Table 2.
20-m SRT (number of completed stages/minutes) centiles by age and sex for 69,960 Chinese children and youth aged 9–17 years.
Age(yr)
P
5
P
10
P
20
P
30
P
40
P
50
P
60
P
70
P
80
P
90
P
95
Boy
9
1.54
1.85
2.26
2.59
2.88
3.18
3.48
3.83
4.25
4.88
5.43
10
1.72
2.07
2.53
2.90
3.23
3.56
3.90
4.29
4.76
5.46
6.08
11
1.93
2.32
2.83
3.24
3.61
3.97
4.35
4.78
5.31
6.08
6.77
12
2.16
2.59
3.16
3.61
4.02
4.42
4.85
5.32
5.90
6.76
7.52
13
2.40
2.87
3.50
3.99
4.44
4.88
5.34
5.86
6.50
7.44
8.27
14
2.61
3.12
3.80
4.33
4.81
5.29
5.78
6.34
7.02
8.04
8.92
15
2.79
3.33
4.04
4.60
5.11
5.61
6.13
6.71
7.43
8.50
9.43
16
2.93
3.48
4.22
4.80
5.32
5.84
6.38
6.98
7.73
8.82
9.78
17
3.03
3.60
4.36
4.95
5.48
6.01
6.56
7.17
7.93
9.05
10.02
Girls
9
1.59
1.86
2.21
2.50
2.76
3.02
3.29
3.61
4.00
4.59
5.12
10
1.75
2.04
2.43
2.74
3.03
3.31
3.61
3.96
4.39
5.03
5.61
11
1.90
2.21
2.63
2.97
3.27
3.58
3.90
4.27
4.73
5.42
6.04
12
2.04
2.37
2.81
3.17
3.49
3.81
4.16
4.54
5.03
5.76
6.41
13
2.16
2.50
2.97
3.33
3.67
4.01
4.36
4.76
5.27
6.02
6.70
14
2.25
2.61
3.08
3.46
3.80
4.15
4.51
4.92
5.43
6.20
6.89
15
2.32
2.68
3.16
3.54
3.89
4.24
4.61
5.02
5.54
6.31
7.01
16
2.37
2.73
3.22
3.60
3.95
4.30
4.67
5.08
5.60
6.38
7.07
17
2.40
2.76
3.25
3.63
3.99
4.34
4.71
5.13
5.65
6.43
7.13