Table 1.

Detailed anthropometrics of included patients

Variable	Group 1 (n = 66)	Group 2 (n = 18)	p value
Age (years)	45.8 (range 18.5–79.9)	42.2 (range 22.5–58.5)	0.40
Sex	54♂, 12♀	16♂, 2 ♀	0.48
Smokers, non-smokers (n)	17, 49	7, 11	0.27
Pack years	27.1 (range 10–45)	26.4 (range 10–40)	0.91
Manual labourer n, (%)	41 (62.1)	15 (83.3)	0.09
Dominant side affected n, (%)	31 (47.0)	5 (27.8)	0.14
Follow up (months)	24.1 (range 3.4–46.4)	28.1 (range 9.6–46.2)	0.48
Affected finger+ (n)	1 = 16; 2 = 19; 3 = 15; 4 = 10; 5 = 6	1 = 3; 2 = 9; 3 = 4; 4 = 1; 5 = 1	0.47
Trauma mechanism* (n)	1 = 19; 2 = 29; 3 = 18	1 = 3; 2 = 10; 3 = 5	0.54
Allen Classification (1–4)	1.7 (1–4); median = 2	2.2 (1–4); median = 2	0.24
Amputated fingertip in (%)	43 (range 15–70)	47 (range 15–70)	0.26
Affected side$	1 = 19; 2 = 23; 3 = 24	1 = 8; 2 = 5; 3 = 5	0.45

y/n yes/no

⁺Affected finger: 1 = thumb, 2 = index finger, 3 = middle finger, 4 = ring finger 5 = little finger; *Trauma mechanism: 1 = sharp, 2 = laceration, 3 = avulsion; ^$1 = palmar, 2 = dorsal, 3 = equally affected