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Table 1 Characteristics of the study population

From: Universal screening for cardiovascular disease risk factors in adolescents to identify high-risk families: a population-based cross-sectional study

Variable Number Male Female p
3467 1718 (50 %) 1749 (50 %)
BMI classification (World Health Organization) 3382    0.002
 Underweight (<5th percentile)   36 (2 %) 32 (2 %)  
 Normal weight (≥5th–<85th percentile)   1042 (62 %) 1157 (68 %)  
 Overweight (≥85th–<95th percentile)   251 (15 %) 239 (14 %)  
 Obese (≥95th percentile)   349 (21 %) 276 (16 %)  
Waist-to-height ratio 3382    0.24
 <0.5   1324 (79 %) 1379 (81 %)  
 0.5–< 0.6   281 (17 %) 266 (16 %)  
 ≥0.6   73 (4 %) 59 (3 %)  
Elevated blood pressure (maximum systolic/diastolic blood pressure) 3359    
 Normal (<90th percentile)   1526 (91 %) 1544 (91 %) 0.46
 Pre-hypertension (90–< 95th percentile)   76 (5 %) 91 (5 %)  
 Stage 1 hypertension (95th–< 99th percentile)   52 (3 %) 44 (3 %)  
 Stage 2 hypertension (≥99th percentile)   15 (1 %) 11 (1 %)  
Total cholesterol classification 3061    <0.001
 Normal (<4.4 mmol/L)   1282 (84 %) 1122 (73 %)  
 Borderline high (4.4–< 5.2 mmol/L)   191 (13 %) 323 (21 %)  
 High (≥5.2 mmol/L)   50 (3 %) 93 (6 %)  
Low high-density lipoprotein (HDL-C) (<1.03 mmol/L) 3005 572 (38 %) 279 (18 %) <0.001
Non-high density lipoprotein (non-HDL-C) classification 3061    0.001
 Normal   1224 (80 %) 1149 (75 %)  
 Borderline high (≥3.10 to <3.75 mmol/L)   196 (13 %) 268 (17 %)  
 High (≥3.75 mmol/L)   103 (7 %) 121 (8 %)  
  1. P values correspond to differences between males and females regarding classification distribution or prevalence of abnormalities