Table 3 Laterality and symmetry in Chinese syndactyly
From: The changing epidemiology of syndactyly in Chinese newborns: a nationwide surveillance-based study
Characteristicsb | Overall (N = 13,611) | Isolated (N = 11,268) | Associated (N = 2343) |
|---|---|---|---|
Bilateral (n = 2500) c | 2502 (18.4%) | 1924 (17.1%) | 578 (24.7%) |
 Hand | 893 (35.7%) | 663 (34.5%) | 230 (39.8%) |
 Foot | 1100 (44.0%) | 926 (48.1%) | 174 (30.1%) |
 Hand and foot a | 509 (20.3%) | 335 (17.4%) | 174 (30.1%) |
Unilateral (n = 10,434) d | 10,434 (76.7%) | 8931 (79.3%) | 1503 (64.1%) |
 Lefte | 4819 (46.2%) | 4074 (45.6%) | 745 (49.6%) |
 Hand | 2458 (51.0%) | 2006 (49.2%) | 452 (60.7%) |
 Foot | 2295 (47.6%) | 2015 (49.5%) | 280 (37.6%) |
 Hand and foot | 66 (1.4%) | 53 (1.3%) | 13 (1.7%) |
 Righte | 5615 (53.8%) | 4857 (54.4%) | 758 (50.4%) |
 Hand | 2838 (50.5%) | 2384 (49.1%) | 454 (59.9%) |
 Foot | 2710 (48.3%) | 2422 (49.9%) | 288 (38.0%) |
 Hand and foot | 67 (1.2%) | 51 (1.1%) | 16 (2.1%) |
Laterality unspecified (n = 677) f | 675 (5.0%) | 413 (3.7%) | 262 (11.2%) |
 Hand | 555 (82.2%) | 330 (79.9%) | 225 (85.9%) |
 Foot | 52 (7.7%) | 39 (9.4%) | 13 (5.0%) |
 Hand and foot | 19 (2.8%) | 7 (1.7%) | 12 (4.6%) |
 Limb unspecified | 49 (7.3%) | 37 (9.0%) | 12 (4.6%) |