showed a trendp = 0.055
Univariate analysis of seminal iron levels and CLBR Seminal fluid iron concentration showed a trend toward a positive association with CLBR (β = 0.638, 95% CI − 0.015–1.292, p = 0.055), approaching but not reaching conventional statistical significance (p < 0.05) (Table 4 ) (Supplementary material 3).