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Table 3 Linear regression results for both non-standradized and standarzied BMI and WHR values

From: The potential role of central obesity in male infertility: body mass index versus waist to hip ratio as they relate to selected semen parameters

Non-standarzied VariableParameter95% Confidence LimitsStandardt ValuePr > |t|
EstimateError
Concentration
 BMI−0.91−1.65−0.180.37−2.450.01
 age0.19−0.270.660.240.820.41
 WHR−84.93− 131.71−38.1523.84−3.560.00
 age0.24−0.230.700.241.000.32
Progressive motility
 BMI−0.32−0.56− 0.070.12−2.560.01
 age−0.11−0.270.040.08−1.430.15
 WHR− 33.99−49.59− 18.407.95−4.28<.0001
 age−0.09− 0.250.060.08−1.150.25
Normal morphology
 BMI−0.07−0.13− 0.010.03−2.150.03
 age−0.04−0.080.000.02−2.090.04
 WHR−4.49−8.32−0.651.95−2.300.02
 age−0.04−0.080.000.02−2.090.04
Total sperm count
 BMI−3.62−6.14−1.091.29−2.810.01
 age0.05−1.551.660.820.070.95
 WHR− 409.00− 569.64− 248.3681.87−5.00<.0001
 age0.36−1.241.950.810.440.66
 Standardized VariableParameter95% Confidence LimitsStandardt ValuePr > |t|
EstimateError
Concentration
 sBMI−30.25−54.45−6.0512.34−2.450.01
 age0.19−0.270.660.240.820.41
 sWHR−49.69−77.05−22.3213.95−3.560.00
 age0.24−0.230.700.241.000.32
 Progressive motility      
 sBMI−10.55−18.63−2.464.12−2.560.01
 age−0.11−0.270.040.08−1.430.15
 sWHR−19.89−29.01−10.774.65−4.28<.0001
 age−0.09−0.250.060.08−1.150.25
Normal morphology
 sBMI−2.17−4.15−0.191.01−2.150.03
 age−0.04−0.080.000.02−2.090.04
 sWHR−2.63−4.87−0.381.14−2.300.02
 age−0.04−0.080.000.02−2.090.04