Journal of the Korean Association of Oral and Maxillofacial Surgeons : eISSN 2234-5930 / pISSN 2234-7550

Table. 1.

Table. 1.

Descriptive statistics of included patients who underwent bimaxillary orthognathic surgery for dentofacial deformity (n=156)

Variable Category Value
Sex Male 47 (30.1)
Female 109 (69.9)
Age (yr) 27.0±10.8
Body mass index (kg/m2) 21.3±3.1
Tranexamic acid No use 17 (10.9)
Use 139 (89.1)
Type of surgery LF1+BSSRO (yes) 156±100
Multiple answers allowed IVRO (yes) 6 (3.8)
Genioplasty (yes) 5 (3.2)
Multi-segment osteotomy (yes) 2 (1.3)
Mandibular midline osteotomy (yes) 1 (0.6)
Tooth extraction (yes) 2 (1.3)
Systemic disease Hypertension 4±0
Liver disease 14±0
Diabetes mellitus 1±0
Abnormal blood clotting 3±0
Operation time (min) 197.6±38.3
ASA-PS Class 1 70 (44.9)
Class 2 86 (55.1)
Intraoperative blood loss (mL) 124.0±38.3
In–out balance (mL) 876.8±506.6
Blood test Hemoglobin change (g/dL) −1.9±1.0
Hematocrit change (%) −5.8±4.2
Preoperative platelet in count (104/µL) 253.6±50.3
Preoperative PT-INR in preoperation 0.984±0.07

(LF-1: Le Fort I osteotomy, BSSRO: bilateral sagittal split ramus osteotomy, IVRO: intraoral vertical ramus osteotomy, ASA-PS: American Society of Anesthesiology physical status, PT-INR: international normalized ratio of prothrombin time)

Values are presented as number (%) or mean±standard deviation.

J Korean Assoc Oral Maxillofac Surg 2024;50:86~93
https://doi.org/10.5125/jkaoms.2024.50.2.86
© JKAOMS