Table 1 Comparison of semen parameters between different sperm DFI levels.

From: Correlation analysis of sperm DNA fragmentation index with semen parameters and the effect of sperm DFI on outcomes of ART

 

I

II

III

Parameter

M (P25,P75)

M (P25,P75)

M (P25,P75)

Abstinence days (days)

4.1 (3.1, 5.8)

3.9 (3.1, 7.3)

4.8 (3.6, 8.1)

Age (years)

28.9 (23.0, 33.0)

36.0 (23.0, 39.3)

36.1 (26.1, 39.6)

Sperm survival rate (%)

41.3 (34.2, 50.1)

35.6 (31.5, 43.7)*

27.7 (18.6, 38.5) *#

Semen volume (ml)

3.0 (2.2, 4.3)

3.05 (2.3, 4.2)

3.5 (3.5, 4.7)

Sperm concentration (× 106/ml)

85.5 (60.3, 150.3)

66.2 (56.3, 89.6)*

45.5 (21.6, 61.5)*#

Normal sperm (%)

2.1 (1.0, 3.2)

2.0 (1.1, 4.6)

1.5 (0.6, 1.7)

PR%

36.1 (30.3, 42.5)

28.8 (23.5, 37.3)*

21.3 (10.6, 32.3)*#

Sperm deformity rate (%)

97.00 (95.10, 99.10)

98.00 (96.00, 100)

99.31 (96.10, 100)

MDA (nmol/ml)

5.13 (3.21, 6.30)

7.11 (5.82, 9.15)

9.65 (6.92, 11.63)

TAC (U/L)

20.52 (16.60, 22.16)

15.50 (13.21, 18.30)

11.35 (9.51, 15.15)

  1. All data in the table are represented by M (P25, P75). * Compared with group I, # compared with group II, P < 0.01.
  2. According to DFI levels, there were 468 cases in group I (DFI ≤ 15%), 518 cases in group II (15% < DFI < 30%), and 476 cases in group III (DFI ≥ 30%).
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