Table 2.

Comparison of clinical outcomes of two groups of Chinese patients who were randomized to receive either normal saline (NS) and heparin saline (HS) in peripheral venous catheter (PVC) sealing.

	NS group n = 317 PVCs	HS group n = 292 PVCs
Primary outcome measure
Catheter  obstruction	59 (18.61%)	44 (15.07%)
Secondary outcome measures
Median duration  time, h	72 (24–216)	72 (24–216)
Phlebitis	37 (11.67%)	43 (14.73%)
Infiltration	94 (29.65%)	80 (27.40%)
Accidental  removal	8 (2.52%)	3 (1.03%)

Data presented as n of PVCs (%) or median (min–max).

No significant between-group differences (P > 0.05); Kruskal–Wallis test for continuous variables and χ²-test for categorical variables.