Figure 1.
Flowchart of the study population.
Table 1.
Birth characteristics of infants enrolled in the study by cohort and GA group.
Figure 2.
The median BWSDS of infants treated for ROP.
The BWSDS was calculated according to the Swedish or Canadian growth reference within each GA group.
Table 2.
Association between infant natal characteristics and ROP that required treatment (analyzed using univariate logistic regression analysis).
Figure 3.
BWSDS odds ratio for infants for ROP requiring treatment in relation to immaturity.
The BWSDS was calculated using the Swedish or Canadian growth chart reference for different GA cut-offs.
Table 3.
Association between infant natal characteristics and ROP that required treatment (according to multivariable logistic regression analysis).