No. of samples | Total | Male | Female | ||||
No. of samples below 14% O2 | % of samples below 14% O2 | No. of samples below 14% O2 | % of samples below 14% O2 | No. of samples below 14% O2 | % of samples below 14% O2 | ||
21–30 | 46 | 40 | 87.0 | N/A | N/A | 40 | 87.0 |
31–40 | 41 | 24 | 58.5 | 5 | 71.4 | 19 | 55.9 |
41–50 | 75 | 73 | 97.3 | 38 | 100.0 | 35 | 94.6 |
51–60 | 61 | 57 | 93.4 | 50 | 96.2 | 7 | 77.8 |
61–70 | 56 | 52 | 92.8 | 12 | 100.0 | 40 | 87.0 |
71–80 | 6 | 4 | 66.7 | N/A | N/A | 4 | 66.7 |
81–90 | 8 | 8 | 100.0 | 8 | 100.0 | N/A | N/A |
Total | 293 | 258 | 88.1 | 113 | 96.6 | 145 | 82.3 |
EEO2, end-expiratory O2; O2, oxygen.