+ANA's are common in pregnancy. Study of 2159 Chinese 1st trimester pregnant women found ANAs positivity in 14.7 % (1:100 most common titer; speckled most common pattern). ANA+ assoc w/ smoking, age 30-34 yrs, multiparity, thyroid Dz & hypertension https://t.co/mRQGajVe3g https://t.co/DqE1KC4Kgo