Characteristic | Tanner 2 (n = 397) | Tanner 4 (n = 356) | ||
---|---|---|---|---|
N missing | DistributionA | N missing | DistributionA | |
Age (years) | 0 | 9.44 (1.31) | 0 | 11.16 (0.84) |
Age at menarche | 52 | 11.80 (0.89) | 24 | 11.75 (0.84) |
Height (Z-score) | 0 | 0.09 (0.96) | 1 | 0.39 (1.00) |
BMI (Z-score) | 0 | 0.81 (1.12) | 1 | 0.91 (1.05) |
Fat percentage (%) | 1 | 26.28 (4.88) | 0 | 26.57 (5.06) |
Maternal education | 0 | Â | 0 | Â |
 No post-secondary education |  | 304 (76.57) |  | 268 (75.28) |
 Post-secondary education |  | 93 (23.43) |  | 88 (24.72) |
Ethnicity | 0 | Â | 0 | Â |
 No Mapuche background |  | 327 (82.37) |  | 294 (82.58) |
 Mapuche background |  | 70 (17.63) |  | 62 (17.42) |
Birth weight (kg) | 12 | 3.38 (0.39) | 10 | 3.34 (0.39) |
Birth length (cm) | 12 | 49.77 (1.71) | 10 | 49.68 (1.74) |
Inflammatory biomarkersB | ||||
 C-reactive protein (CRP; mg/L) | 44 | 1.74 (2.46) | 2 | 1.49 (2.26) |
 Interleukin-6 (IL-6; pg/mL) | 11 | 2.10 (2.70) | 5 | 1.93 (2.29) |
 TNF receptor 2 (TNFR2; pg/mL) | 11 | 2270.96 (579.53) | 5 | 2345.29 (548.80) |
Breast composition at Tanner 4 | ||||
 Total breast volume (BV; cm3) | 119 | 206.81 (95.65) | 11 | 221.48 (100.79) |
 Fibroglandular volume (FGV; cm3) | 119 | 81.50 (32.11) | 11 | 82.59 (33.78) |
 Percent fibroglandular volume (%FGV; cm3) | 119 | 43.38 (16.05) | 11 | 41.36 (16.66) |