Table 2.

Comparison of cytokine and chemokine levels between Gram-negative and Gram-positive human bacterial keratitis.

Cytokine	Gram−ve (pg/ml) Mean [SD] Median [IQR]	Gram+ve (pg/ml) Mean [SD] Median [IQR]	Gram−ve / Gram+ve	p value
IL-1β	82.67 [114.69]	12.40 [21.98]	6.7	0.035
	52.65 [84.00]	2.76 [20.3]	19.1
IFN-γ	58.51 [86.96]	172.76 [351.90]	0.3	1.0
	22.03 [47.58]	29.72 [277.24]	0.7
GM-CSF	10.90 [8.63]	20.64 [38.86]	0.5	0.836
	11.19 [11.92]	2.71 [34.66]	4.1
IL-10	8.78 [11.75]	26.52 [58.57]	0.3	0.628
	4.97 [9.94]	1.47 [43.62]	3.4
IL-12p70	8.80 [8.43]	26.80 [55.88]	0.3	0.836
	6.49 [15.74]	3.42 [41.12]	1.9
IL-2	14.53 [13.80]	9.39 [16.63]	1.5	0.138
	10.24 [17.66]	1.92 [15.44]	5.3
IL-6	599.62 [454.03]	102.43 [201.11]	5.9	0.008
	547.91 [801.66]	20.46 [163.7]	26.8
IL-8	1789.48 [1785.28]	358.50 [620.71]	5.0	0.014
	778.88 [2682.96]	120.18 [533.44]	6.5
TNF-α	18.80 [26.36]	50.12 [103.83]	0.4	0.836
	10.94 [18.26]	8.14 [82.00]	1.3

Gram−ve Gram negative, Gram+ve Gram positive, IQR interquartile range.