Leptin Levels in Serum or Semen and Its Association with Male Infertility: A Meta-Analysis with 1138 Cases

Figure 4

The estimates of SMD are based on 12 eligible studies providing serum leptin concentration with their 95% CIs. Note: FSH: follicle-stimulating hormone; LH: luteinizing hormone; T: testosterone; ELISA: enzyme-linked immunosorbent assay; RIA: radioimmunoassay.