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Table 3 Results of the regression analysis for the cumulative number of days spent in hospital in early childhood

From: Impact of birthweight on health-care utilization during early childhood – a birth cohort study

 

RR [95% CI]

Natural logarithm of observation time measured in continuous years

0.78 [0.77, 0.79]

Weight group * perinatal hospitalization (reference: Reference group without perinatal hospitalization)

 VLBW with perinatal hospitalization

3.92 [3.63, 4.23]

 LBW without perinatal hospitalization

1.31 [1.21, 1.42]

 LBW with perinatal hospitalization

2.34 [2.25, 2.44]

 Reference group with perinatal hospitalization

1.49 [1.46, 1.53]

Sex (reference: female)

1.31 [1.29, 1.33]

Area (reference: urban)

1.37 [1.35, 1.40]

  1. Shown are the results of the negative-binomial regression (n = 84,343), all p-values < 0.001