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. Author manuscript; available in PMC: 2010 Apr 1.
Published in final edited form as: Open Health Serv Policy J. 2009 Jan 1;2:57–70. doi: 10.2174/1874924000902020057

Table 1.

Characteristics of Visits to Office-Based Primary Care Physicians and Hospital Outpatient General Medicine and Gynecology Clinics by Women Ages 40 Years and Older, National Ambulatory Medical Care Survey and National Hospital Ambulatory Medical Care Survey, 2001–2003

Visits to Office-Based Primary Care Physicians Visits to Hospital Outpatient Clinics
na %a na %a
Total 8,756 100 17,067 100
Predisposing Factors
 Patient Age (yrs)
  40–49 2,464 26.9 5,456 31.1
  50–59 2,136 24.1 4,504 26.0
  60–69 1,544 17.7 3,389 19.5
  ≥ 70 2,612 31.3 3,718 23.4
 Patient Race
  White only 7,694 86.3 12,529 76.6
  Black only 802 10.4 3,912 20.1
  Asian/Pacific Islander only 260 3.3 626 3.3
 Patient Ethnicity
  Hispanic 537 8.1 2,154 12.6
  Not Hispanic 6,879 75.7 13,182 77.5
  Missing 1,340 16.2 1,731 9.9
 Reason for visit
  Chronic problem 3,533 41.3 7,829 45.1
  Acute problem 3,378 37.6 6,043 38.6
  Preventive care 1,510 16.9 2,265 11.7
  Missing 335 4.3 930 4.6
Enabling Factors
 Expected source of payment
  Medicare 2,846 33.4 4,735 28.5
  Medicaid 466 5.0 3,357 16.3
  Private 4,585 52.4 5,255 35.1
  Other 217 2.3 825 4.4
  Self/uninsured 395 4.1 1,999 10.9
  Missing/unknown 247 2.9 896 4.7
 # of visits in prior 12 mosb
  New patient 484 5.5 2,119 10.7
  0 573 6.6 852 4.5
  1–2 2,235 25.3 3,943 23.3
  3–5 2,674 30.4 3,988 24.0
  ≥ 6 2,360 26.9 4,651 28.9
  Missing 430 5.2 1,514 8.6
 Time spent with physician NA
  < 15 minutes 2,030 24.1
  15–<30 minutes 5,213 59.4
  ≥ 30 minutes 1,513 16.5
Reinforcing Factors
 Physician age (yrs) NA
  < 45 3,146 36.3
  45–54 3,393 38.5
  ≥ 55 2,217 25.2
 Physician gender NA
  Male 6,604 75.3
  Female 2,152 24.7
 PCP status
  PCP for that patient 6,508 75.7 6,962 46.1
  Not PCP for that patient 1,777 18.9 8,319 43.4
  Missing 471 5.4 1,786 10.5
 Physician specialty NA
  Internal Medicine 2,534 39.6
  General/family practice 4,734 45.2
  Obstetrics and gynecology 1,488 15.1
 Clinic type NA
  General Medicine 14,492 93.1
  Obstetrics and gynecology 2,575 6.9
 Solo vs group practice NA
  Solo 3,313 39.2
  Group 5,443 60.8
 MSAc
  MSA 6,914 81.7 14,733 77.5
  Non-MSA 1,842 18.3 2,334 22.5
 Geographic region
  Northeast 1,760 24.5 4,930 25.8
  Midwest 2,185 21.1 5,205 25.8
  South 2,873 33.1 4,461 37.2
  West 1,938 21.3 2,471 11.1
a

Percentages were calculated using weighted national survey estimates. Ns are unweighted. Unweighted data from the NAMCS and NHAMCS are not nationally representative and are included merely as indicators of sample size.

b

Does not include index visit.

c

MSA = metropolitan statistical area.

NA = not available.