Table. 3.

AMH concentration after storage under three different conditions (4°C, 20°C, and –4°C) on days 1, 2, 4, and 7

Level Storage condition (°C) Category AMH stability test

Day 0 (n=2) Day 1 (n=2) Day 2 (n=2) Day 4 (n=2) Day 7 (n=2) Overall (n=10) Within-day CV (%) Between-day CV (%) Total CV (%)
I –20 Mean (ng/mL) 0.51 0.51 0.48 0.47 0.43 0.48 2.57 6.65 7.13
SD (ng/mL) 0.01 0.02 0.00 0.01 0.01 0.03
CV (%) 1.40 4.20 0.00 3.01 1.66 6.78
4 Mean (ng/mL) 0.51 0.49 0.47 0.46 0.45 0.47 0.94 4.75 4.85
SD (ng/mL) 0.01 0.00 0.01 0.00 0.00 0.02
CV (%) 1.40 0.00 1.52 0.00 0.00 4.58
20 Mean (ng/mL) 0.51 0.49 0.47 0.43 0.43 0.46 0.96 7.33 7.40
SD (ng/mL) 0.01 0.00 0.01 0.00 0.00 0.03
CV (%) 1.40 0.00 1.52 0.00 0.00 6.98
II –20 Mean (ng/mL) 6.67 6.10 6.20 5.77 5.85 6.11 2.00 5.64 5.98
SD (ng/mL) 0.16 0.21 0.08 0.01 0.02 0.35
CV (%) 2.44 3.36 1.26 0.12 0.36 5.68
4 Mean (ng/mL) 6.67 6.51 6.01 5.49 5.77 6.09 2.85 7.90 8.40
SD (ng/mL) 0.16 0.08 0.26 0.16 0.15 0.49
CV (%) 2.44 1.30 4.36 2.97 2.58 7.98
20 Mean (ng/mL) 6.67 6.06 5.76 5.29 5.09 5.77 2.31 10.80 11.00
SD (ng/mL) 0.16 0.23 0.08 0.06 0.01 0.60
CV (%) 2.44 3.7% 1.47 1.20 0.14 10.44
III –20 Mean (ng/mL) 10.71 10.30 10.11 9.13 9.31 9.91 2.47 6.53 6.98
SD (ng/mL) 0.11 0.32 0.03 0.37 0.21 0.66
CV (%) 0.99 3.09 0.28 4.11 2.28 6.64
4 Mean (ng/mL) 10.71 9.94 9.85 9.23 9.08 9.76 1.92 6.50 6.78
SD (ng/mL) 0.11 0.13 0.02 0.22 0.31 0.63
CV (%) 0.99 1.35 0.22 2.38 3.43 6.42
20 Mean (ng/mL) 10.71 10.48 9.48 8.48 8.54 9.54 1.88 10.89 11.05
SD (ng/mL) 0.11 0.35 0.08 0.06 0.12 1.00
CV (%) 0.99 3.37 0.90 0.67 1.41 10.44

Abbreviations: AMH, Anti-Müllerian hormone; CV, coefficient of variation; SD, standard deviation.

J Lab Med Qual Assur 2020;42:211~217 https://doi.org/10.15263/jlmqa.2020.42.4.211
© Lab Med Qual Assur