Percutaneous insertion of peritoneal dialysis catheter is a safe and effective technique irrespective of BMI

BMC Nephrology

Table 4 Subgroup analysis for one-year catheter survival by BMI (Percutaneous versus Surgical)

one-year catheter survival	Percutaneous (n = 83)		Surgical (n = 95)		OR_MH (95% CI)	P-value
one-year catheter survival	BMI > 28 (n = 12)	BMI ≤ 28 (n = 71)	BMI > 28 (n = 10)	BMI ≤ 28 (n = 85)	OR_MH (95% CI)	P-value
Dysfunction-free [n (%)]	9 (40.91)	50 (32.05)	9 (40.91)	62 (39.74)	0.99 (0.40 to 2.45)	0.98
Infection-free [n (%)]	9 (40.91)	54 (34.62)	5 (22.73)	60 (38.46)	3.04 (1.04 to 8.87)	0.03
Dysfunction-and-infection-free [n (%)]	8 (36.36)	46 (29.49)	5 (22.73)	55 (35.26)	1.52 (0.73 to 3.17)	0.26
Overall catheter survival [n (%)]	10 (45.45)	58 (37.18)	9 (40.91)	68 (43.59)	1.71 (0.41 to 7.13)	0.46

Variables are presented as number and percentage. The percentage is the proportion of survival cases in the relevant subgroup. Subgroup analysis was performed by stratified chi-square test. Catheter dysfunction-free survival was defined as total length of time from catheter insertion to revisionary surgery or removal due to mechanical dysfunction only. Catheter infection-free survival was defined as total length of time from catheter insertion to peritonitis or catheter related infections. Catheter dysfunction-and-infection-free survival was defined as total length of time from catheter insertion either to revisionary surgery or removal due to mechanical dysfunction, or to infectious complications (peritonitis, or catheter related infections). The overall catheter survival was defined as total length of time from catheter insertion to removal. Subgroup A: data in the two columns of BMI > 28, subgroup B: data in the two columns of BMI ≤ 28. BMI Body mass index

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