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. 2014 Jul;52(7):2573–2582. doi: 10.1128/JCM.00700-14

TABLE 2.

The heterogeneity and pooled correct identification ratios by subgroup analyses

Subanalysis No. of isolates (no. of studies) Within-group heterogeneity
Correct identification ratio (95% CI)a P comparison with overall ratio (χ2 value)
P (Q value) I2 (95% CI [%])
Category of strains
    Yeasts 8,842 (27) <0.0001 (291.38) 91.1 (88.2–93.2) 0.959 (0.943–0.973) 0.129 (2.309)
    Molds 1,135 (8) <0.0001 (45.71) 84.7 (71.6–91.7) 0.934 (0.888–0.969) 0.002 (9.961)
Systems
    Andromas 2,130 (4) <0.0001 (33.68) 91.1 (80.3–96.0) 0.972 (0.936–0.994) <0.001 (13.202)
    Biotyper 7,289 (24) <0.0001 (303.10) 92.4 (89.9–94.3) 0.954 (0.933–0.971) 0.725 (0.124)
    Saramis 1,926 (6) <0.0001 (63.71) 92.2 (85.7–95.7) 0.938 (0.881–0.978) 0.001 (10.477)
    Vitek MS 1,818 (4) <0.0001 (31.79) 90.6 (78.9–95.8) 0.933 (0.887–0.968) <0.001 (16.923)
Source of strains
    Clinical isolates only 9,549 (29) <0.0001 (332.42) 91.6 (89.0–93.5) 0.950 (0.932–0.965) 0.097 (2.755)
    Clinical isolates plus reference strains 428 (4) 0.0304 (8.92) 66.4 (1.5–88.5) 0.988 (0.960–1.000) 0.001 (10.962)
System database
    Commercial database only 8,527 (25) <0.0001 (282.37) 91.5 (88.7–93.6) 0.955 (0.937–0.970) 0.988 (0)
    Commercial database plus self-established database 1,450 (8) <0.0001 (63.44) 89.0 (80.6–93.7) 0.955 (0.916–0.983) 0.962 (0.002)
Modified outcomes
    All systems 3,366 (11) 0.0003 (32.41) 69.1 (42.4–83.5) 0.987 (0.978–0.994) <0.001 (73.927)
    Biotyper 2,501 (8) 0.1269 (11.28) 37.9 (0–72.6) 0.992b (0.987–0.995) <0.001 (74.183)
a

Random-effects pooled ratios, except where noted otherwise.

b

Fixed-effect pooled ratio.