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Table 2 Average number and associated standard error of inpatient hospital days, outpatient costs, and associated indirect costs incurred due to lost productivity by caregivers of preterm infants from age 2–10, stratified by gestational age at birth and current age

From: The economic burden of prematurity in Canada

  Early preterm infants (<28 weeks)
Inpatient days Outpatient costs
  Mean Standard error Mean Standard error
Discharge-Age 2 17.45 3.32 2403.02 223.01
Age 2 0.89 0.21 336.17 24.82
Age 3 0.65 0.20 280.46 22.61
Age 4 0.42 0.13 271.14 32.03
Age 5 0.50 0.19 234.18 25.90
Age 6 0.32 0.09 223.13 26.59
Age 7 0.45 0.20 212.22 27.18
Age 8 0.24 0.08 193.54 28.88
Age 9 0.04 0.02 110.47 9.07
  Moderately preterm infants (28–32 weeks)
Inpatient days Outpatient costs
  Mean Standard error Mean Standard error
Discharge-Age 2 8.75 1.27 1453.34 102.99
Age 2 1.60 0.80 277.79 16.29
Age 3 0.50 0.13 230.30 14.57
Age 4 0.35 0.08 191.50 8.69
Age 5 0.39 0.09 195.20 8.35
Age 6 0.24 0.04 163.56 7.65
Age 7 0.22 0.06 155.44 10.27
Age 8 0.19 0.05 142.84 9.50
Age 9 0.09 0.02 123.19 6.80
  Late preterm infants (33–36 weeks)
Inpatient days Outpatient costs
  Mean Standard error Mean Standard error
Discharge-Age 2 2.40 0.17 734.14 12.87
Age 2 0.40 0.04 220.42 220.42
Age 3 0.26 0.02 182.21 182.21
Age 4 0.20 0.01 165.21 165.21
Age 5 0.16 0.01 154.99 154.99
Age 6 0.20 0.06 133.59 133.59
Age 7 0.17 0.03 122.36 122.36
Age 8 0.10 0.01 109.91 109.91
Age 9 0.10 0.02 107.13 107.13