There was an error in the article, "Lower levels of serum adiponectin and the T allele of rs1501299 of the ADIPOQ gene are protective against polycystic ovarian syndrome in Jordan."1) After the publication of this work,1) authors noticed that they had made an error in the title. "Lower" was written incorrectly in the title, so "Lower" should be replaced by "Higher". A revised version of the title is given below. © 2018 The Korean Academy of Family Medicine.