Journal:

Article Title: Comparison of the BACTEC MGIT 960 and ESP Culture System II for Growth and Detection of Mycobacteria

doi:

Figure Lengend Snippet: Times to detection of mycobacteria a

Article Snippet: For the 40 MTBC isolates recovered by both BACTEC MGIT 960 and ESP II, the mean times to detection were 11.9 days (range, 5 to 20 days) for MGIT and 17.4 days (range, 3 to 32 days) for ESP II ( P < 0.05). table ft1 table-wrap mode="anchored" t5 TABLE 3 caption a7 Organisms System (no. of isolates detected) Mean no. of days to detection (range) b % Detected by day: All Smear positive c Smear negative d 7 14 21 28 35 42 All mycobacteria BACTEC MGIT 960 (149) 13.1 (1–43) 10.5 (1–37) 14.8 (1–43) 31 67 83 90 95 99 ESP II (166) 16.9 (2–45) 13.1 (2–33) 18.3 (2–45) 15 44 65 75 90 99 Middlebrook agar (144) 19.2 (5–56) 16.6 (6–56) 21.0 (5–41) 7 28 71 87 93 99 MTBC BACTEC MGIT 960 (55) 12.8 (5–26) 11.1 (5–26) 14.1 (5–22) 15 69 95 100 ESP II (48) 18.7 (3–39) 15.1 (3–31) 24.4 (3–39) 6 27 69 83 98 100 Middlebrook agar (57) 19.2 (6–56) 16.5 (6–56) 22.3 (8–40) 4 35 74 91 93 98 Open in a separate window a Media were routinely incubated for 6 weeks; some cultures were incubated for up to 8 weeks due to special circumstances. b Difference between BACTEC MGIT 960 and ESP II times to detection for those specimens positive for any mycobacteria and for MTBC by both systems was statistically significant ( P < 0.05, Student's t test). c Numbers of MTBC smear-positive specimens for BACTEC MGIT 960, ESP II, and Middlebrook agar were 27, 26, and 31, respectively. d Numbers of MTBC smear-negative specimens for BACTEC MGIT 960, ESP II, and Middlebrook agar were 28, 22, and 26, respectively.

Techniques: