Abstract 1848

In absence of agreed indications for N, B and P in babies with assisted ventilation, practices may vary between units.

Objective: To determine variation in prevalence on N, B and P in babies who receive assisted ventilation.

Method: Analyses of birthweight (BW), mean days on assisted ventilation (DV), and use of N, B and P from reports to CANICU in 1996-97.

Results: In 7,535 babies (mean DV = 9.0) use of N among sites varied from 21.4 - 87.7% (mean 57.0%); B from 0.0 -58.8% (mean 14.0%) and P from 0.1-40.8% (mean 15.6%). Hospitals with low N use also tended to have low B use. The use of N or B was not correlated with illness severity (SNAPII) but was correlated with treatment intensity (NTIISS) -N (P=.004), B (P=.04).

Conclusions: The considerable site variation in use of N, B, and P, and lack of correlation with illness severity suggests variation in physician preference. Indications for N, B, and P in newborn babies with assisted ventilation need to be more clearly defined.

Funded by the Medical Research Council of Canada.