Statistical analysis of polydactyly and syndactyly in hospitalized patients

Objective Understand the occurrence of polydactyly and syndactyly in hospitalized patients. Methods The clinical information of hospitalized patients with polydactyly and syndactyly were collected. The gender proportion, birth time, the type and location of distortion in hospitalized patients with polydactyly and syndactyly were descriptively analyzed. Statistical analysis was performed on the location of the malformation in male and female patients. Results Among the 183 patients with polydactyly and syndactyly, the ratio of male to female was about 3∶2. The number of patients born in August and September was significantly lower than that in other months. The malformation of 170 cases occurred only in the hands or feet, accounting for 93%, of which 155 cases occurred only in the hands, accounting for 85%, 15 cases occurred only in the feet, accounting for 8%; 13 cases occurred simultaneously in the hands and feet, accounting for 7%. 152 cases occurred on one side, accounting for 83%, of which 52 cases occurred on the left side, accounting for 28%, 100 cases occurred on the right side, accounting for 55%; 31 cases occurred bilaterally, accounting for 17%. Of the 135 patients with multiple fingers, 112 cases had multiple fingers on the radial side of the thumb, accounting for 83%; 23 cases had multiple fingers on the other sites, accounting for 17%. Among the 183 hospitalized patients with polydactyly and syndactyly, there were significant differences in the incidence of hand and foot between male and female patients, and the difference was statistically significant (P=0.011). Conclusion Among these hospitalized patients, the type of malformation is mainly single polydactyly and single syndactyly; the most common sites are in the hand or unilateral, and the onset of the thumb is the most common in multiple fingers. According to the chi-square test, male and female patients have significant differences in the incidence of hand and foot. Key words: Polydactyly; Syndactyly; Gender proportion; Location of malformation