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Table 1 Basic information about laboratories participating in the external quality assessment

From: External quality assessment scheme for sperm DNA fragmentation: a pilot study in China

Basic information

2021

2022

Number of participants

10

28

Geographical distribution

 Provinces

2

6

 Cities

5

13

Type of laboratories

 Andrology laboratory

8/10 (80.0%)

25/28 (89.3%)

 Clinical laboratory

2/10 (20.0%)

3/28 (10.7%)

Hospital grade

 Tertiary hospital

8/10 (80.0%)

24/28 (85.6%)

 Secondary hospital

1/10 (10.0%)

2/28 (7.2%)

 Primary hospital

1/10 (10.0%)

2/28 (7.2%)

Detection Method

 SCSA

5/10 (50.0%)

17/28 (60.7%)

 SCD

5/10 (50.0%)

11/28 (39.3%)

  1. SCSA Sperm chromatin structure assay, SCD Sperm chromatin dispersion