Tables
- TABLE 1
Comparison of demographic details of the two cohorts, 2004–2006 and 2008–2010
2004–2006 2008–2010 p-value Subjects 16 44 Birthweight g 720 (480–1000) 755 (410–1300) 0.564# Gestation weeks 25 (23–29) 26 (23–29) 0.358# Male 10 (62.5) 23 (52.3) 0.481¶ Data are presented as n, median (range) or n (%), unless otherwise stated. #: Mann–Whitney U-test; ¶: Chi-squared.
- TABLE 2
Comparison of outcomes between the two cohorts, 2004–2006 and 2008–2010
2004–2006 2008–2010 p-value Time in oxygen months# 15 (0–66) 5 (2–24) 0.01 Total hospital readmissions 1 (0–17) 1 (0–5) 0.365 Total respiratory-related readmissions 1 (0–8) 1 (0–5) 0.948 Length of respiratory admissions days 4.5 (0–263) 5 (0–105) 0.717 Total emergency department attendances 0 (0–1) 1 (0–6) 0.05 Data are presented as median (range), unless otherwise stated. #: one infant in each group had insufficient data on the length of time in long-term oxygen therapy, so were excluded from analysis.
- TABLE 3
Statistics of last oximetry study prior to discontinuing oxygen
SpO2% 96 (95–97.5) Minimum SpO2% 93 Drops of ≥4% per hour 3.8 (2.2–5.3) Percentage of total study time with SpO2 <90% 0.56 (0.19–0.94) SpO2 <90% 2 min 29 s (1 min 14 s to 5 min 15 s) Data are presented as median (interquartile range), unless otherwise stated. SpO2: arterial oxygen saturation measured by pulse oximetry.
- TABLE 4
Comparison of duration of home oxygen therapy
First author [ref.] Cases n Flow rates L·min−1 Saturation target Duration months Saletti [9] 93 0.06 (0.03–0.5) 92–98% Daytime 1 (0–13); night-time 2 (0–13) Hudak [17] 30 0.125–0.5 ≥95% 4.5 (0.5–17) Bertrand [18] 20 NA NA 5.7±3# Silva [19] 56 0.125 (0.03–0.85)
5% in >0.3≥95% Daytime 3 (1–23.5); night-time 5 (1–28.5) Norzila [20] 32 NA ≥94% 3.5 (3–6)¶ Oliveira [21] 46 NA ≥93% 11 (4–51) Yeh [22] 154 ≤0.125–≥0.5
11% in ≥0.5NA 7.6 (6–9.3) The present study 44 0.08–1.5 ≥93% 5 (2–24) Data are presented as n or median (range), unless otherwise stated. NA: not available. #: mean±sd; ¶: median (interquartile range).
