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Br J Ophthalmol 86:1122-1126 doi:10.1136/bjo.86.10.1122
  • Original Article
    • Clinical science

Incidence of ROP in two consecutive Swedish population based studies

Table 4

Stepwise logistic regression analysis of risk factors for ROP

Log odds ratio (b) Standard error of b Odds ratio 95% CI of odds ratio
*Odds ratio for a decrease of 1 week in gestational age.
†Odds ratio for a reduction of 100 g in birth weight.
Gestational age at birth −0.5809 0.1183 1.788* 1.418 to 2.254
Birth weight −0.00243 0.000916 1.275† 1.065 to 1.526

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