Table 1

Characteristics of PTP participants by autoantibody status

AAb+ (n = 3,358)AAb− (n = 60)P
Age (years)18.2 ± 13.4 (n = 3,325)16.6 ± 10.1 (n = 60)0.23
BMI (kg/m2)21.7 ± 6.7 (n = 3,222)20.7 ± 5.3 (n = 57)0.15
Sex (% female)53.252.50.91
Relation to the proband0.60*
 Offspring18.5 (n = 613)18.6 (n = 11)
 Parent21.2 (n = 705)15.2 (n = 9)
 Sibling52.0 (n = 1,726)52.5 (n = 31)
 Other8.3 (n = 276)13.5 (n = 8)
 Unknown(n = 38)(n = 1)
Duration of follow-up (years)3.0 ± 2.34.5 ± 1.7<0.0001
Race0.04**
 White87.1 (n = 2,872)96.4 (n = 53)
 Other12.9 (n = 424)3.6 (n = 2)
 Unknown(n = 62)(n = 5)
Ethnicity0.05*
 Hispanic or Latino12.3 (n = 394)3.6 (n = 2)
 Not Hispanic or Latino87.7 (n = 2,806)96.4 (n = 54)
 Other(n = 107)(n = 1)
 Unknown(n = 51)(n = 3)
  • Data are mean ± SD or %. AAb, autoantibody.

  • *The comparison does not include “other” and “unknown.”

  • **The comparison does not include “unknown.”