Table 6.
Manometric parameters in diabetic patients and controls.
| Variables | DM (N = 50) | Control (N = 20) | U Mann-Whitney Test | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| X | SD | M | Min | Max | X | SD | M | Min | Max | p | |
| MRP (mmHg) | 84.87 | 24.39 | 84.85 | 18.00 | 123.90 | 94.07 | 12.96 | 95.50 | 70.00 | 115.00 | 0.133 |
| MSP (mmHg) | 164.88 | 71.95 | 158.25 | 20.10 | 388.10 | 230.04 | 59.79 | 245.15 | 137.60 | 326.30 | 0.001 |
| MSP/MRP | 1.96 | 0.74 | 1.87 | 0.92 | 4.44 | 2.49 | 0.79 | 2.51 | 1.48 | 4.66 | 0.008 |
| HPZ (cm) | 3.56 | 0.77 | 3.70 | 1.60 | 4.80 | 3.44 | 0.64 | 3.50 | 1.80 | 4.30 | 0.362 |
| Duration of sustained squeeze (s) | 14.82 | 5.62 | 16.80 | 2.50 | 20.10 | 15.07 | 4.60 | 16.20 | 4.00 | 20.10 | 0.814 |
| RAP (mmHg) | 75.25 | 27.80 | 72.10 | 23.40 | 133.10 | 61.38 | 22.73 | 52.70 | 33.30 | 121.00 | 0.044 |
| Recto-anal pressure differential | −26.58 | 29.91 | −22.95 | −99.40 | 60.70 | −5.52 | 29.56 | −0.90 | −62.90 | 40.80 | 0.012 |
| The rectal pressure during the push maneuver (mmHg) | 47.51 | 26.46 | 49.60 | −18.50 | 96.40 | 55.90 | 26.46 | 60.45 | 11.40 | 109.20 | 0.210 |
| RAIR (mL) | 44.60 | 37.10 | 40.00 | 0.00 | 170.00 | 52.50 | 14.10 | 50.00 | 30.00 | 70.00 | 0.053 |
| First sensation (mL) | 47.00 | 25.50 | 40.00 | 20.00 | 140.00 | 28.50 | 3.66 | 30.00 | 20.00 | 30.00 | <0.01 |
| Defecation threshold (mL) | 85.80 | 38.23 | 70.00 | 30.00 | 200.00 | 74.00 | 9.40 | 75.00 | 60.00 | 90.00 | 0.578 |
| Minimum compliance | −0.11 | 1.80 | 0.28 | −11.10 | 0.67 | 0.37 | 0.27 | 0.33 | 0.13 | 1.39 | 0.292 |
| Maximum compliance | 4.18 | 3.54 | 3.47 | 1.44 | 25.60 | 4.31 | 4.40 | 2.93 | 1.35 | 19.50 | 0.304 |
| MRP/RAP | 1.22 | 0.47 | 1.13 | 0.54 | 3.04 | 1.69 | 0.56 | 1.76 | 0.95 | 3.06 | 0.00 |
MRP—maximal resting pressure; MSP—maximal squeeze pressure; HPZ—high-pressure zone; RAP—residual anal pressure; RAIR—recto-anal inhibitory reflex; X—mean; SD—standard deviation; M—median Min—minimal; Max—maximal; p < 0.05.