Table 4.

Mean, Standard Deviation, Median, and Range of Zone Diameters (mm) for Essential Oils Against Gram-Negative, Carbapenem-Resistant Clinical Isolates

Species (n)OreganoThymeManukaCloveTea TreeThievesMeropenem
Klebsiella pneumoniae (13)Cinnamon Bark
Mean (SD)19.7 (3.57)16.2 (3.16)21.2 (1.54)6.0 (0)12.8 (0.63)14.7 (1.93)12.1 (1.04)10.8 (2.35)
Median, range20, 1215, 1221, 520, 46, 015, 812, 511, 8
Enterobacter spp (4)
Mean (SD)20.0 (0)16.8 (2.36)21.3 (1.50)6.0 (0)9.0 (2.58)15.3 (1.26)10.5 (1.92)11.3 (2.36)
Median, range20, 016, 521, 36, 09, 615, 311, 416, 5
Pseudomonas aeruginosa (11)
Mean (SD)9.2 (10.23)9.2 (10.23)18.0 (8.12)6.7 (2.41)7.5 (4.82)6.7 (2.10)8.7 (5.06)6.7 (1.10)
Median, range6, 346, 3416, 296, 86, 166, 76, 176, 3
Species (n)OreganoThymeManukaCloveTea TreeThievesMeropenem
Klebsiella pneumoniae (13)Cinnamon Bark
Mean (SD)19.7 (3.57)16.2 (3.16)21.2 (1.54)6.0 (0)12.8 (0.63)14.7 (1.93)12.1 (1.04)10.8 (2.35)
Median, range20, 1215, 1221, 520, 46, 015, 812, 511, 8
Enterobacter spp (4)
Mean (SD)20.0 (0)16.8 (2.36)21.3 (1.50)6.0 (0)9.0 (2.58)15.3 (1.26)10.5 (1.92)11.3 (2.36)
Median, range20, 016, 521, 36, 09, 615, 311, 416, 5
Pseudomonas aeruginosa (11)
Mean (SD)9.2 (10.23)9.2 (10.23)18.0 (8.12)6.7 (2.41)7.5 (4.82)6.7 (2.10)8.7 (5.06)6.7 (1.10)
Median, range6, 346, 3416, 296, 86, 166, 76, 176, 3

Abbreviations: SD, standard deviation.

Table 4.

Mean, Standard Deviation, Median, and Range of Zone Diameters (mm) for Essential Oils Against Gram-Negative, Carbapenem-Resistant Clinical Isolates

Species (n)OreganoThymeManukaCloveTea TreeThievesMeropenem
Klebsiella pneumoniae (13)Cinnamon Bark
Mean (SD)19.7 (3.57)16.2 (3.16)21.2 (1.54)6.0 (0)12.8 (0.63)14.7 (1.93)12.1 (1.04)10.8 (2.35)
Median, range20, 1215, 1221, 520, 46, 015, 812, 511, 8
Enterobacter spp (4)
Mean (SD)20.0 (0)16.8 (2.36)21.3 (1.50)6.0 (0)9.0 (2.58)15.3 (1.26)10.5 (1.92)11.3 (2.36)
Median, range20, 016, 521, 36, 09, 615, 311, 416, 5
Pseudomonas aeruginosa (11)
Mean (SD)9.2 (10.23)9.2 (10.23)18.0 (8.12)6.7 (2.41)7.5 (4.82)6.7 (2.10)8.7 (5.06)6.7 (1.10)
Median, range6, 346, 3416, 296, 86, 166, 76, 176, 3
Species (n)OreganoThymeManukaCloveTea TreeThievesMeropenem
Klebsiella pneumoniae (13)Cinnamon Bark
Mean (SD)19.7 (3.57)16.2 (3.16)21.2 (1.54)6.0 (0)12.8 (0.63)14.7 (1.93)12.1 (1.04)10.8 (2.35)
Median, range20, 1215, 1221, 520, 46, 015, 812, 511, 8
Enterobacter spp (4)
Mean (SD)20.0 (0)16.8 (2.36)21.3 (1.50)6.0 (0)9.0 (2.58)15.3 (1.26)10.5 (1.92)11.3 (2.36)
Median, range20, 016, 521, 36, 09, 615, 311, 416, 5
Pseudomonas aeruginosa (11)
Mean (SD)9.2 (10.23)9.2 (10.23)18.0 (8.12)6.7 (2.41)7.5 (4.82)6.7 (2.10)8.7 (5.06)6.7 (1.10)
Median, range6, 346, 3416, 296, 86, 166, 76, 176, 3

Abbreviations: SD, standard deviation.

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