| Adjusted odds ratio (95% confidence interval)* | |||||
---|---|---|---|---|---|---|
Characteristic | US Medicare | HealthCore Integrated Research DatabaseSM | ||||
 | Overall | Prior OAD use | No prior OAD use | Overall | Prior OAD use | No prior OAD use |
 | (n = 545,408) | (n = 177,791) | (n = 82,840) | (n = 85,865) | (n = 17,177) | (n = 22,803) |
Number of hemoglobin A1c measurements | Â | Â | Â | Â | Â | Â |
  1 vs. 0 measured | 2.10 (2.04-2.16) | 2.09 (2.02-2.16) | 2.02 (1.91-2.12) | 1.67 (1.56-1.78) | 1.40 (1.27-1.54) | 1.96 (1.77-2.17) |
  2+ vs. 0 measured | 2.93 (2.85-3.01) | 2.87 (2.77-2.97) | 2.95 (2.78-3.12) | 2.33 (2.16-2.51) | 1.91 (1.72-2.12) | 1.96 (1.77-2.17) |
Severity of type 2 diabetes mellitus | Â | Â | Â | Â | Â | Â |
  Cardiovascular | 0.95 (0.93-0.97) | 0.95 (0.93-0.98) | 0.95 (0.90-1.00) | 0.96 (0.88-1.05) | 0.97 (0.86-1.10) | 1.00 (0.76-1.32) |
  Cerebrovascular | 0.90 (0.88-0.93) | 0.92 (0.88-0.95) | 0.87 (0.82-0.94) | 0.92 (0.78-1.09) | 0.93 (0.74-1.17) | 0.90 (0.77-1.06) |
  Metabolic (ketoacidosis, hyperosmolar, coma) | 0.95 (0.87-1.03) | 0.91 (0.82-1.01) | 1.06 (0.89-1.27) | - | - | - |
  Nephropathy | 1.12 (1.09-1.15) | 1.08 (1.05-1.12) | 1.25 (1.18-1.32) | 1.04 (0.93-1.18) | 0.87 (0.75-1.02) | 1.40 (1.14-1.72) |
  Neuropathy | 1.11 (1.08-1.14) | 1.08 (1.05-1.11) | 1.22 (1.15-1.28) | 1.01 (0.92-1.11) | 1.05 (0.92-1.19) | 1.03 (0.87-1.22) |
  Peripheral vascular disease | 0.97 (0.94-1.00) | 0.97 (0.94-1.01) | 0.96 (0.91-1.02) | 1.06 (0.92-1.21) | 0.92 (0.77-1.11) | 1.30 (1.03-1.63) |
  Retinopathy | 1.03 (1.00-1.06) | 1.01 (0.97-1.04) | 1.09 (1.02-1.16) | 1.02 (0.91-1.14) | 0.95 (0.82-1.10) | 1.11 (0.90-1.37) |
  Unspecified additional diabetic complications†| 0.96 (0.92-0.99) | 0.91 (0.82-1.01) | 1.12 (1.04-1.22) | 1.01 (0.89-1.14) | 0.98 (0.83-1.16) | 1.17 (0.93-1.47) |
Diagnoses | Â | Â | Â | Â | Â | Â |
Allergic rhinitis/hay fever | 1.16 (1.12-1.21) | 1.19 (1.13-1.25) | 1.14 (1.05-1.23) | 1.12 (1.00-1.26) | 1.29 (1.09-1.52) | 0.95 (0.78-1.15) |
Asthma | 0.91 (0.87-0.94) | 0.89 (0.85-0.94) | 0.94 (0.87-1.02) | 0.83 (0.72-0.95) | 0.92 (0.76-1.13) | 0.80 (0.63-1.02) |
Chronic obstructive pulmonary disease | 0.92 (0.89-0.95) | 0.92 (0.88-0.95) | 0.89 (0.83-0.95) | 0.93 (0.79-1.08) | 0.88 (0.70-1.09) | 0.93 (0.72-1.21) |
Collagen vascular disease/ autoimmune disorders | 1.01 (0.95-1.08) | 1.05 (0.97-1.14) | 0.93 (0.82-1.06) | 0.90 (0.79-1.03) | 0.94 (0.79-1.12) | 0.82 (0.66-1.03) |
  Rheumatoid arthritis‡ | 1.10 (1.03-1.16) | 1.08 (1.00-1.17) | 1.17 (1.04-1.32) | - | - | - |
  Spondyloarthritis‡ | 1.04 (1.00-1.09) | 1.05 (1.00-1.10) | 1.03 (0.95-1.12) | - | - | - |
Dermatologic disorders | 1.04 (0.99-1.10) | 1.02 (0.96-1.09) | 1.08 (0.98-1.20) | 1.07 (0.93-1.23) | 1.10 (0.90-1.34) | 1.14 (0.90-1.44) |
  Psoriasis‡ | 0.97 (0.88-1.08) | 0.99 (0.87-1.12) | 0.86 (0.70-1.06) | - | - | - |
Hyperlipidemia | 1.11 (1.08-1.14) | 1.11 (1.08-1.15) | 1.11 (1.05-1.17) | 1.17 (1.10-1.24) | 1.17 (1.08-1.27) | 1.11 (1.01-1.22) |
Hypertension | 1.00 (0.97-1.03) | 1.01 (0.97-1.04) | 0.99 (0.93-1.05) | 1.13 (1.07-1.20) | 1.17 (1.08-1.27) | 1.18 (1.07-1.31) |
Infectious diseases | 0.86 (0.79-0.94) | 0.88 (0.79-0.99) | 0.85 (0.71-1.02) | 0.89 (0.79-1.01) | 1.17 (1.08-1.27) | 0.95 (0.78-1.16) |
  Cellulitis‡ | 0.92 (0.88-0.95) | 0.91 (0.87-0.95) | 0.92 (0.85-1.00) | - | - | - |
Malignancy | 0.93 (0.90-0.97) | 0.95 (0.91-0.99) | 0.89 (0.83-0.96) | 1.02 (0.90-1.17) | 1.17 (1.08-1.27) | 1.03 (0.83-1.27) |
Obesity | 0.94 (0.91-0.97) | 0.96 (0.92-0.99) | 0.90 (0.84-0.97) | 0.88 (0.81-0.96) | 0.95 (0.84-1.07) | 0.76 (0.65-0.88) |
Other diseases | - | - | - | 0.92 (0.77-1.09) | 0.94 (0.74-1.20) | 0.93 (0.69-1.24) |
  Alcohol diseases‡ | 0.68 (0.61-0.76) | 0.71 (0.62-0.81) | 0.90 (0.84-0.97) | - | - | - |
Gastrointestinal diseases‡ | 1.01 (0.95-1.06) | 0.98 (0.91-1.05) | 1.07 (0.95-1.20) | - | - | - |
Neurological diseases‡ | 0.76 (0.63-0.93) | 0.86 (0.68-1.08) | 0.53 (0.35-0.82) | - | - | - |
Drugs | Â | Â | Â | Â | Â | Â |
Acetaminophen/paracetamol | 0.97 (0.94-0.99) | 0.97 (0.94-1.00) | 0.96 (0.91-1.01) | 0.97 (0.91-1.04) | 1.02 (0.93-1.12) | 0.87 (0.78-0.98) |
Anti-asthmatic agents | 1.08 (1.05-1.12) | 1.09 (1.05-1.14) | 1.08 (1.01-1.16) | 1.02 (0.93-1.13) | 1.02 (0.88-1.17) | 1.06 (0.89-1.25) |
Antibacterial agents | 1.08 (1.06-1.10) | 1.08 (1.05-1.11) | 1.08 (1.03-1.13) | 1.07 (1.01-1.13) | 1.12 (1.04-1.21) | 0.95 (0.87-1.04) |
Anticonvulsants | 0.89 (0.85-0.93) | 0.91 (0.87-0.96) | 0.81 (0.74-0.90) | 0.96 (0.87-1.06) | 1.01 (0.88-1.16) | 0.89 (0.75-1.07) |
Antihistamines | 1.10 (1.07-1.14) | 1.10 (1.06-1.15) | 1.09 (1.01-1.17) | 1.05 (0.94-1.16) | 1.05 (0.91-1.22) | 1.11 (0.93-1.32) |
Antihyperlipidemic agents | 1.22 (1.19-1.24) | 1.15 (1.12-1.19) | 1.35 (1.29-1.41) | 1.13 (1.07-1.19) | 1.11 (1.03-1.20) | 1.16 (1.06-1.28) |
Antihypertensive agents | Â | Â | Â | Â | Â | Â |
  Angiotensin-converting enzyme inhibitors | 0.98 (0.96-1.01) | 0.96 (0.94-0.99) | 1.00 (0.96-1.05) | 0.97 (0.91-1.02) | 0.92 (0.85-1.00) | 1.01 (0.90-1.12) |
  Angiotensin receptor blockers | 1.39 (1.36-1.43) | 1.32 (1.28-1.36) | 1.59 (1.51-1.68) | 1.22 (1.13-1.31) | 1.07 (0.97-1.19) | 1.44 (1.26-1.65) |
  Beta blockers | 1.04 (1.02-1.06) | 1.05 (1.02-1.08) | 1.02 (0.98-1.07) | 0.99 (0.93-1.06) | 1.10 (1.00-1.20) | 0.86 (0.76-0.97) |
  Calcium channel blockers | 1.02 (0.99-1.04) | 1.01 (0.98-1.04) | 1.02 (0.97-1.07) | 0.97 (0.90-1.04) | 1.04 (0.94-1.14) | 0.86 (0.76-0.99) |
  Loop diuretics | 1.10 (1.07-1.13) | 1.09 (1.05-1.12) | 1.13 (1.07-1.20) | 0.94 (0.83-1.06) | 0.92 (0.79-1.08) | 0.99 (0.80-1.22) |
  Other antihypertensive agents | 1.11 (1.07-1.14) | 1.11 (1.07-1.15) | 1.09 (1.02-1.17) | 1.06 (0.94-1.20) | 1.05 (0.96-1.16) | 0.99 (0.79-1.24) |
  Thiazidediuretics | 1.14 (1.11-1.17) | 1.14 (1.11-1.18) | 1.14 (1.08-1.21) | 0.99 (0.93-1.07) | 1.05 (0.96-1.16) | 0.83 (0.73-0.95) |
Anti-infective agents | - | - | - | 1.04 (0.95-1.14) | 1.00 (0.88-1.14) | 1.01 (0.86-1.18) |
  Antifungals‡ | 1.10 (1.06-1.14) | 1.06 (1.02-1.10) | 1.21 (1.13-1.30) | - | - | - |
  Antivirals‡ | 1.09 (1.02-1.16) | 1.10 (1.02-1.19) | 1.07 (0.93-1.23) | - | - | - |
Antiplatelet/anticoagulant agents | 0.94 (0.86-1.02) | 0.97 (0.87-1.07) | 0.91 (0.75-1.10) | 0.98 (0.88-1.10) | 0.98 (0.84-1.13) | 1.07 (0.87-1.32) |
  Clopidogrel†| 1.13 (1.10-1.17) | 1.12 (1.08-1.16) | 1.18 (1.11-1.26) | - | - | - |
  Warfarin†| 0.96 (0.92-0.99) | 0.99 (0.94-1.04) | 0.85 (0.78-0.93) | - | - | - |
Non-steroidal anti-inflammatory agents | 1.06 (1.03-1.09) | 1.05 (1.02-1.09) | 1.09 (1.03-1.15) | 1.02 (0.95-1.10) | 1.05 (0.94-1.16) | 0.99 (0.87-1.12) |
Other medications | 1.06 (1.01-1.12) | 1.08 (1.01-1.15) | 1.08 (0.96-1.22) | 0.88 (0.81-0.96) | 0.83 (0.75-0.93) | 0.99 (0.85-1.14) |
  Allopurinol‡ | 1.05 (1.01-1.10) | 1.06 (1.00-1.11) | 1.07 (0.97-1.18) | - | - | - |
  Anti-arrhythmics‡ | 0.99 (0.96-1.02) | 0.99 (0.95-1.02) | 1.00 (0.94-1.08) | - | - | - |
Immune modulators/ suppressants‡ | 1.05 (1.00-1.10) | 1.01 (0.95-1.07) | 1.16 (1.04-1.28) | - | - | - |
  Nitroglycerin‡ | 0.98 (0.94-1.03) | 0.97 (0.92-1.03) | 1.01 (0.92-1.13) | - | - | - |
  Urinary anti-spasmodics‡ | 1.03 (0.98-1.07) | 1.03 (0.98-1.09) | 1.05 (0.96-1.16) | - | - | - |
Psychotropic agents | 0.93 (0.91-0.95) | 0.92 (0.89-0.94) | 0.92 (0.87-0.96) | 0.94 (0.88-1.00) | 0.95 (0.87-1.04) | 0.87 (0.77-0.97) |