== The distribution from the Lifelines population, anticitrullinated protein antibodies (ACPA) positivity, self-reported arthritis rheumatoid (RA) and described RA among different age ranges == ACPA-positive versus ACPA-negative individuals == ACPA-positive (6
== The distribution from the Lifelines population, anticitrullinated protein antibodies (ACPA) positivity, self-reported arthritis rheumatoid (RA) and described RA among…