Table 3.

Univariate analysis of 7 variables in relation to survival data at 1 year after the index fracture (n = 4 86)¹

Variable	Negative	Positive	Total	LR	95% CI	Statistic
Sex
Male	117	39	156	1.18	0.77–1.78
Female	261	69	330	0.93	0.66–1.30	x2 = 1.026, n.s
Age
–59	44	3	47	0.24	0.08–0.72
60–64	15	3	18	0.70	0.20–2.45
65–69	25	2	27	0.28	0.07–1.10
70–74	26	6	32	0.81	0.33–2.01
75–79	62	11	73	0.62	0.32–1.22
80–84	95	24	119	0.88	0.54–1.45
85–89	67	35	102	1.83	1.16–2.89
90–	44	24	68	1.91	1.12–3.26	Wx = 4.606 p < 0.0001
ASA class
1	13	0	13	0.14	0.01–1.51
2	90	10	100	0.39	0.20–0.76
3	244	63	307	0.90	0.64–1.28
4	31	35	66	3.95	2.39–6.53	Wx = 5.462, p < 0.0001
BMI (kg/m2)1
–19.99	36	27	63	2.63	1.55–4.46
20–24.99	143	31	174	0.76	0.49–1.18
25–29.99	81	12	93	0.52	0.28–0.98
30–	28	2	30	0.25	0.07–0.96
Missing1	90	36	126	1.40	0.90–2.18	χ2 = 26.138, p < 0 .0001
Fracture type
S72.0	231	53	284	0.80	0.56–1.16
S72.1	126	51	177	1.42	0.96–2.09
S72.2	21	4	25	0.67	0.23–1.97	χ2 = 6.216, p < 0.05
Operative method
NFB20	191	45	236	0.83	0.56–1.22
NFJ52	104	43	147	1.45	0.96–2.19
NFJ54	43	10	53	0.81	0.40–1.67
NFJ50	22	4	26	0.64	0.22–1.87
NFB10	15	6	21	1.40	0.53–3.68
NFB30-50	3	0	3	0.58	0.03–11.23	χ2 = 5.774, n.s
Comorbidity
None	220	60	280	0.96	0.67 – 1.36
Alcoholism	33	6	39	0.64	0.26 – 1.55
Alzheimer’s disease	42	7	49	0.58	0.26 – 1.33
Dementia	42	21	63	1.75	0.99 – 3.07
Previous stroke	28	9	37	1.13	0.52 – 2.45
Other	13	5	18	1.35	0.47 – 3.84	χ2 = 7.859, n.s

LR, likelihood ratio; χ², chi-squared test; Wx, Wilcoxon rank test; ¹all classes of the variables are compared with each other within the variable; ²in 126 patients, information on BMI was missing