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Table 3 Association of urinary iodine with DR

From: Iodine nutrition status and its association with microvascular complications in urban dwellers with type 2 diabetes

Urinary iodine Adequate Low More than adequate Excessive
Non-proliferative DR
 Prevalence, % 16.5 16.1 21.2 13.1
 Odds Ratio
  Model 1 1.0 (Ref.) 1.03 (0.84–1.26) 0.73 (0.54–0.99)* 1.31 (0.83–2.05)
  Model 2 1.0 (Ref.) 0.99 (0.80–1.23) 0.73 (0.53–1.00) 1.34 (0.83–2.15)
Proliferative DR
 Prevalence, % 0.4 0.5 1.0 0.5
 Odds Ratio
  Model 1 1.0 (Ref.) 0.77 (0.23–2.53) 0.35 (0.08–1.49) 0.69 (0.08–5.98)
  Model 2 1.0 (Ref.) 0.71 (0.22–2.38) 0.35 (0.08–1.51) 0.83 (0.09–7.26)
  1. *P < 0.05
  2. Data are expressed as odds ratios (95%CI). Logistic regression analyses were used for the association of urinary iodine with DR.
  3. Model 1 was unadjusted
  4. Model 2 was adjusted for age, sex, education, current smokers, BMI, HbA1C, duration of diabetes, dyslipidemia, TSH and FT4
  5. Urinary iodine concentrations: low, < 100 μg/L; adequate, 100 to < 200 μg/L; more than adequate, 200 to < 300 μg/L; excessive, ≥300 μg/L