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Distribution of the mean spirometry values and grades of the university students selected for the experiment.
| Sexuality | Mea spirometry (ml) | Excellent (90 +) (%) | Good (80∼89 points) (%) | Pass pass (60∼79 points) (%) | Failure, (59, points below) (%) |
|---|---|---|---|---|---|
| Schoolboy | 4248 | 17.90 | 26.94 | 49.02 | 6.14 |
| Schoolgirl | 2784 | 13.73 | 18.96 | 60.66 | 6.65 |
