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Table 3 Descriptive Statistics for Time-Varying Student-Level Characteristics for the sample (n = 4417) from Year 5 (2016–2017), Y6 (2017–2018) and Y7 (2018–2019) of the COMPASS study

From: Examining if changes in gender-specific and co-ed intramural programs affect youth physical activity over time: a natural experiment evaluation using school- and student-level data from the COMPASS study

Variable

Total

n = 4417

Female (Ref) n = 2402

Male n = 2015

Year 5

Year 6

Year 7

Year 5

Year 6

Year 7

Year 5

Year 6

Year 7

Freq (%)

Freq (%)

Freq (%)

Freq (%)

Freq (%)

Freq (%)

Freq (%)

Freq (%)

Freq (%)

Intramurals

No (Ref)

2733 (61.9)

2813 (63.7)

2903 (65.7)

1494 (62.2)

1542 (64.2)

1616 (67.3)

1239 (61.5)

1271 (63.1)

1287 (63.9)

Yes

1684 (38.1)

1604 (36.3)

1514 (34.3)

908 (37.8)

860 (35.8)

786 (32.7)

776 (38.5)

744 (36.9)

728 (36.1)

Varsity

No (Ref)

2568 (58.1)

2529 (57.3)

2688 (60.9)

1464 (60.9)

1447 (60.2)

1558 (64.9)

1104 (54.8)

1082 (53.7)

1130 (56.1)

Yes

1849 (41.9)

1888 (42.7)

1729 (39.1)

938 (39.1)

955 (39.8)

844 (35.1)

911 (45.2)

933 (46.3)

885 (43.9)

Community

No (Ref)

2109 (47.7)

2394 (54.2)

2781 (63.0)

1218 (50.7)

1377 (57.3)

1599 (66.6)

891 (44.2)

1017 (50.5)

1182 (58.7)

Yes

2308 (52.3)

2023 (45.8)

1636 (37.0)

1184 (49.3)

1025 (42.7)

803 (33.4)

1124 (55.8)

998 (49.5)

833 (41.3)

Variable

Mean (SD)

Mean (SD)

Mean (SD)

Mean (SD)

Mean (SD)

Mean (SD)

Mean (SD)

Mean (SD)

Mean (SD)

MVPA (min/day)*

110 (67) n = 4417

102 (66) n = 4414

95 (64) n = 4375

105 (66) n = 2402

97 (64) n = 2400

89 (61) n = 2380

117 (68) n = 2015

109 (68) n = 2014

102 (65) n = 1995

  1. *Note that the sample sizes for MVPA in Y6 and Y7 are different compared to baseline as well as Y6 and Y7 of other covariates. This is because some subjects included in the model are missing MVPA data in Y6 and Y7 (i.e., monotone pattern)