Table 1.

Porosity for single lumen conduits and multiple lumen conduits with various porogen to polymer ratios

Single lumen conduit		Multiple lumen conduit
Porogen to polymer ratio	Total porosity (%)	Porogen to polymer ratio	Number of channels (diameter)	Total porosity (%)	Porosity due to channels (%)
0:1	50.5±3.5	5:1	12 (150 µm)	87.9±0.8	2.2±0.1
2:1	73.5±6.3	10:1	12 (150 µm)	92.9±0.4	2.3±0.1
5:1	80.1±6.4	12:1	12 (150 µm)	93.2±0.7	2.5±0.2
10:1	90.0±1.6	12:1	8 (250 µm)	93.6±0.1	4.2±0.2
15:1	91.6±1.5	15:1	12 (150 µm)	94.5±0.3	2.4±0.1

The shaded region indicates the variation in number of channels.