The role of surgical management of BCG vaccine-induced regional suppurative lymphadenitis in children: a 7 years' experience from one medical center

Table 2 Statistical analysis of the comparison of variables between seroma and no seroma formation groups

Variables	Overall n = 65	No seroma formation n = 45			Seroma formation n = 20			95% CI	P-value
Variables	Mean ± SD	Mean ± SD	Range	n	Mean ± SD	Range	n	95% CI	P-value
Symptom duration (months)	1.90 ± 5.12	2.03 ± 5.57	0.03^※− 36		1.63 ± 4.18	0.03^※–19		− 3.18–2.39	0.778^#
Involved skin				33			16		0.792*
Postoperative hospital stay (days)	6.02 ± 1.62	5.91 ± 1.66	3–9		6.25 ± 1.59	4–9		− 0.54–1.22	0.445^#

SD standard derivation; ^※larger mass was incidentally found by guardians in some cases; ^#Student's t-test; *Yates's corrected Chi-square test

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