Table 4.

Risk factors for SNDO

Variable	Unadjusted OR and 95% CI	P value	Adjusted OR and 95% CI	P value
Gestational age at birth (≥37 weeks)	1.07 (0.53 to 2.19)	0.840	1.54 (0.65 to 3.63)	0.321
Birthweight z scores	0.64 (0.47 to 0.89)	0.008*	0.69 (0.49 to 0.98)	0.038*
Female gender	0.71 (0.36 to 1.39)	0.313	0.53 (0.24 to 1.16)	0.112
No of episodes of hypoglycaemia (<2.6 mmol/L)	1.06 (0.75 to 1.49)	0.730	0.98 (0.60 to 1.58)	0.923
General anaesthesia (>3 episodes)	3.31 (1.29 to 8.50)	0.013*	0.77 (0.17 to 3.59)	0.745
Preoperative CRP levels	0.90 (0.59 to 1.37)	0.627	0.92 (0.60 to 1.40)	0.698
CRP levels within 72 hours of surgery	0.90 (0.63 to 1.28)	0.555	1.06 (0.69 to 1.62)	0.769
CRP levels after 72 hours of surgery	0.64 (0.41 to 1.01)	0.053	0.99 (0.63 to 1.56)	0.985
Any infection	1.20 (0.49 to 2.96)	0.683	0.44 (0.11 to 1.77)	0.247
Cumulative duration of antibiotics	1.05 (1.01 to 1.10)	0.043*	1.00 (0.91 to 1.10)	0.990
Degree of postnatal growth restriction	2.00 (0.59 to 6.81)	0.265	1.56 (0.62 to 3.97)	0.348
Length of stay	1.02 (1.00 to 1.03)	0.003*	1.03 (1.00 to 1.06)	0.034*

*Statistically significant associations

CRP, C reactive protein.