TABLE 3

Performance of RADT and Office BAP Culture in POLs

CategoryEstimate (95% CI), %P Comparing Sensitivitiesa
SensitivitySpecificityAccuracy
All patients (30% criterion-positive)
    RADT (n = 1843)69.6 (65.6–73.4)97.8 (96.8–98.5)89.3 (87.9–90.7)<.001
    Office BAP culture (n = 1842)80.8 (77.3–84.1)96.8 (95.7–97.7)92.1 (90.9–93.3)
Office A (29% criterion-positive)
    RADT (n = 347)65.7 (55.6–74.8)98.4 (95.9–99.6)88.8 (85.5–92.1).25
    Office BAP culture (n = 348)70.6 (60.8–79.2)98.8 (96.5–99.8)90.5 (87.4–93.6)
Office B (27% criterion-positive)
    RADT (n = 279)60.5 (48.7–71.6)99.0 (96.5–99.9)88.5 (84.8–92.2)<.001
    Office BAP culture (n = 279)80.3 (69.5–88.5)94.1 (89.9–96.9)90.3 (86.8–93.8)
Office C (21% criterion-positive)
    RADT (n = 303)74.6 (62.1–84.7)97.1 (94.1–98.8)92.4 (89.4–95.4).002
    Office BAP culture (n = 304)90.5 (80.4–96.4)95.0 (91.5–97.4)94.1 (91.5–96.7)
Office D (31% criterion-positive)
    RADT (n = 326)80.2 (71.1–87.5)97.3 (94.3–99)92.0 (89.1–94.9).74
    Office BAP culture (n = 324)79.6 (70.3–87.1)98.7 (96.2–99.7)92.9 (90.1–95.7)
Office E (36% criterion-positive)
    RADT (n = 289)69.5 (59.8–78.1)99.5 (97.0–99.9)88.6 (84.9–92.3)<.001
    Office BAP culture (n = 288)87.4 (79.4–93.1)96.2 (92.4–98.5)93.1 (90.2–96.0)
Office F (35% criterion-positive)
    RADT (n = 299)67.0 (57.2–75.8)95.3 (91.3–97.9)85.3 (81.3–89.3).004
    Office BAP culture (n = 299)80.2 (71.3–87.3)97.9 (94.8–99.4)91.6 (88.5–94.7)
  • The concurrent hospital laboratory BAP culture was used as the criterion standard.

  • a McNemar's test was used. Specificities of the RADT and office BAP culture also were compared but did not differ statistically overall or in any office.