Retinol-binding protein 4 (RBP4) and high sensitivity C-reactive protein (hs-CRP) levels in patients with diminished ovarian reserve (DOR): a cross-sectional study

Table 1 Demographic and IVF related characteristics of the patients

Variables	DOR (n = 24)	NOR (n = 48)	P
Age (years)	36.00 ± 6.00	31.25 ± 4.16	0.000*
BMI (kg/m²)	22.36 ± 2.85	21.20 ± 2.59	0.088
Infertility duration (years)	3.00 ± 5.00	4.00 ± 5.00	0.129
AMH (ng/ml)	0.61 ± 0.33	2.87 ± 1.02	0.000*
Day-3 FSH (mIU/ml)	13.02 ± 4.39	8.48 ± 2.65	0.000*
Estradiol (pg/ml)	45.00 ± 23.39	44.19 ± 13.28	0.820
Season of blood sample, n (%)
Autumn	13 (54.17%)	30 (62.50%)
Summer	11 (45.83%)	18 (37.50%)	0.497
Total antral follicle count	6.83 ± 4.03	13.00 ± 8.00	0.000*
Number of oocytes retrieved	3.00 ± 5.00	11.15 ± 5.21	0.000*

Continuous variables are presented as means ± SDs or medians ± interquartile ranges (IQRs). Categorical variables are expressed as numbers (percentages). DOR Diminished ovarian reserve, NOR Normal ovarian reserve. *P<0.05 indicates statistical significance

ISSN: 1477-7827