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Table 1 Characteristics of the sample at baseline.

From: Physical activity and depressive symptoms in adolescents: a prospective study

  N Percentage adjusted for survey design
Depressive symptoms:   
Case on SMFQ 671 24.5
Not a case on SMFQ 2,054 75.5
Physical activity:   
None 317 11.5
About 0.5 h 787 28.6
About 1 h 623 22.7
About 2-3 h 609 22.3
About 4-6 h 239 8.7
7 h or more 171 6.2
Sex:   
Male 1,356 48.8
Female 1,433 51.1
Year group:   
Year 7 1,381 49
Year 9 1,408 51
Ethnicity:   
White UK 581 20.8
White other 161 5.9
Bangladeshi 690 25.6
Indian 250 9
Pakistani 184 6.8
Black Caribbean 166 6
Black African 279 10.1
Black British 121 4.3
Mixed ethnicity 193 7
Other 124 4.5
Religious group:   
None 325 11.5
Jewish 3 0.1
Christian 994 35.7
Muslim 1,169 42.7
Hindu 101 3.7
Sikh 72 2.7
Agnostic/atheist/don't know 59 2.1
Other 43 1.6
Either parent employed:   
Neither 1,004 37.5
At least one 1,681 62.5
Eligibility for free school meals:   
Not eligible 1,338 51.9
Eligible 1,217 48.1
  1. SMFQ = Short Moods and Feelings Questionnaire.