Table 2. Distribution of the characteristics of the study population by groups, intervention (tranexamic acid plus phenylephrine) versus control (phenylephrine alone).
| Intervention (n = 30) | Control (n = 30) | ||||
| Characteristics | Number | Percent | Number | Percent | P value |
| Gender | 0.292 | ||||
| Male | 16 | 53.3 | 20 | 66.7 | |
| Female | 14 | 46.7 | 10 | 33.3 | |
| Previous functional endoscopic sinus surgery | 0.278 | ||||
| Yes | 6 | 20.0 | 3 | 10.0 | |
| No | 24 | 80.0 | 27 | 90.0 | |
| Polyposis | 0.580 | ||||
| None | 9 | 30.0 | 12 | 40.0 | |
| Grade I | 9 | 30.0 | 11 | 36.7 | |
| Grade II | 10 | 33.3 | 6 | 20.0 | |
| Grade III | 2 | 6.7 | 1 | 3.3 | |
| Characteristics | Mean | SD | Mean | SD | P value |
| Age (yr) | 37.43 | 11.75 | 34.10 | 9.61 | 0.234 |
| Duration of surgery (min) | 114.00 | 37.93 | 102.73 | 25.36 | 0.182 |
| Systolic blood pressure (mmHg) | 100.27 | 7.48 | 102.83 | 7.90 | 0.201 |
| Diastolic blood pressure (mmHg) | 62.93 | 9.76 | 67.60 | 9.22 | 0.062 |
| Heart rate (/min) | 79.33 | 8.53 | 76.23 | 8.95 | 0.175 |
| Mean arterial pressure (mmHg) | 75.27 | 8.17 | 79.27 | 8.71 | 0.072 |
| Total score (CT scan) | 16.90 | 5.74 | 16.93 | 5.32 | 0.982 |
| Hemoglobin (mg/dl) | 14.33 | 1.65 | 14.36 | 1.52 | 0.955 |
| Hematocrit (%) | 44.13 | 0.70 | 43.69 | 4.17 | 0.667 |
| Bleeding time (min) | 2.00 | 0.49 | 1.84 | 0.55 | 0.242 |
| Prothrombin time (s) | 12.37 | 0.49 | 12.43 | 0.57 | 0.628 |
| Partial thromboplastin time (s) | 32.60 | 2.74 | 33.53 | 2.67 | 0.187 |
| International normalization ratio | 1.04 | 0.05 | 1.04 | 0.05 | 1.000 |
| Platelet count (/mcl) | 287166.70 | 95965.54 | 275633.30 | 67941.90 | 0.593 |