Table 1. Comparison of clinical parameters between women who underwent elective fertility preservation before and after the outbreak of the Covid-19 pandemic
Characteristic Before Covid-19
(n=123)		 After Covid-19
(n=451)		 p value
Age (y) 35.8 (1.98) 35.6 (2.28) 0.217
BMI (kg/m2) 22.6 (4.13) 23.8 (4.68) 0.028
Marital status
Single
Married
Divorced
112 (91.1%)
6 (4.9%)
5 (4.1%)
423 (93.8%)
5 (1.1%)
23 (5.1%)		 0.024
Previous children
No
Yes
120 (97.6%)
3 (2.4%)
445 (98.7%)
6 (1.3%)		 0.412
Day 3 FSH (mIU/mL) 8.5 (3.13) 8.5 (3.48) 0.989*
TSH (µIU/mL) 2 (1.42) 2 (1.06) 0.811*
Prolactin (mIU/L) 263.8 (123.91) 277.3 (166.76) 0.690*
AFC (n) 12.7 (7.01) 13.1 (6.22) 0.218*

Values are presented as mean (standard deviation) or number (%). A p value of < 0.05 was considered significant.
*The p value was calculated after log transformation for normal distribution.
BMI, body mass index; FSH, follicle-stimulating hormone; TSH, thyroid-stimulating hormone; AFC, antral follicle count; SD, standard deviation.
Note: Standard reference ranges: FSH: 1-9.2 mIU/mL; TSH: 0.5-4.8 µIU/mL; Prolactin: 108.78-557.13 mIU/L