Table 1 Demographic and clinical characteristics of the KFS cohort
From: The mutational burden and oligogenic inheritance in Klippel-Feil syndrome
Parameter | KFS cohort (n = 37) |
|---|---|
Age in years, mean (range) | 12.6 (5–26) |
Sex, n (%) | |
 Men | 20 (54.1) |
 Women | 17 (45.9) |
Level of fusion, n (%) | |
 C1–C2 | 3 (8.1) |
 C2–C3 | 15 (40.5) |
 C3–C4 | 14 (37.8) |
 C4–C5 | 10 (27.0) |
 C5–C6 | 13 (35.1) |
 C6–C7 | 21 (56.8) |
 C7–T1 | 10 (27.0) |
KFS classification, n (%) | |
 Type I | 15 (40.5) |
 Type II | 5 (13.5) |
 Type III | 17 (45.9) |
Comorbidities, n (%) | |
 Intraspinal anomalies | 9 (24.3) |
 Extraskeletal anomalies | 12 (32.4) |
Clinical manifestations, n (%) | |
 Limited cervical ROM | 17 (45.9) |
 Short neck | 10 (27.0) |
 Low posterior hairline | 6 (16.2) |
 Clinical triad | 4 (10.8) |
 Torticollis | 4 (10.8) |