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. 2014 May 28;14:130. doi: 10.1186/1471-2431-14-130

Table 1.

The primary endpoints

  87-93 90-93 p
Time* in 93-87% SpO2
72.9% (16.8)
71.3% (16.4)
0.813
Time <80% SpO2
1.6% (3.4-0.7)
1.7% (3.1-0.5)
0.052
Time* >98% SpO2
0.4% (0.7-0.1)
0.4% (1.9-0.2)
0.102
Time 86-80% SpO2 8.4% (11.4-6.8) 6.2% (10.3-2.8) 0.006

Data mean(stdev) or median(IQR). p from paired Wilcoxon Sign Rank test for medians and paired t-test for means, *% Time >93% when FiO2 = 0.21 is treated as in 87-93%.