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Table 1 National estimates of general and family medicine patient visits (in millions) according to physician provider type.*

From: A comparison of patient visits to osteopathic and allopathic general and family medicine physicians: results from the National Ambulatory Medical Care Survey, 2003–2004

  Physician Provider Type      
  DO MD      
Patient or Visit Characteristic No. % No. % OR† 95% CI Osteopathic PAP‡
Age, yr          
   ≤24 9.0 13.9 57.2 20.7 0.64 0.45 - 0.91 14
   25–44 15.4 23.7 67.9 24.5 0.80 0.60 - 1.06 18
   45–64 23.4 36.1 90.7 32.8 0.95 0.75 - 1.20 21
   ≥65 17.1 26.3 60.8 22.0   ...   22
Sex          
   Female 38.4 59.2 161.2 58.3   ...   19
   Male 26.5 40.8 115.3 41.7 0.99 0.85 - 1.14 19
Race          
   White 59.3 91.4 236.9 85.7   ...   20
   Black 4.6 7.1 28.7 10.4 0.69 0.38 - 1.27 14
   Other 0.9 1.5 10.9 4.0 0.39 0.18 - 0.82 8
Ethnicity          
   Non-Hispanic 61.2 94.3 246.4 89.1   ...   20
   Hispanic 3.7 5.7 30.1 10.9 0.63 0.40 - 1.00 11
Geographic region          
   Northeast 18.0 27.8 34.1 12.3 2.94 1.42 - 6.08 35
   Midwest 20.9 32.2 73.3 26.5 1.79 0.93 - 3.43 22
   South 14.6 22.4 105.9 38.3 0.83 0.41 - 1.67 12
   West 11.4 17.6 63.1 22.8   ...   15
Residence in MSA          
   Yes 57.4 88.5 220.4 79.7   ...   21
   No 7.4 11.5 56.1 20.3 0.43 0.18 - 1.06 12
Episode of care          
   Initial visit 23.6 36.3 108.1 39.1   ...   18
   Follow-up visit 33.0 50.8 113.1 40.9 1.27 0.97 - 1.67 23
   Unknown 8.3 12.9 55.3 20.0 0.74 0.38 - 1.46 13
Major reason for visit          
   Acute problem 30.2 46.5 126.5 45.7   ...   19
   Chronic problem 27.3 42.0 98.0 35.4 0.92 0.69 - 1.22 22
   Preventive care 6.3 9.7 42.7 15.4 0.92 0.45 - 1.86 13
   Other/unknown 1.2 1.8 9.3 3.4 0.53 0.27 - 1.04 11
  1. *Derived from the 2003 and 2004 National Ambulatory Medical Care Survey using population estimates based on patient visit weights. CI denotes confidence interval; DO, osteopathic physician; MD, allopathic physician; MSA, metropolitan statistical area; OR, odds ratio, PAP, population attributable percentage.
  2. †ORs are for the utilization of osteopathic physicians relative to allopathic physicians, and are adjusted for the other patient or visit characteristics in the table.
  3. ‡Osteopathic PAP refers to the percentage of physician visits provided by osteopathic physicians.
  4. §Reference category for OR.