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Table 1 Sample characteristics

From: Associations between physical activity patterns and dietary patterns in a representative sample of Polish girls aged 13-21 years: a cross-sectional study (GEBaHealth Project)

   Total sample
Number of participants   1107
Gender Female (%) 1107 (100.0)
Age (years) Mean (95 % Confidence interval) 17.3 (17.1; 17.4)
  Minimum – maximum 13–21
SES Index a Low 401 (36.2)
  Medium 339 (30.6)
  High 367 (33.2)
Mother’s education Primary/lower secondary (%) 441 (39.8)
  Upper secondary (%) 484 (43.8)
  Higher (%) 182 (16.5)
Father’s education Primary/lower secondary (%) 579 (52.4)
  Upper secondary (%) 389 (35.1)
  Higher (%) 139 (12.5)
Residence Country (%) 521 (47.1)
  Town (%) 348 (31.4)
  City (%) 238 (21.5)
Economic status Below average (%) 44 (3.9)
  Average (%) 885 (80.0)
  Above average (%) 178 (16.1)
BMI category b Thinnest grade 3 (%) 0 (0)
  Thinnest grade 2 (%) 5 (0.5)
  Thinnest grade 1 (%) 105 (9.7)
  Normal weight (%) 849 (77.7)
  Overweight (%) 115 (10.5)
  Obesity 18 (1.6)
Physical activity c Low (%) 509 (47.1)
  Moderate (%) 550 (50.9)
  High (%) 21 (2.0)
  1. Sample size may vary in each variables due to missing data. All data adjusted for sample weights
  2. a SES index categories based on tertile distribution
  3. b BMI: body mass index (n = 1092); Weight status categories assigned according to IOTF standards [44]; for girls 13–18 years old BMI age-sex-specific cut-offs were corresponding to the values at age 18; for girls >18 years old according to cut-offs for girls at age 18 (adults)
  4. c Physical activity classification: low: <600 MET-minutes/week, moderate: 600–2999 MET-minutes/week, high: ≥3000 MET-minutes/week, according to IPAQ protocol [40]
  5. 95 % CI (Confidence Interval)