Admission numbers and characteristics of children under 5 years of age with pneumonia whose medical records were reviewed in preimplementation and postimplementation of oxygen systems in Lao district hospitals
| Control hospitals n=1319 | Intervention hospitals n=1403 | |||
| Pre* | Pre* | |||
| Patient numbers, n | 713 | 606 | 712 | 691 |
| Patient numbers by province n (%) | ||||
| Champasack | 62 (8.7) | 83 (13.7) | 161 (22.6) | 41 (5.9) |
| Luang Namtha | 146 (20.5) | 112 (18.5) | 69 (9.7) | 78 (11.3) |
| Oudomxay | 170 (23.8) | 81 (13.4) | 139 (19.5) | 211 (30.5) |
| Savannakhet | 235 (33.0) | 250 (41.3) | 144 (20.2) | 216 (31.3) |
| Sekong | 100 (14.0) | 80 (13.2) | 199 (27.9) | 145 (21.0) |
| Age in months, median (IQR) | 12 (6–24) | 15 (7–24) | 12 (6–24) | 12 (7–25) |
| Length of stay, median (IQR) | 2 (2–4) | 3 (2–4) | 2 (1–4) | 2 (1–3) |
| Pneumonia severity n (%) | ||||
| Non-severe pneumonia | 372 (52.2) | 396 (65.3) | 412 (57.9) | 423 (62.2) |
| Severe/very severe pneumonia | 341 (47.8) | 210 (34.7) | 300 (42.1) | 261 (37.8) |
*Refers to the preintervention era with medical records collected between 2007 and 2011. Data collection in hospitals in 2011 stopped once oxygen systems had been installed.
†Refers to the postintervention era with medical records collected between 2012 and 2013.