Table 1 Participants’ baseline characteristics by research group

Age (years)

44.53 [2.5]

44.23 [2.4]

0.72^a

Type of delivery

0.5^b

 Natural childbirth

15 (50)

14 (46.7)

 Cesarean section

15 (50)

16 (53.3)

 Number of deliveries

2.9 [1.1]

2.53 [1.1]

0.91^a

Weight (kg)

68.63 [5.9]

69.46 [5.5]

0.73^a

Height (cm)

161.56 [8.7]

162.33 [7.7]

0.80^a

BMI (kg/m²)

26.60 [2.5]

26.49 [2.8]

0.72^a

Serum levels of vitamin D (ng/ml)

25.86 [1.7]

25.73 [2.08]

0.08^a