Thymus size at 6 months of age and subsequent child mortality.

Objective: To examine determinants of thymus size at age 6 months and investigate whether thymus size at this age is a determinant of subsequent mortality.

Study Design: Thymus size was measured by transsternal sonography in 923 6-month-old children participating in a measles vaccination trial in Guinea-Bissau.

Results: Thymus size was strongly associated with anthropometric measurements.