Postnatal Changes in Humerus Cortical Bone Thickness Reflect the Development of Metabolic Bone Disease in Preterm Infants

Table 4

Risk factors of decreasing humoral cortical bone thickness in preterm infants at 36–44 weeks of postmenstrual age.

Predictors	Univariate analysis			Multivariate analysis
	Unadjusted OR	95% CI	value	Adjusted OR	95% CI	value
The initial model
Gestational age	0.27	0.09–0.80	0.017	0.00	0.000–	0.560
Birth weight	0.97	0.91–1.04	0.366	0.99	0.87–1.13	0.913
Mechanical ventilation	1.09	1.02–1.17	0.017	2.08	0.00–15971.43	0.873
Total dosage of hydrocortisone	1.04	0.98–1.11	0.188	5.25	0.000–142837759	0.849
The final model
Gestational age				0.27	0.09–0.80	0.017

PMA, postmenstrual age; OR, odds ratio; CI, confidence interval.