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Table 3 Human female serum FSH (IU/L): assay summary statistics after long term (median 2 years) storage at -25 degrees C

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

  1. n = 15 samples
  2. SD standard deviation, SE standard error, MIN minimum value, MAX maximum value, Q25 25th percentile, Q75 75th percentile.