Table 1.

Description of the study participants

	Regular menstruation (27–35 days)	Irregular menstruation (2–12 months)	p-value
Age (year)	24.5 ± 3.2	25.8 ± 4.1	NS
BMI (kg/m2)	29.7 ± 2.9	30.3 ± 3.2	NS
Total testosterone (nmol/liter)	1.75 ± 0.28	1.77 ± 0.33	NS
FSH (IU/liter)	4.7 ± 1.4	5.3 ± 1.2	NS
LH (IU/liter)	11.6 ± 3.4	12.6 ± 4.8	NS
FPG (mmol/liter)	5.6 ± 0.6	5.6 ± 0.8	NS
FI (mIU/liter)	37.2 ± 26.2	39.4 ± 18.7	NS

Abbreviations: BMI, body mass index; FSH, follicle-stimulating hormone; LH, luteinizing hormone; FPG, fasting plasma glucose; FI, fasting serum insulin; PCOS, polycystic ovarian syndrome. Mean ± SD. NS, not significant. Significant difference between regular and irregular menstruation after independent-sample t-test