From: Inter-laboratory validation of the measurement of follicle stimulating hormone (FSH) after various lengths of frozen storage
Labstorage time
Mean (SD)
Median (SE)
Min, Max
Q25, Q75
Lab A0
13.33 (5.02)
12.70 (1.30)
5.90, 22.60
9.75, 15.40
Lab B1-3 years
9.53 (3.27)
9.00 (0.84)
5.00, 16.20
7.95, 11.25
Lab C1-3 years
10.27 (4.26)
10.60 (1.10)
3.80, 20.20
7.69, 11.25