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Table 4 Mixed logistic regression models for PE classes with MVPA ≥50%

From: Physical education environment and student physical activity levels in low-income communities

 

Elementary school

Middle school

High school

OR (95% CI)

OR (95% CI)

OR (95% CI)

Model 1

 Lesson location: outdoor vs. indoor

5.3 (3.1, 9.0)

21.0 (6.3, 69.4)

1.4 (0.6, 3.2)

 In-class PA promotion: higher vs. lowera

5.3 (3.3, 8.6)

6.0 (2.0, 18.0)

7.6 (3.8, 15.3)

 Motor content: higher vs. lowerb

5.2 (3.4, 7.9)

5.7 (2.3, 14.1)

3.0 (1.9, 4.8)

 Grade: 8th vs. 6th or 7th

NAd

2.2 (1.0, 4.6)

NAe

 The number of boys observed: 3 or 4 vs. 1 or 2

NAf

NAf

1.6 (1.0, 2.5)

Model 2

 Lesson location: outdoor vs. indoor

6.0 (3.6, 10.2)

44.1 (12.1, 160.4)

0.9 (0.4, 2.1)

 In-class PA promotion: higher vs. lowera

4.3 (2.7, 6.8)

4.5 (1.5, 13.9)

6.0 (3.0, 11.9)

 Fitness content: ≥30% vs. < 30%

1.4 (1.0, 2.1)

11.5 (4.0, 33.4)

1.9 (1.1, 3.4)

 Game play content: higher vs. lowerc

2.1 (1.4, 3.0)

0.8 (0.3, 1.8)

1.1 (0.7, 1.8)

 Grade: 8th vs. 6th or 7th

NAd

2.3 (1.1, 5.0)

NAe

 The number of male students observed: 3 or 4 vs. 1 or 2

NAf

NAf

1.8 (1.1, 2.8)

  1. CI confidence interval; MVPA moderate- and vigorous-intensity physical activity; PA physical activity; PE physical education
  2. All mixed models were adjusted for school race/ethnicity and the proportion of disadvantaged students. The mixed models for high school were additionally adjusted for proportion of males observed
  3. a“Higher” was defined as ≥20% for elementary school, ≥15% for middle school, and ≥ 10% for higher school. “Lower” was defined as < 20% for elementary school, < 15% for middle school, and < 10% for high school
  4. b“Higher” was defined as ≥60% for elementary school, ≥65% for middle school, and ≥ 70% for high school. “Lower” was defined as < 60% for elementary school, < 65% for middle school, and < 70% for high school
  5. c“Higher” was defined as ≥20% for elementary and middle schools and ≥ 30% for high school. “Lower” was defined as < 20% for elementary and middle schools and < 30% for high school
  6. dGrade was not included in the mixed models for elementary schools, because grade was not associated with MVPA≥50% in a bivariate analysis shown in Table 2
  7. eGrade was not included in the mixed models for high school, because most high school PE lessons were grade-mixed
  8. fThe number of male students observed was not included in the mixed models for elementary and middles schools, because it was not associated with MVPA≥50% in a bivariate analysis shown in Table 2