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Characteristics and Quality of Papanicolaou Smears Obtained by Primary Care Clinicians Using a Single Commercial Laboratory
Peter Curtis, MD;
Melanie Mintzer, MD;
Daphne Morrell, MSPH;
Jacqueline C. Resnick, BS;
Selinde Hendrix, BA;
Bahjat F. Qaqish, PhD
Arch Fam Med. 1999;8:407-413.
Background Few data are available on factors associated with the quality of Papanicolaou smears performed in primary care.
Objective To identify the patterns and proficiency of cervical cancer screening among different primary care specialties.
Materials and Methods Clinical and cytologic data from 21,833 Papanicolaou smears, submitted to a single large commercial laboratory by 176 clinicians during a 7-month period, were correlated with individual clinician and specialty characteristics according to indexes of specimen quality.
Results Obstetrician-gynecologists, nurse practitioners, and physician assistants provided screening to a younger population of women compared with family physicians, internists, and general practitioners. Factors positively associated with a greater probability of a "satisfactory" smear or the presence of endocervical cells (as a marker of adequate sampling) were increasing patient age, use of the cytobrush, and the specialty of the obstetrician-gynecologist. Satisfactory smears were not associated with any increased identification of cytologic abnormalities compared with "limited" smears. In contrast, smears with endocervical cells showed a higher proportion of abnormalities compared with specimens without such cells.
Conclusions Differences in the performance of obtaining Papanicolaou smears exist between primary care specialties, but need further clarification. The use of the cytobrush and the presence of endocervical cells are criteria that reflect clinician proficiency more realistically than the laboratory criterion of satisfactory smear.
From the Department of Family Medicine (Drs Curtis and Mintzer); the Departments of Maternal and Child Health (Mss Morrell and Hendrix) and Biostatistics (Dr Qaqish), School of Public Health; and the Office of the Vice Provost for Graduate Studies and Research (Ms Resnick), University of North Carolina at Chapel Hill.
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