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Table 1 Mean/median (SD/IQR) blood lipids of adolescents at age 18 by selected characteristics. The 1993 Pelotas (Brazil) Birth Cohort

From: Dietary patterns are associated with blood lipids at 18-year-olds: a cross-sectional analysis nested in the 1993 Pelotas (Brazil) birth cohort

    Lipid profile (mg/dL)
Variable n % Total cholesterol LDL cholesterol HDL cholesterol Triglycerides
    P value* mean (SD) P value* mean (SD) P value* mean (SD) P value* median (IQR)
Sex    < 0.001 < 0.001 < 0.001 0.02
 Girls 1718 48.7 170.8 (29.4) 94.5 (20.3) 60.2 (10.9) 71 (58; 91)
 Boys 1806 51.3 152.8 (24.5) 84.4 (20.3) 51.7 (8.7) 68 (55; 89)
Skin coloura    < 0.001 < 0.001 0.032 < 0.001
 White 2199 64.8 163.2 (29.1) 90.2 (23.2) 56.3 (11.1) 71 (58; 95)
 Black/brown 1192 35.2 158.8 (27.5) 87.5 (22.1) 55.4 (10.2) 65 (54; 83)
Family income at birth (MMW) < 0.001 0.007 < 0.001 < 0.001
  ≤ 2 2120 60.2 159.3 (28.0) 88.4 (22.8) 54.9 (10.3) 67 (56; 86)
 3–5 843 23.9 163.8 (27.8) 90.4 (21.6) 56.5 (11.1) 71 (58; 94)
  ≥ 6 561 15.9 166.9 (30.3) 91.4 (24.2) 58.3 (11.3) 76 (60; 102)
Maternal education at birth (years)b < 0.001 0.034 < 0.001 < 0.001
  < 8 2129 60.5 159.6 (28.0) 88.7 (22.7) 54.7 (10.3) 68 (56; 88)
  ≥ 8 1389 39.5 164.5 (28.9) 90.3 (22.9) 57.5 (11.2) 72 (58; 96)
Smoking habit    < 0.001 0.008 < 0.001 0.530
 No 3045 86.4 162.5 (28.4) 89.7 (22.6) 56.7 (10.8) 70 (57; 92)
 Yes 479 13.6 155.7 (28.4) 86.8 (23.5) 52.7 (9.8) 69 (57; 89)
Leisure-time physical activity (min/week) < 0.001 < 0.001 < 0.001 0.008
  < 300 1418 40.2 165.3 (28.5) 91.4 (22.9) 57.2 (10.8) 71 (58; 95)
  ≥ 300 2106 59.8 159.2 (28.2) 87.9 (22.6) 54.9 (10.7) 68 (56; 88)
Age of menarche (years)c 0.003 0.028 0.003 0.025
  ≤ 11 475 27.8 174.2 (30.4) 96.6 (24.4) 61.4 (10.9) 73 (59; 97)
  ≥ 12 1236 72.2 169.6 (29.0) 93.8 (23.9) 59.7 (10.9) 70 (58; 90)
Body mass indexd    < 0.001 < 0.001 < 0.001 < 0.001
 Under/normal weight 2585 73.3 159.0 (27.8) 86.9 (21.9) 56.5 (10.7) 67 (55; 85)
 Overweight/obese 939 26.7 168.7 (29,0) 96.2 (23.8) 54.2 (10.7) 79 (61; 112)
Total N* 3524 100 161.6 (28.5) 89.3 (22.8) 55.8 (10.7) 69 (57; 91)
  1. *P values refer to comparisons of means (SD) or medians (IQR) between groups using Student t tests or Mann-Whitney U tests, ANOVA or Kruskal-Wallis tests, respectively. a133 missing values; b6 missing values; c7 missing values; dBMI for age and sex reference in z score: under/normal weight ≤ + 1 SD; overweight/obese: > + 1SD. Abbreviations: MMW monthly minimum wages, SD Standard deviation, IQR Interquartile range