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Table 2 Number of opportunities for intervention identified and documented among patients presenting at GP clinics (N = 600).

From: Documentation of preventive screening interventions by general practitioners: a retrospective chart audit

Intervention Criteria for determining patient eligibility* Patients eligible for intervention in 2004 Documented need for intervention in 1 year (2004) Documented need for intervention in prior 3 years (2002--2004)
Mammography for breast cancer Biannual screening --for women aged 50 -- 69 years 142 40(28.2%) 61(43.0%)
Papanicolaou smear for cervical cancer Screen sexually active women at least every 3 years 399 59(14.8%) 99(24.8%)
Cholesterol measurement Patients over 30 years of age, who either smoke, have hypertension, or diabetes mellitus. 233 94(40.3%) 157(67.4%)
Influenza vaccination Patients over 65 years of age 114 17(14.9%) 35(30.7%)
Pneumococcal vaccination Vaccination every 6 years of selected high risk populations
Patients over 65 years of age
114 1(0.9%) 2(1.8%)
Smoking cessation Advise smokers to quit or refer to smoking cessation counseling programs 99 3(3.0%) 19(9.2%)
Documented Inappropriate screening for PSA and DRE
Prostate specific antigen test for prostate cancer (PSA) Men over 50 years of age (not required) 106 8(7.5%) 35(33.0%)
Digital rectal examination (DRE) for prostate cancer Annual examination for men over 50 years of age (not required) 106 20(18.9%) 47(44.3%)
  1. *Criteria used to identify opportunities for preventive intervention based on recommendations of the Canadian Task Force on the periodic Health Examination [6], the American College of Physicians [7] and the Canadian Cancer Society [8].
  2. Sexual activity not defined -- all women considered
  3. The Canadian Task Force recommends that PSA and DRE not be performed