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Table 2 Association between diabetic medication use and a diagnosis of lung cancer

From: The effect of metformin and thiazolidinedione use on lung cancer in diabetics

   Lung cancer Control 1 Control 2 P-value
Metformin and/or TZD Any use 41.2 61.0 93.9 <0.001
  >24 months 24.6 55.5 75.1 <0.001
Metformin alone Any use 25.0 30.3 49.5 <0.001
TZD alone Any use 6.5 10.5 9.9 <0.001
Insulin use   26.8   33.9 0.014
Sulfonylurea use   39.1   42.0 0.34
  1. All numbers expressed as % of subjects taking the drugs listed in each category. Control 1 = started the defined medication prior to the diagnosis of lung cancer in the matched case, Control 2 = started the defined medication either prior to or after the diagnosis of lung cancer in the matched case.