“…The authors showed that high concentrations of insulin were associated with a greater increase and retention of weight post-partum. Later, studies by Jang et al 25 , in 1998, Yang et al 29 , 2002 and Saldana et al 60 , 2006 controlling for age, weight and pre-pregnancy BMI, height, family history of diabetes mellitus and parity, have shown a significant association between weight gain and gestational diabetes mellitus, some studies have also adjusted for smoking habits and alcohol use.…”