1. Date of download: 7/8/2016 From: A Predictive Morphometric Model for the Obstructive Sleep Apnea Syndrome Ann Intern Med. 1997;127(8_Part_1):581-587. doi:10.7326/0003-4819-127-8_Part_1-199710150-00001 Oral cavity measurements for the morphometric model. Top.Bottom left.Bottom right.Measurement of the palatal height by two separate calipers, labeled ABC and DEF. Angle ABC is a 20-degree angle between the maxillary and mandibular incisor tips with the vertex (B) of an externally placed caliper at the mandibular condyle. Angle DEF represents a caliper placed inside the oral cavity. The vertical distance DF is equal to P (palatal height) in millimeters. Measurement from the mesial surfaces of the crowns of the second molars to obtain either Mx (maxillary intermolar distance) or Mn (mandibular intermolar distance) in millimeters. Measurement of OJ (overjet), or the horizontal overlap of the crowns of the maxillary and mandibular right central incisors in millimeters. Figure Legend: Copyright © American College of Physicians. All rights reserved.American College of Physicians

2. Date of download: 7/8/2016 From: A Predictive Morphometric Model for the Obstructive Sleep Apnea Syndrome Ann Intern Med. 1997;127(8_Part_1):581-587. doi:10.7326/0003-4819-127-8_Part_1-199710150-00001 Frequency histogram of morphometric model values for the study groups with and without the obstructive sleep apnea syndrome (OSAS).The white bars represent the OSAS group; the striped bars represent the non- OSAS group. The dashed vertical line indicates the model cutoff value of 70. The OSAS group has 254 patients with a mean morphometric value of 95.3 ± 21.2 and an age range of 24 to 77 years. The non-OSAS group has 46 patients with a mean morphometric value of 61.6 ± 6.2 and an age range of 15 to 71 years. Figure Legend: Copyright © American College of Physicians. All rights reserved.American College of Physicians

3. Date of download: 7/8/2016 From: A Predictive Morphometric Model for the Obstructive Sleep Apnea Syndrome Ann Intern Med. 1997;127(8_Part_1):581-587. doi:10.7326/0003-4819-127-8_Part_1-199710150-00001 Comparisons of receiver-operating characteristic curves.Different discriminant capacities to distinguish patients with the obstructive sleep apnea syndrome (OSAS) from patients without OSAS by using the morphometric model (MM) (a), body mass index (BMI) (b), and neck circumference (NC) (c) are shown. The true-positive and false-positive rates for the entire locus of possible points for the selected discriminant capacity are shown in each graph. The area under the curve values are 0.996 for the morphometric model, 0.938 for BMI, and 0.898 for neck circumference. Figure Legend: Copyright © American College of Physicians. All rights reserved.American College of Physicians

4. Date of download: 7/8/2016 From: A Predictive Morphometric Model for the Obstructive Sleep Apnea Syndrome Ann Intern Med. 1997;127(8_Part_1):581-587. doi:10.7326/0003-4819-127-8_Part_1-199710150-00001 The craniofacial versus the obesity component of the model.This scatterplot shows the craniofacial component (P + [Mx − Mn] + 3 x OJ) in the abscissa compared with the obesity component (3 x [Max (BMI −25, 0)] x [NC ÷ BMI]) in the ordinate. Plus signs indicate patients with a diagnosis of the obstructive sleep apnea syndrome (OSAS); circles indicate patients without OSAS. The solid line indicates the decision boundary at a craniofacial component cutoff value of 70, revealing the contribution of the craniofacial component of the model to nonobese patients. BMI = body mass index; Mx = maxillary intermolar distance; Mn = mandibular intermolar distance; NC = neck circumference; OJ = overjet. Figure Legend: Copyright © American College of Physicians. All rights reserved.American College of Physicians