. 2020 Oct 29;7(11):204. doi: 10.3390/children7110204

Table 1.

Results of analysed variables according to gender.

Variables	Age	Boys/Girls	X	SD	Mann–Whitney U Test	Student’s t-Test
Body height (cm)	11	Boys	151.44	5.49	Z = 1.877 p = 0.060	t = 1.673 p = 0.097
	11	Girls	149.35	8.23	Z = 1.877 p = 0.060	t = 1.673 p = 0.097
	12	Boys	158.18	8.71	Z = 0.886 p = 0.375	t = −0.768 p = 0.444
	12	Girls	159.24	6.63	Z = 0.886 p = 0.375	t = −0.768 p = 0.444
Body mass (kg)	11	Boys	44.19	10.56	Z = 1.420 p = 0.155	t = 1.386 p = 0.168
	11	Girls	41.66	10.23	Z = 1.420 p = 0.155	t = 1.386 p = 0.168
	12	Boys	50.08	13.72	Z = 0.114 p = 0.908	t = 0.446 p = 0.656
	12	Girls	49.11	10.34	Z = 0.114 p = 0.908	t = 0.446 p = 0.656
Fat (%)	11	Boys	21.85	7.5	Z = 2.225 p = 0.026	t = −1.626 p = 0.106
	11	Girls	23.65	5.06	Z = 2.225 p = 0.026	t = −1.626 p = 0.106
	12	Boys	20.1	7.43	Z = 3.993 p = 0.000	t = −3.371 p = 0.001
	12	Girls	23.82	4.55	Z = 3.993 p = 0.000	t = −3.371 p = 0.001
Fat mass (kg)	11	Boys	10.46	6.07	Z = 0.568 p = 0.569	t = 0.245 p = 0.806
	11	Girls	10.23	4.49	Z = 0.568 p = 0.569	t = 0.245 p = 0.806
	12	Boys	10.75	6.7	Z = 2.600 p = 0.009	t = −1.271 p = 0.206
	12	Girls	12.07	4.81	Z = 2.600 p = 0.009	t = −1.271 p = 0.206
FFM (kg)	11	Boys	33.72	5.11	Z = 2.561 p = 0.010	t = 2.334 p = 0.021
	11	Girls	31.42	6.16	Z = 2.561 p = 0.010	t = 2.334 p = 0.021
	12	Boys	39.33	8.49	Z = 1.333 p = 0.182	t = 1.749 p = 0.083
	12	Girls	37.04	5.94	Z = 1.333 p = 0.182	t = 1.749 p = 0.083
Muscle mass (kg)	11	Boys	31.9	4.92	Z = 2.467 p = 0.0136	t = 2.229 p = 0.027
	11	Girls	29.8	5.85	Z = 2.467 p = 0.0136	t = 2.229 p = 0.027
	12	Boys	37.28	8.1	Z = 1.288 p = 0.197	t = 1.707 p = 0.090
	12	Girls	35.15	5.65	Z = 1.288 p = 0.197	t = 1.707 p = 0.090
BMI	11	Boys	19.13	3.76	Z = 0.739 p = 0.459	t = 1.046 p = 0.297
	11	Girls	18.48	3.26	Z = 0.739 p = 0.459	t = 1.046 p = 0.297
	12	Boys	19.77	4.1	Z = 0.345 p = 0.729	t = 0.797 p = 0.426
	12	Girls	19.25	3.28	Z = 0.345 p = 0.729	t = 0.797 p = 0.426
TBW (kg)	11	Boys	24.69	3.75	Z = 2.554 p = 0.010	t = 2.334 p = 0.021
	11	Girls	23	4.52	Z = 2.554 p = 0.010	t = 2.334 p = 0.021
	12	Boys	28.79	6.22	Z = 1.331 p = 0.183	t = 1.754 p = 0.082
	12	Girls	27.11	4.35	Z = 1.331 p = 0.183	t = 1.754 p = 0.082
TBW (%)	11	Boys	56.96	5.18	Z = 1.965 p = 0.049	t = 1.358 p = 0.176
	11	Girls	55.9	3.69	Z = 1.965 p = 0.049	t = 1.358 p = 0.176
	12	Boys	58.49	5.45	Z = 4.024 p = 0.000	t = 3.375 p = 0.001
	12	Girls	55.77	3.31	Z = 4.024 p = 0.000	t = 3.375 p = 0.001
BMR (kJ)	11	Boys	6029.91	597.4	Z = 6.367 p < 0.001	t = 7.255 p < 0.001
	11	Girls	5220.55	674.44	Z = 6.367 p < 0.001	t = 7.255 p < 0.001
	12	Boys	6538.84	970.67	Z = 5.021 p < 0.001	t = 5.393 p < 0.001
	12	Girls	5733.16	678.25	Z = 5.021 p < 0.001	t = 5.393 p < 0.001
BMR (kcal)	11	Boys	1441.17	142.78	Z = 6.195 p < 0.001	t = 7.036 p < 0.001
	11	Girls	1252.75	162.54	Z = 6.195 p < 0.001	t = 7.036 p < 0.001
	12	Boys	1562.82	231.99	Z = 5.021 p < 0.001	t = 5.394 p < 0.001
	12	Girls	1370.25	162.11	Z = 5.021 p < 0.001	t = 5.394 p < 0.001
Bone mass (kg)	11	Boys	1.78	0.24	Z = 3.580 p = 0.001	t = 3.291 p = 0.001
	11	Girls	1.62	0.31	Z = 3.580 p = 0.001	t = 3.291 p = 0.001
	12	Boys	2.06	0.39	Z = 2.227 p = 0.025	t = 2.588 p = 0.010
	12	Girls	1.9	0.29	Z = 2.227 p = 0.025	t = 2.588 p = 0.010
Proteins (kg)	11	Boys	7.23	1.13	Z = 2.270 p = 0.023	t = 2.014 p = 0.046
	11	Girls	6.8	1.34	Z = 2.270 p = 0.023	t = 2.014 p = 0.046
	12	Boys	8.48	1.88	Z = 1.114 p = 0.265	t = 1.550 p = 0.124
	12	Girls	7.23	1.13	Z = 1.114 p = 0.265	t = 1.550 p = 0.124