Correlation between change in body weight rather than current body weight and change in serum adiponectin levels in a Japanese population - the Funagata study

Serum adiponectin levels are decreased in obese subjects. We examined the association of current body weight (BW) and its change with a change in serum adiponectin levels. Serum adiponectin levels at the baseline (from 1995 to 1997) and the 5-year follow-up (from 2000 to 2002) examinations were evaluated in 1003 (M/F, 425/578; age at the baseline examinations, 58.3 +/- 11.7/57.5 +/- 11.0 years) Japanese subjects from a cohort population (N = 2013) of the Funagata study. Correlations and associations of BW at the baseline examinations and changes in BW between the baseline and the follow-up examinations (delta BW) with changes in the serum adiponectin levels in the study period (delta Adiponectin) were examined. Stepwise regression analyses revealed a significant correlation of the delta BW (r = -0.233 and -0.204 for men and women, respectively; r = -0.324 for the upper tertile group divided based on their body mass index in women) with the delta Adiponectin. However, the BW at the baseline examinations was not significantly correlated in both sexes. Multiple logistic regression analyses revealed that subjects who reduced their BW by 2 kg or more were 2.56 (95% confidence interval, 1.21-5.42; P =.014) and 8.24 times (95% confidence interval, 3.59-18.9;P <.001)more likely to be in the upper tertile of the delta Adiponectin than those who increased their BW by 2 kg or more in men and women, respectively, independent of their BW at the baseline examinations. In conclusion, we showed here that the delta BW was strongly associated with the delta Adiponectin in both sexes, whereas the BW at the baseline examinations was not associated with the delta Adiponectin, at least in women. (c) 2006 Elsevier Inc. All rights reserved.