Table 3.

Medical Care Characteristics, Percentage of Office Visits, NAMCS Data, 1997–2000

Visit Type
Medical Care CharacteristicFP-WR* (n = 326)OP-WR (n = 2,061)OccMed-WR (n = 180)FP-NWR (n = 12,865)
NAMCS = National Ambulatory Medical Care Survey; ICD-9 = International Classification of Diseases, Ninth Revision; FP-WR = visit to family practice physician for work-related condition; OP-WR = visit to non–family practice physician for work-related condition; OccMed-WR = visit to occupational medicine physician for work-related condition; FP-NWR = visit to family practice physician for non–work-related condition; RN = registered nurse; LPN = licensed practical nurse; HMO = health maintenance organization.
* Reference category for comparison.
P <.05
P <.01
§ P <.001
Major reason for visit
    Acute problem55.335.4§48.548.4
    Chronic problem, routine16.920.77.1§22.7
    Chronic problem, flare-up10.
    Presurgery or postsurgery/injury follow-up12.230.4§36.1§2.4§
    Non-illness (eg, routine prenatal, general examination, well-baby)
Patient’s chief complaints and symptoms
    Musculoskeletal symptoms46.550.750.810.3§
    Injury or poisoning28.516.0§25.32.7§
Physician’s diagnosis of patient’s condition (ICD-9 groupings)
    Infectious and parasitic diseases0.§
    Endocrine, nutritional, metabolic, and immune disorders0.§
    Mental disorders1.14.0§1.03.8§
    Diseases of nervous system, sense organs5.
    Diseases of circulatory system1.§
    Diseases of respiratory system1.§
    Diseases of digestive system0.
    Diseases of genitourinary system0.
    Diseases of skin, subcutaneous tissue, hair, nails1.§
    Diseases of musculoskeletal system, connective tissue25.328.928.58.0§
    Symptoms, signs, and ill-defined conditions1.§
    Injury and poisoning54.043.958.86.4§
    Supplementary classification and other diagnoses6.19.85.414.1
Visit was related to a specific injury or poisoning94.189.495.210.2§
    Visit was related to a self-inflicted injury or poisoning0.
    Patient’s condition resulted from an assault2.§
Services provided during visit
    Diagnostic and screening services72.256.6§74.380.8
    Blood pressure reading57.224.2§54.666.7
    Therapeutic and preventive services46.050.368.7§36.7
    Exercise counseling and education14.914.214.913.1
    Injury prevention counseling and education15.413.543.5§2.9§
    Mental health counseling and education0.§
    Surgical procedures4.
Therapy provided during visit
At least 1 drug was prescribed during the visit65.246.7§52.876.3§
Medical professionals seen during the visit
    Physician assistant1.02.70.1§1.7
    Medical/nursing assistant23.215.6§17.925.6
Physician was patient’s regular primary care physician59.213.1§7.9§84.8§
Primary expected source of payment for the visit
    Private insurance16.310.3§0.7§58.3§
    Workers’ compensation73.383.493.8§0.0§
    No charge0.
Care was provided in an HMO setting15.910.210.731.0§
Capitated payment basis for the visit7.
Patient was a new patient19.722.126.58.0§
Patient was referred by another physician/health plan9.631.5§21.13.3
Authorization from insurer was required for care19.640.4§47.0§3.2§
Time spent with physician, mean, min16.119.4§22.0§16.3