Table 1.

The clinical characteristics of PCOS women

	Cases	Controls	P-value
Number of subjects	38	40	-
Age (Yr)	28.58 $\pm$ 5.83	31.34 $\pm$ 5.5	$<$ 0.001${}^a$
BMI (kg/m${}^2$)	33.82 $\pm$ 3.39	32.39 $\pm$ 3.32	0.07${}^a$
Serum level of PTH (pg/ml)	31.36 $\pm$ 12.67	19.42 $\pm$ 10.07	0.32${}^b$
Serum level of calcium (mg/dl)	9.61 $\pm$ 0.48	9.59 $\pm$ 0.55	0.79${}^b$
Serum level of phosphorus (mg/dl)	3.35 $\pm$ 0.4	3.49 $\pm$ 0.44	0.61${}^b$
BMI: Body mass index; PTH: Parathyroid hormone, ${}^a$Independent sample t test and ${}^b$Mann-Whitney test