Table 2. Operative time by stump closure technique and case type.

Independent-samples (Welch) t-test; degrees of freedom (df) = 14 (emergency), 44 (elective), and 64 (overall).

Case type	Polymeric clip, minutes (mean ± SD)	Endoloop, minutes (mean ± SD)	Mean diff. (95% CI)	Test statistic	P-value
Emergency	41.86 ± 9.60 (n = 7)	58.40 ± 11.06 (n = 10)	-16.54 (-27.34 to -5.75)	t = -3.28	0.005
Elective	47.00 ± 9.84 (n = 27)	59.58 ± 12.12 (n = 24)	-12.58 (-18.86 to -6.31)	t = -4.04	<0.001
Overall	45.94 ± 9.87 (n = 34)	59.24 ± 11.66 (n = 34)	-13.29 (-18.53 to -8.06)	t = -5.08	<0.001