Weight gain in pregnancy depends on all except?

FACTORS INFLUENCING WEIGHT GAIN IN PREGNANCY Maternal age - Increased weight gain in younger women Physical activity - Several studies have demonstrated an inverse relation between weight gain and level of physical activity Prepregnancy weight - Weight gain in pregnancy is generally inversely propoional to BMI (Body Mass Index) in the pre pregnancy period Race / ethnicity - The mean weight gain differs in various ethnic / racial groups Parity - Lower weight gain was noted in multipara Hormonal milieu - Levels of hormones like insulin and leptin can influence weight gain in pregnancy Multiple pregnancy - Tend to gain more weight in multiple pregnancy Hyperemesis gravidarum - Lower weight gain in women with hyperemesis gravidarum Anorexia nervosa - Lower weight gain and lower bih weight in anorexic women Substance abuse - Studies have found no significant difference in mean weight gain between smoking and non smoking women. But the bih weight was lower in babies born to women who were smokers. Family violence - Greater risk of inadequate weight gain Marital status - Many studies have found that married women were more likely to gain weight than single / divorced women Ref : Dutta book of obstetrics 8th Ed