Table 2

Binary logistic regression model predictors HbA1c >6.5% NHANES 2003 to 2010

Variable2003 to 2004
exp (B), 95% CI
2005 to 2006
exp (B), 95% CI
2007 to 2008
exp (B), 95% CI
2009 to 2010
exp (B), 95% CI
25OHD0.983 (0.978 to 0.987)*
0.980 (0.975 to 0.985)†
0.985 (0.979 to 0.990)‡
0.974 (0.968 to 0.980)*
0.970 (0.964 to 0.976)†
0.976 (0.969 to 0.982)‡
0.986 (0.982 to 0.990)*
0.984 (0.980 to 0.988)†
0.989 (0.984 to 0.993)‡
0.988 (0.985 to 0.992)*
0.984 (0.980 to 0.987)†
0.988 (0.984 to 0.991)‡
BMI1.069 (1.054 to 1.084)*
1.091 (1.074 to 1.109) †
1.078 (1.061 to 1.096)‡
1.073 (1.059 to 1.088)*
1.092 (1.076 to 1.109)†
1.079 (1.063 to 1.096)‡
1.078 (1.065 to 1.092)*
1.097 (1.083 to 1.112)†
1.089 (1.074 to 1.105)‡
1.078 (1.066 to 1.090)*
1.095 (1.082 to 1.109)†
1.088 (1.074 to 1.101)‡
  • p<0.0001.

  • *Univariate model.

  • †Controlled for age, sex and race.

  • ‡Multivariate model controlled for age, sex, race and BMI.

  • BMI, body mass index; HbA1c, haemoglobin A1c; NHANES, National Health and Nutrition Examination Survey; 25OHD, 25-hydroxyvitamin D.