Table 1. The clinical spectrum in family A and family B with SD1-c.
| Subject ID | Phenotype | Webbing in fingers | Webbing in toes | Additional finding | |||
| Right hand | Left hand | Right foot | Left foot | ||||
| FA-II10;III6,III10,III13,III15;IV2,IV9,IV11,IV13,IV15,IV17,IV20,IV21,IV23,IV25,IV26;V2,V3,V4,V5,V11 | |||||||
| SD1-c | 3/4 fingers | 3/4 fingers | / | / | / | ||
| FA-IV4 | SD1-c | / | 3/4 fingers | / | / | / | |
| FA-V2 | SD1-c | 3/4 fingers | / | / | / | / | |
| FA-V9 | Mild SPD1 | / | 3/4 fingers | / | / | bilateral phalanx duplication of hands | |
| FA-III3 | SD1-a | / | / | 2/3 proximal toes; partial cutaneous | / | ||
| FA-III22 | unknown | / | / | / | / | adduction deformity of left toes | |
| FB-I2;II2,II5; III3 | SD1-c | 3/4 fingers | 3/4 fingers | / | / | / | |
| FB-III1 | SD1-c | 3/4 fingers | 3/4 fingers | / | 5th finger clinodactyly of right hand | ||
| FB-III4 | SD1-c | 3/4 fingers | / | / | / | / | |
| FB-III5 | Mild SPD | / | 4/5 toes | unilateral phalanx duplication of left foot | |||