Effectiveness of opportunistic osteoporosis screening on chest CT using the DCNN model

Table 1 Distribution of BMD in different age groups

Age(yr)	Data set			BMD _individual (mg/cm³)				t	P
Age(yr)	Overal	Male	Female		Average	Male	Female	t	P
< 30	60	40	20	175.96 ± 28.27		173.85 ± 31.38	180.18 ± 20.80	0.814	0.419
30 ~ 39	165	85	80	168.42 ± 28.26		160.27 ± 28.37	177.08 ± 23.22	4.174	< 0.001
40 ~ 49	256	157	99	148.27 ± 27.58		139.14 ± 25.06	162.76 ± 25.18	6.899	< 0.001
50 ~ 59	322	207	115	121.83 ± 32.53		120.48 ± 33.20	124.25 ± 31.30	0.470	0.639
60 ~ 69	117	57	60	94.46 ± 28.42		96.66 ± 29.52	92.36 ± 27.41	-0.704	0.483
70 ~ 79	86	41	45	83.83 ± 33.16		102.64 ± 31.91	66.7 ± 23.85	-6.141	< 0.001
80 ~ 89	40	17	23	66.49 ± 31.20		71.88 ± 33.45	62.51 ± 29.54	-1.018	0.315
≥ 90	2	1	1	38.78 ± 20.80		38.85 ± 0.00	38.7 ± 0.00
F		22.91*		157.79		54.85	141.94
P		0.002		0.002		< 0.001	0.038

Note BMD-Bone mineral density. F-Variance analysis of bone mineral density differences in subjects of different ages. *-chi-square test. t-test of bone mineral density difference between different sexes in the same age group

ISSN: 1471-2474