Three predictive scores compared in a retrospective multicenter study of nonunion tibial shaft fracture

Table 2 Descriptive statistics for scores and age on outcome of nonunion and sex

	Female (n = 47)		Male (n = 83)		Total
	Nonunion (n = 7)	Union (n = 40)	Nonunion (n = 34)	Union (n = 49)
Age
Min/Max	32/84	18/86	19/82	18/87	18/87
Med (IQR)	52 (43; 55.5)	54 (42.2; 62)	45 (28.2; 57.8)	45.0 (27; 60)	46.5 (34; 60)
mean ± SD	52.1 ± 16.4	52.5 ± 17.5	44.6 ± 17.9	44.5 ± 20.0	47.4 ± 18.7
FRACTING
Min/Max	5.0/10	1.0/10.0	5.0/10.0	2.0/9.0	1.0/10.0
Med (IQR)	8.0 (6.0; 9.5)	5.0 (3.0; 7.0)	8.0 (6.0; 9.0)	4.0 (3.0; 7.0)	6.0 (4.0; 8.0)
mean ± SD	7.7 ± 2.1	5.2 ± 2.3	7.8 ± 1.8	5.1 ± 2.2	6.0 ± 2.4
NURD
Min/Max	0/7.0	0/8.0	1.0/11.0	0/8.0	0/11.0
Med (IQR)	1.0 (1.0; 3.5)	1.0 (1.0; 3.0)	4.5 (3.0; 7.0)	2.0 (1.0; 4.0)	3.0 (1.0; 4.0)
mean ± SD	2.4 ± 2.4	1.8 ± 1.8	4.9 ± 2.8	2.9 ± 2.1	3.1 ± 2.5
LEG-NUI
Min/Max	1.0/6.0	0/7.0	1.0/6.0	1.0/6.0	0/7.0
Med (IQR)	3.0 (2.0; 4.0)	2.0 (1.0; 3.0)	4.0 (3.2; 5.0)	2.0 (1.0; 3.0)	2.0 (1.0; 4.0)
mean ± SD	3.1 ± 1.7	2.1 ± 1.5	4.1 ± 4.1	2.2 ± 1.2	2.7 ± 1.6

FRACTING: FRACTure prediction healING days; NURD: Nonunion Risk Determination; LEG-NUI: Leeds-Genoa Nonunion Index.