Table 6– Unadjusted and adjusted mean total costs (GBP) according to lower respiratory tract infection (LRTI) status
Subjects nUnadjusted mean difference#95% CI for differenceAdjusted mean difference95% CIfor differenceAdjusted mean difference+95% CI for difference
No LRTI74Reference groupOverall p=0.001Overall p=0.040Overall p=0.045
RV LRTI20108654–2019323-441–1087278-448–1005
RSV LRTI17678-141–1497151-655–957172-631–975
RV/RSV LRTI1270352497–1157358511789–991257691711–9828

  • RV: rhinovirus; RSV: respiratory syncytial virus. #: difference in means between the reference group and each other group in turn; : adjustment for birthweight, gestational age, antenatal steroid use and surfactant use; +: adjustment for birthweight, gestational age, antenatal steroid use, surfactant use and bronchopulmonary dysplasia.