. 2022 Jun;30(2):100–104. doi: 10.5455/aim.2022.30.100-104

Table 3. Comparison of sperm recovery abilities among the 3 methods. In the same row, values with different symbols are significantly different. ^a vs. ^b, p < 0.0001; ^a vs. ^c p < 0.05.

Variable	Mini-gradient Mean ± SD	Single 90-layer Mean ± SD	Single 45-layer Mean ±SD
Sperm recovery rate (%)	44.3 ± 14.1^a	48.8 ± 15.3^a	76.2 ± 15.4^b
Motile sperm recovery rate (%)	58.2 ± 24.6^a	64.2 ± 19.5^a	78.1 ± 17.6^c
Progressive motile sperm recovery rate (%)	57.6 ± 20.6^a	62.8± 18.5^a	78.7 ± 12.4^b

Table 3. Comparison of sperm recovery abilities among the 3 methods. In the same row, values with different symbols are significantly different. a vs. b, p < 0.0001; a vs. c p < 0.05.