20	1.04(0.60–1.79)	0.88 (0.49 – 1.60)
BMI > 25	2.06(1.0–4.27)	1.48(0.62–3.53)
Sport intensity (hours per week)	1.01 (0.99–1.03)	1.02 (0.99–1.04)
Late-onset Menarche	2.52(0.92–6.91)	3.32(1.04–10.51)*
Use of OCPs	4.07(2.28–7.25)	6.17(3.00–12.69)*
Types of sport
Other sports (reference)	1	1
subject scored	NA	NA
endurance sports	2.89(1.29–6.43)	2.89(1.22–6.84)*
body contour	0.79 (0.18–3.41)	0.20 (0.02–1.71)
weight categories	1.61(0.94–2.78)	2.09(1.15–3.82)*

All analyses were evaluated using the Logistics regression model.

All variable with a p-value < 0.2 in univarriate analysis entered in the multivariate model

* p-value < 0.05 ** p-value < 0.2

NA: Any participants in subject scored group reported Amenorrhea/Oligomenorrhea