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Table 2 Body mass distribution in the assessed groups

From: Relationship between lower-extremity defects and body mass among polish children: a cross-sectional study

Body mass (BMI z-score) Total (%) Girls (%) Boys (%)
Severe underweight (z-score ≤ −3) 23 (0,33%) 21 (0,60%) 2 (0,06%) ⃰
Underweight (z-score > −3 ≤ −2) 126 (1,8%) 83 (2,36%) 43 (1,24%) ⃰
Thinness (z-score > −2 ≤ − 1) 749 (10,71%) 430 (12,23%) 319 (9,18%) ⃰
Normal (z-score ≥ −1 < 1) 4730 (67,65%) 2378 (67,63%) 2352 (67,66%)
Overweight (z-score ≥ 1 < 2) 1140 (16,30%) 530 (15,07%) 610 (17,55%)
Obesity (z-score ≥ 2) 224 (3,2%) 74 (2,10%) 150 (4,32%) ⃰
  1. *p < 0,05