Kyphosis Age Number Start
absent  71  3  5
absent 158  3 14
present 128  4  5
absent   2  5  1
absent   1  4 15
absent   1  2 16
absent  61  2 17
absent  37  3 16
absent 113  2 16
present  59  6 12
present  82  5 14
absent 148  3 16
absent  18  5  2
absent   1  4 12
absent 168  3 18
absent   1  3 16
absent  78  6 15
absent 175  5 13
absent  80  5 16
absent  27  4  9
absent  22  2 16
present 105  6  5
present  96  3 12
absent 131  2  3
present  15  7  2
absent   9  5 13
absent   8  3  6
absent 100  3 14
absent   4  3 16
absent 151  2 16
absent  31  3 16
absent 125  2 11
absent 130  5 13
absent 112  3 16
absent 140  5 11
absent  93  3 16
absent   1  3  9
present  52  5  6
absent  20  6  9
present  91  5 12
present  73  5  1
absent  35  3 13
absent 143  9  3
absent  61  4  1
absent  97  3 16
present 139  3 10
absent 136  4 15
absent 131  5 13
present 121  3  3
absent 177  2 14
absent  68  5 10
absent   9  2 17
present 139 10  6
absent   2  2 17
absent 140  4 15
absent  72  5 15
absent   2  3 13
present 120  5  8
absent  51  7  9
absent 102  3 13
present 130  4  1
present 114  7  8
absent  81  4  1
absent 118  3 16
absent 118  4 16
absent  17  4 10
absent 195  2 17
absent 159  4 13
absent  18  4 11
absent  15  5 16
absent 158  5 14
absent 127  4 12
absent  87  4 16
absent 206  4 10
absent  11  3 15
absent 178  4 15
present 157  3 13
absent  26  7 13
absent 120  2 13
present  42  7  6
absent  36  4 13