The correlation of total number and different activities of health care workers in NICU with the colony population of air bacteria in the room

Objective To explore the effects of the total number of medical staff working in the room and their different activities on the colony population of air bacteria in NICU. Methods To count the colony population of air bacteria under different conditions and analyze the influenced factors . Results The colony population of room air bacteria was well correlated and statistically significant with the number of medical staff working in the room(r=0.78,P0.01) ,but not correlated with using of the air cleaner(r=-0.2,P=0.36). Conclusion The colony population of room air bacteria is influenced by the number of health care workers in the NICU and different kind of their activities. Practice of staffs in the room,especially non-medical staff,should be controlled strictly. The effect of the air cleaner on the colony population of bacteria in room air should be further investigated.