Table 37
Ratio of the best forced expiratory volume in one second to the best forced vital capacity in the household population, by age and sex, Canada, 2007 to 2009

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Ratio of the best forced expiratory volume in one second to the best forced vital capacity in the household population, by age and sex, Canada, 2007 to 2009: Part 1
  Ratio of the best forced expiratory volume in one second to the best forced vital capacity
Mean 5 th percentile 10 th percentile 25 th percentile
Estimate Confidence interval Estimate Confidence interval Estimate Confidence interval Estimate Confidence interval
From To From To From To From To
  ratio
Both sexes  
Age 6 to 11 0.846 0.839 0.852 0.738 0.719 0.757 0.769 0.759 0.779 0.813 0.807 0.819
Age 12 to 19 0.840 0.835 0.845 0.717 0.708 0.726 0.754 0.746 0.762 0.798 0.791 0.805
Age 20 to 39 0.804 0.797 0.811 0.690 0.666 0.714 0.723 0.711 0.735 0.767 0.759 0.775
Age 40 to 59 0.762 0.755 0.768 0.642 0.621 0.663 0.680 0.668 0.692 0.726 0.720 0.732
Age 60 to 79 0.729 0.725 0.733 0.583 0.561 0.605 0.631 0.618 0.644 0.696 0.692 0.700
Age 6 to 79 0.784 0.779 0.789 0.648 0.637 0.659 0.693 0.685 0.701 0.741 0.735 0.747
Males  
Age 6 to 11 0.835 0.825 0.845 0.723 0.696 0.750 0.760 0.735 0.785 0.806 0.797 0.815
Age 12 to 19 0.826 0.816 0.836 0.712 0.692 0.732 0.749 0.737 0.761 0.785 0.776 0.794
Age 20 to 39 0.794 0.781 0.806 0.666 0.627 0.705 0.711 0.687 0.735 0.756 0.742 0.770
Age 40 to 59 0.764 0.755 0.773 0.643 0.615 0.671 0.679 0.653 0.705 0.724 0.712 0.736
Age 60 to 79 0.716 0.708 0.725 0.553 0.506 0.600 0.605 0.591 0.619 0.686 0.674 0.698
Age 6 to 79 0.778 0.771 0.785 0.643 0.630 0.656 0.685 0.667 0.703 0.735 0.728 0.742
Females  
Age 6 to 11 0.856 0.849 0.862 0.756 0.740 0.772 0.778 0.769 0.787 0.821 0.817 0.825
Age 12 to 19 0.854 0.849 0.860 0.717 0.708 0.726 0.765 0.752 0.778 0.815 0.809 0.821
Age 20 to 39 0.815 0.806 0.824 0.707 0.682 0.732 0.737 0.720 0.754 0.779 0.767 0.791
Age 40 to 59 0.760 0.753 0.766 0.622 0.581 0.663 0.680 0.665 0.695 0.727 0.722 0.732
Age 60 to 79 0.741 0.734 0.748 0.609 0.569 0.649 0.658 0.639 0.677 0.704 0.695 0.713
Age 6 to 79 0.790 0.785 0.796 0.661 0.643 0.679 0.698 0.687 0.709 0.745 0.736 0.754
Ratio of the best forced expiratory volume in one second to the best forced vital capacity in the household population, by age and sex, Canada, 2007 to 2009: Part 2
  Ratio of the best forced expiratory volume in one second to the best forced vital capacity
50 th percentile 75 th percentile 90 th percentile 95 th percentile
Estimate Confidence interval Estimate Confidence interval Estimate Confidence interval Estimate Confidence interval
From To From To From To From To
  ratio
Both sexes  
Age 6 to 11 0.848 0.840 0.856 0.885 0.876 0.894 0.917 0.912 0.922 0.939 0.929 0.949
Age 12 to 19 0.845 0.836 0.854 0.888 0.882 0.894 0.923 0.917 0.929 0.940 0.935 0.945
Age 20 to 39 0.805 0.798 0.812 0.845 0.841 0.849 0.882 0.869 0.895 0.910 0.896 0.924
Age 40 to 59 0.774 0.767 0.781 0.808 0.802 0.814 0.835 0.827 0.843 0.852 0.844 0.860
Age 60 to 79 0.741 0.734 0.748 0.782 0.778 0.786 0.810 0.804 0.816 0.828 0.817 0.839
Age 6 to 79 0.791 0.787 0.795 0.833 0.827 0.839 0.874 0.867 0.881 0.904 0.897 0.911
Males  
Age 6 to 11 0.837 0.828 0.846 0.876 0.868 0.884 0.910 0.903 0.917 0.920 0.915 0.925
Age 12 to 19 0.830 0.818 0.842 0.875 0.864 0.886 0.907 0.897 0.917 0.932 0.920 0.944
Age 20 to 39 0.801 0.787 0.815 0.837 0.827 0.847 0.862 0.849 0.875 0.891 0.876 0.906
Age 40 to 59 0.777 0.767 0.787 0.811 0.803 0.819 0.845 0.834 0.856 0.857 0.849 0.865
Age 60 to 79 0.729 0.718 0.740 0.778 0.769 0.787 0.804 0.796 0.812 0.823 0.809 0.837
Age 6 to 79 0.788 0.781 0.795 0.830 0.821 0.839 0.862 0.855 0.869 0.891 0.881 0.901
Females  
Age 6 to 11 0.860 0.850 0.870 0.895 0.888 0.902 0.930 0.914 0.946 0.947 0.939 0.955
Age 12 to 19 0.865 0.859 0.871 0.900 0.893 0.907 0.930 0.921 0.939 0.945 0.932 0.958
Age 20 to 39 0.812 0.800 0.824 0.855 0.848 0.862 0.904 0.882 0.926 0.918 0.901 0.935
Age 40 to 59 0.772 0.765 0.779 0.801 0.794 0.808 0.825 0.817 0.833 0.841 0.836 0.846
Age 60 to 79 0.750 0.738 0.762 0.787 0.779 0.795 0.816 0.810 0.822 0.832 0.818 0.846
Age 6 to 79 0.793 0.790 0.796 0.840 0.834 0.846 0.887 0.878 0.896 0.916 0.907 0.925
Note(s):
Total household population aged 6 to 79, except those meeting the exclusion criteria (see the Canadian Health Measures Survey (CHMS) Data User Guide: Cycle 1).
Source(s):
Canadian Health Measures Survey, Cycle 1.