| 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 |