Incidence and Risk Factors of Intraocular Foreign Body-Related Endophthalmitis in Southern China

Table 3

Associations between intraocular foreign body characteristics and endophthalmitis by logistic regression.

Factors	Univariate regression		Multiple regression
	Regression coefficient mean (95% CI)	value	Regression coefficient mean (95% CI)	value
Age	0.01 (0.00 to 0.02)	0.02	0.01 (0.00 to 0.02)	0.01
Gender	−0.12 (−0.61 to 0.37)	0.63	—	—
No. of IOFB			—	—
1	Reference
≥2	−0.19 (−0.69 to 0.30)	0.44
Timing of primary repair			—	—
<24 h	Reference
≥24 h	0.15 (−0.10 to 0.41)	0.25
Site of laceration
Cornea	Reference		Reference
Sclera	−0.30 (−0.64 to 0.04)	0.08	−0.33 (−0.68 to 0.02)	0.07
Corneosclera	−0.15 (−0.57 to 0.27)	0.48	−0.08 (−0.50 to 0.35)	0.73
IOFB location
Wall of eyeball	−0.72 (−1.36 to −0.08)	0.03	−0.70 (−1.37 to −0.04)	0.04
Anterior chamber	−0.01 (−0.43 to 0.41)	0.96	−0.07 (−0.54 to 0.40)	0.78
Crystalline lens	−1.91 (−3.32 to −0.49)	0.01	−1.98 (−3.41 to −0.56)	0.01
Vitreous cavity	Reference		Reference
Perforation	−0.43 (−1.08 to 0.22)	0.19	−0.37 (−1.04 to 0.29)	0.27
Material of IOFB
Metal	Reference		Reference
Glass/plastic	−1.26 (−2.27 to −0.24)	0.02	−1.14 (−2.17 to −0.10)	0.03
Eyelash	0.14 (−0.53 to 0.81)	0.68	0.25 (−0.48 to 0.97)	0.51
Plant	0.64 (−0.24 to 1.51)	0.16	1.04 (0.11 to 1.97)	0.03
Else	0.05 (−0.36 to 0.46)	0.81	0.13 (−0.30 to 0.55)	0.56
Coexistence	1.07 (0.19 to 1.95)	0.02	1.10 (0.21 to 1.99)	0.02
Maximum Size of IOFB			—	—
<3	−0.15 (−0.48 to 0.18)	0.39
≥3 to 5	Reference
≥5 to 10	0.08 (−0.29 to 0.45)	0.69
≥10	−0.19 (−0.67 to 0.28)	0.43

IOFB: intraocular foreign body.