Prevalence and location of accessory pathways in Japanese schoolchildren
| Symptoms | Prevalence | Location | Male/female | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Left | Right | Septal | Unknown | ||||||||
| Elementary school | 1 (4.8%) | 21/28395 (0.073%) | 6 | 10 | 5 | 0 | 9/12 | ||||
| Junior high school | 2 (9.1%) | 22/31206 (0.070%) | 5 | 12 | 5 | 0 | 11/11 | ||||
| High school | 13 (22.8%) | 57/32837 (0.174%)2-150 | 27† | 15 | 12 | 3 | 32/25 | ||||
| Total | 16 (16.0%) | 100/92161 (0.109%) | 40 | 37 | 22 | 3 | 52/48 | ||||
High school students had a significantly higher prevalence of ventricular preexcitation and left free wall pathways than elementary and junior high school students.
↵2-150 p = 0.00086 v elementary school and p = 0.00032v junior high school; †p = 0.0021 velementary school and p = 0.00036 v junior high school.
Symptoms, prevalence of symptomatic children with ventricular preexcitation.