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Table 3 Spiral flow parameters in women without PCOS whose subendometrial flow can be detected (n = 165) according to BMIs (kg/m 2 )

From: Impact of obesity on endometrial blood flow in women without polycystic ovarian syndrome during intracytoplasmic sperm injection

  BMI < 18.5 18.5 ≤ BMI < 24 24 ≤ BMI < 28 BMI ≥ 28 P
  (n = 33) (n = 69) (n = 34) (n = 29)  
Spiral PI 1.00 (0.80-1.39) 0.96 (0.75-1.45) 1.14 (0.78-1.55) 1.29 (0.77-1.62) <0.05 a, b
Spiral RI 0.59 (0.52-0.64) 0.60 (0.52-0.67) 0.61 (0.56-0.62) 0.61 (0.56-0.70) 0.483
Spiral S/D 2.91 (2.72-3.21) 2.90 (2.60-3.24) 2.95 (2.70-3.41) 3.02 (2.71-3.35) 0.382
  1. Note: Values are median (range). RI  resistance index, PI  pulsatility Index, S/D  the ratio between peak systolic flow and lowest diastolic flow.
  2. a P value obtained by group-to-group comparison, BMI < 18.5 kg/m2 vs. ≥28 kg/m2.
  3. b P value obtained by group-to-group comparison, 18.5 ≤ BMI < 24 kg/m2 vs. ≥28 kg/m2.