Table 3 The physical education class frequency per week according to the BMI standard.
Group
Category
Boys
Girls
ß
S.E.
OR
95% CI
P *
ß
S.E.
OR
95% CI
P *
Normal Vs. Underweight
No PE class
One PE class per week
.155
.073
1.168
1.011-1.349
.035
.029
.060
1.029
.915-1.157
.633
Two PE classes per week
.483
.057
1.621
1.450-1.812
<.001
.211
.045
1.235
1.131-1.349
<.001
Over three PE classes per week
1.106
.057
3.023
2.704-3.381
<.001
.806
.045
2.238
2.048-2.446
<.001
Normal Vs. Overweight
No PE class
One PE class per week
.019
.080
1.019
.872-1.192
.809
-.089
.081
.915
.781-1.072
.271
Two PE classes per week
.065
.061
1.068
.947-1.204
.285
-.121
.060
.886
.787-.997
.045
Over three PE classes per week
-.045
.064
.956
.843-1.085
.485
-.258
.066
.772
.679-.878
<.001
Normal Vs. Obesity
No PE class
One PE class per week
-.034
.078
.967
.830-1.125
.661
.150
.098
1.162
.950-1.407
.125
Two PE classes per week
-.047
.059
.954
.849-1.072
.425
-.239
.078
.788
.675-.919
.002
Over three PE classes per week
-.149
.063
.862
.762-.974
.017
-.344
.086
.709
.599-.838
<.001
BMI; Body Mass Index; S.E, Standard Error; OR, Odd Ratio; CI, Confidence Interval; PE, Physical Education. The association of the frequency of PE classes and BMI category, by sex.