Reduction of nosocomial pneumonia after major burns by trace element supplementation: aggregation of two randomised trials

Table 3 Clinical outcomes

	Supplemented group,	Placebo group,	P value^a
	median (range)	median (range)
Length of mechanical ventilation (days)	5 (0 to 28)	12 (0 to 28)	0.28
Length of antibiotherapy (days)	13 (3 to 30)	20 (6 to 29)	0.021
Length of ICU stay (days)	28 (9 to 151)	39 (16 to 145)	0.18
Length of ICU stay per proportion of burned BSA (days per percentage of BSA)	0.63 (0.23 to 1.64)	0.99 (0.43 to 2.48)	0.002
Mortality	2 out of 21	1 out of 20	0.57

^aBy stratified log-rank test. BSA, body surface area; ICU, intensive care unit.

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