Table 1.

Cellularity in BAL fluid. Data presented as absolute cell numbers in broncoalveolar lavage and as cell differentials (percentage of counted cells). Monocyte differential < Young Non-Ventilated and Old Non-Ventilated.

	Young Non-Vent	Young LVT-HF	Young HVT-HF	Young HVT-LF	Old Non-Vent	Old	Old	Old
Lymphocytes (%)	1.58±0.8	5.89±4.1	4.69±3.4	2.5±5	2.66±0.7	3.79±1	9±4.2	6.9±3.2
Neutrophils (%)	0.33±0.2	0.67±0.4	3.14±3.1	0	0.33±0.1	4.42±3	8.42±7.2	6.4±6.2
Monocytes (%)	98.08±0.8	93.33±4.6	92.22±5.6	97.5±5	97±0.7	91.7±3.4	79.55±9.1 *	86.4±6.1

Data are presented as mean +/− st.dev N=4 for Young Non-Vent, 3 for Young LVT – HF, 6 for Young HVT – HF, 3 for Young HVT – LF, 6 for Old Non-Vent, 4 for Old LVT – HF, 4 for Old HVT – HF, 5 for Old HVT – LF

^*p<0.05.