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. 2022 Mar 8;11(4):e220028. doi: 10.1530/EC-22-0028

Table 1.

Anthropometric and laboratory characteristics of the study groups.

Parameters NC (n = 59) PT (n = 19) CPP (n = 67) P
CA (years) 7.61 ± 0.92 7.34 ± 1.04 7.55 ± 1.39 0.677
BA (years) - 7 (7, 7.5) 9 (7.5, 10)a 0.000c
BA-CA (years) - −0.2 (−0.84, 0.61) 1.1 (0.52, 1.84)a 0.000c
Height (cm) 123.20 ± 6.09 122.65 ± 6.80 129.78 ± 11.18ab 0.000c
Weight (kg) 22.4 (20.7, 25.0) 23.9 (20.2, 26.4) 27.1 (23.3, 32.1)ab 0.000c
BMI (kg/m2) 14.9 (14.26, 15.42) a 15.75 (14.48, 16.48) 15.87 (14.75, 17.19)b 0.000c
Uterus volume (mL) - 1.50 (0.69, 2.87) 2.72 (1.63, 4.73)a 0.002c
Ovarian volume (m) - 1.83 (1.44, 2.48) 2.24 (1.43, 4.11) 0.155
E2 (pmol/L) 59.26 (23.75, 77.53)a 92.16 (47.64, 104.92) 108.30 (73.82, 158.63)b 0.000c
B-LH (IU/L) 0.11 (0.06, 0.16) 0.11 (0.05, 0.17) 1.00 (0.30, 2.14)ab 0.000c
P-LH (IU/L) - 3.64 (2.75, 4.32) 15.18 (9.13, 33.99)a 0.000c
B-FSH (IU/L) 1.72 (1.31, 2.16) 2.10 (1.51, 2.60) 3.73 (2.41, 5.71)ab 0.000c
P-FSH (IU/L) - 13.34 (11.31, 15.68) 17.69 (12.57, 23.47)a 0.039c
P-LH/P-FSH - 0.27 (0.18, 0.34) 1.11 (0.63, 1.87)a 0.000c
IGF-1 (nmol/L) - 31.46 (24.32, 38.98) 43.49 (32.53, 52.87)a 0.002c
Insulin (pmol/L) - 8.14 ± 4.85 12.34 ± 6.21a 0.034c
GLU (mmol/L) - 4.61 ± 0.33 4.46 ± 0.44 0.300
HOMA-IR - 1.74 ± 0.98 2.53 ± 1.31 0.068
Irisin (ng/ml) 61.8 (38.9, 97.17)a 100.28 (68.06, 170.63) 159.23 (77.12, 289.46)b 0.000c

Values are expressed as mean ±standard deviation (s.d.) for normally distributed variables or expressed as median (interquartile ranges) for non-normally distributed variables. Statistical significance is represented as camong three groups P < 0.05, avs. PT group P < 0.05 and bvs NC group P < 0.05.

B-, base; BA, bone age; BA-CA: bone age advancement; CA, chronological age; CPP, central precocious puberty; E2, estradiol; FSH, follicle stimulating hormone; GLU, fasting glucose; HOMA-IR, homeostasis model assessment of insulin resistance; IGF-1, insulin-like growth factor-1; LH, luteinizing hormone; NC, normal control; P-, peak; PT, premature thelarche.