Table 1.

Demographics and clinical information of confirmed non-union versus delayed union following initial diagnosis of suspected non-union on CT.

	Confirmed non-union n = 80	Delayed union n = 19	Significance
Age – years	48.4 (CI 45.1–51.6)	45.9 (CI 39.1–52.7)	0.51
Male/Female	51/29	12/7	0.96
Smoker	29 (36.3%)	4 (21.1%)	0.21
Post plate fixation (n = 15)	12 (15.0%)	3 (15.8%)	0.93
Time to CT – days	168.5 (IQR 116.5–239.8)	146 (IQR 95.0–193.0)	0.12
<180 days	43	12	0.46
>180 days	37	7
Time from CT to operation Days	113 (IQR 74.3–117.3)	126 (IQR 78.0–215.0)	0.98
Overall time to operation  Days	288.5 (IQR 222.5–447.0)	333.0 (IQR 261.0–430.0)	0.45
Comminution (Robinson 2B2)	41 (51.3%)	11 (57.9%)	0.60
Callus hypertrophic	23 (28.8%)	19 (100%)	<0.001*
High energy	37 (46.3%)	8 (42.1%)	0.74

Mean and 95% confidence interval (CI) given in brackets. Median and interquartile range (IQR) 25th–75th centile in brackets.

*Significance < 0.05.