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Table 1 Demographic characteristics of patients and their female partners

From: The importance of the one carbon cycle nutritional support in human male fertility: a preliminary clinical report

  Patients Female partners
Mean age, years (range, SD) 37 (25–63, 5.5) 35 (25–44, 4.4)
Normospermic, n (%) 19 (23%)  
Asthenospermic, n (%) 14 (17%)  
Oligoasthenospermic, n (%) 51 (61%)  
Female factor, n (%)   28 (33%)
Previous ART cycles (mean n, range) 2.4 (2–6)