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Table 2 Linear regression analysis of log(HDL) on 2,4-D and covariates for ages 20-59, NHANES III, 1988-1994.

From: Perturbation of lipids and glucose metabolism associated with previous 2,4-D exposure: a cross-sectional study of NHANES III data, 1988-1994

Independent variables All available Susceptible subpopulations
  subjects (n = 709) HbA1c > 5.1% T4 ≤ 8.5 μg/dl
   (n = 345) (n = 364)
  Estimate (95% CI) Estimate (95% CI) Estimate (95% CI)
Intercept 4.227 4.107 4.209
  (4.062, 4.391)a (3.871, 4.343)a (3.965, 4.453)a
2,4-D, binary -0.048 -0.015 -0.088
  (-0.101, 0.006) (-0.090, 0.061) (-0.160, -0.016)c
Log (urinary creatinine) -0.027 -0.022 -0.032
  (-0.056, 0.001) (-0.063, 0.019) (-0.074, 0.010)
Gender -0.145 -0.100 -0.145
  (-0.184, -0.105)a (-0.157, -0.043)a (-0.203, -0.085)a
Age (years) 0.001 0.001 0.001
  (-0.002, 0.002) (-0.002, 0.003) (-0.002, 0.003)
Non-Hispanic Black 0.124 0.149 0.154
  (0.078, 0.170)a (0.083, 0.215)a (0.089, 0.219)a
Mexican American -0.032 0.021 -0.017
  (-0.082, 0.017) (-0.053, 0.094) (-0.093, 0.060)
Other ethnicity 0.108 0.176 0.232
  (-0.008, 0.223) (0.025, 0.327)c (0.068, 0.396)b
Past smoker -0.040 -0.011 -0.073
  (-0.092, 0.012) (-0.082, 0.060) (-0.147, 0.001)
Active smoker -0.084 -0.094 -0.097
  (-0.126, -0.041)a (-0.154, -0.034)b (-0.159, -0.035)b
BMI 25-29 kg/m2 -0.178 -0.201 -0.156
  (-0.220, -0.136)a (-0.262, -0.140)a (-0.216, -0.096)a
BMI ≥ 30 kg/m2 -0.230 -0.224 -0.230
  (-0.279, -0.181)a (-0.289, -0.160)a (-0.304, -0.157)a
Alcohol consumption 0.101 0.069 0.125
  (0.034, 0.168)b (-0.022, 0.159) (0.039, 0.210)b
Income ≥ 20K (%) -0.022 -0.024 -0.039
  (-0.061, 0.018) (-0.078, 0.030) (-0.098, 0.019)
Hours of fasting -0.001 -0.001 0.002
  (-0.005, 0.004) (-0.006, 0.006) (-0.004, 0.008)
  1. a p ≤ 0.001, b p ≤ 0.01, c p ≤ 0.05