Table 6.
Overall oxygen costs (US$) for a standardised paediatric ward* and a standardised all-age health facility† (costs in parentheses are costs without shipping costs included)
| PS | Solar-PS3 | Concentrator | Cylinder |
|||||
|---|---|---|---|---|---|---|---|---|
|
No leakage |
10% leakage |
70% leakage |
||||||
| Standardised paediatric facility using 0.5 mL/year |
Cost per litre oxygen |
Gambia |
0.0110 (0.0100) |
0.0146 (0.0131) |
0.0035 |
0.0096 |
0.0107 |
0.0321 |
| Fiji |
0.0108 (0.0092) |
0.0146 (0.0131) |
0.0033 |
0.0201 |
0.0224 |
0.0755 |
||
| Cost per annum |
Gambia |
5515 (4725.6) |
7322 (6533.4) |
1762 |
4815 |
5350 |
17832 |
|
| Fiji |
5391 (4601.6) |
7322 (6533.4) |
1638 |
10068 |
11187 |
37289 |
||
| Standardised all-age facility using 1.7 mL/year |
Cost per litre Oxygen |
Gambia |
0.0119 (0.0103) |
0.0151 (0.0135) |
0.0044 |
0.0320 |
0.0356 |
0.1067 |
| Fiji |
0.0115 (0.0099) |
0.0151 (0.0135) |
0.0040 |
0.0679 |
0.0755 |
0.2264 |
||
| Cost per annum |
Gambia |
5932 (5142.6) |
7566 (6767.4) |
2179.0 |
16006 |
17785 |
59282 |
|
| Fiji | 5755 (4965.6) | 7566 (6767.4) | 2002 | 33967 | 37741 | 125803 | ||
PS – power storage, Solar-PS – solar-power storage
*Standardised paediatric ward used here comprises 15 beds, 500 000L of oxygen used annually, 1286 patients/years (a bed occupancy of approximately 100% across a year – a moderate-high occupancy facility), a 6% prevalence of hypoxemia amongst admissions, and average length of oxygen treatment of 3 days at an average 1.5 L/min flow of oxygen, a total average hospital stay of 5 days, and 5556 oxygen concentrator hours of running annually shared between 2 concentrators (the regulation number for a facility this size, run from one PS or Solar-PS system) with a lifespan of 5 years.
†Standardised all-age facility used here comprises 30 beds, 1.7 mL of oxygen used annually, an average bed occupancy of 67% (reflecting a moderate occupancy facility), half of admissions being children and half adults, a 6% prevalence of hypoxaemia amongst children admitted and a 9% prevalence of hypoxaemia among adults, and average length of oxygen treatment of 3 days at an average 1.5 L/min flow of oxygen for children and 5 L/min for adults, a total average hospital stay of 5 days, and 7906 oxygen concentrator hours of running annually shared between 3 concentrators (the regulation number for a facility this size, run from one PS or Solar-PS system) with a lifespan of 5 years.