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Table 4 Multivariate linear regression analysis of factors on number of embryos available

From: Mediterranean diet improves embryo yield in IVF: a prospective cohort study

Variable t P Unstandardized β [95% CI] Standardized β
MediDiet adherence (a vs. b) −2.306 0.022 −1.020 [− 1.889, − 0.151] − 0.099
Female age − 4.254 0.000 − 0.281 [− 0.411, − 0.151] − 0.205
Infertility type (primary vs. secondary) 1.153 0.250 0.524 [− 0.369, 1.417] 0.052
Duration of infertility 0.511 0.610 0.046 [− 0.132, 0.225] 0.023
BMI −0.483 0.629 −0.039 [− 0.200, 0.121] −0.022
Basal FSH −3.555 0.000 −0.282 [− 0.438, − 0.126] −0.165
Gn duration 2.877 0.004 0.343 [0.109, 0.578] 0.152
Dosage of Gn −4.516 0.000 −0.001 [− 0.002, − 0.001] −0.259
Sperm concentration −0.601 0.548 0.003 [−0.014, 0.008] 0.026
Total motile sperm 1.303 0.193 −0.020 [− 0.010, 0.049] 0.056
  1. NOTE: β = regression coefficient; a means higher adherence to MediDiet pattern, b means lower adherence to MediDiet pattern