Associations of body mass index and diabetes with hip fracture risk: a nationwide cohort study

BMC Public Health

Table 2 Descriptive statistics of participants with or without hip fractures

Variable	Total	%	Without hip fractures		With hip fractures		p -value
Variable	Total	%	N	%	N	%	p -value
Total	22,048	100.00	21,733	98.57	315	1.43
BMI							< 0.001
BMI < 18.5	786	3.56	758	3.49	28	8.89
18.5 ≦ BMI < 24	10,858	49.25	10,689	49.18	169	53.65
24 ≦ BMI < 27	6474	29.36	6396	29.43	78	24.76
27 ≦ BMI < 30	2742	12.44	2712	12.48	30	9.52
≧ 30	1188	5.39	1178	5.42	10	3.17
Diabetes							< 0.001
No	18,540	84.09	18,308	84.24	232	73.65
Yes	3508	15.91	3425	15.76	83	26.35
Sex							0.205
Male	10,908	49.47	10,762	49.52	146	46.35
Female	11,140	50.53	10,971	50.48	169	53.65
Age							< 0.001
40–49	9015	40.89	8993	41.38	22	6.98
50–59	6347	28.79	6310	29.03	37	11.75
60–69	3616	16.40	3547	16.32	69	21.90
70–79	2274	10.31	2161	9.94	113	35.87
≧ 80	796	3.61	722	3.32	74	23.49
Urbanization of residence area							0.099
1 & 2	10,027	45.48	9903	45.57	124	39.37
3 & 4	7234	32.81	7140	32.85	94	29.84
5–7	4787	21.71	4690	21.58	97	30.79
Monthly salary (NTD)							< 0.001
≦ 17,280	2578	11.69	2489	11.45	89	28.25
17,281-22,800	9925	45.02	9793	45.06	132	41.90
22,801-36,300	5121	23.23	5069	23.32	52	16.52
> 36,300	4424	20.07	4382	20.16	42	13.33
CCI							< 0.001
0	16,988	77.05	16,808	77.34	180	57.14
1–3	4303	19.52	4197	19.32	105	33.33
≧ 4	757	3.43	727	3.35	30	9.53
DCSI							< 0.001
0	20,784	94.27	20,504	94.35	280	88.89
≧ 1	1264	5.73	1229	5.65	35	11.11
Weekly amount of calories burned in exercise							0.831
No exercise	12,001	54.43	11,845	56.09	156	57.99
< 500 kcal	3630	16.46	3585	16.98	45	16.73
≧ 500 kcal	5755	26.10	5687	26.93	68	25.28
Missing	662	3.00

BMI body mass index, CCI Charlson Comorbidity Index, DCSI diabetes complication severity index
NTD New Taiwan Dollar; 32 NTD = 1 US dollar
Urbanization of residence area (Level 1 was the most urbanized)
p-value: log-rank test

ISSN: 1471-2458