Research Article

Implementation of World Health Organization Recommendations for Semen Analysis: A Survey of Laboratories in the United Kingdom

Figure 3

Proportion of laboratories reporting additional seminal fluid parameters. Group 1: UKAS only; Group 2: UKAS and HFEA; Group 3: HFEA only; Group 4: no accreditation. Dark green (80%–100%), light green (60%–79%), yellow (40%–59%), orange (20%–39%), red (0%–19%). Significantly different from Group 1. Significantly different from Group 3.