Table 2.
Treatments, mortality, and morbidities in patients of carbon monoxide poisoning in Taiwan between 1999 and 2012
| Variable | Total N (%) | Female N (%) | Male N (%) | p-valuea |
|---|---|---|---|---|
| Cases | 25,912 (100.0) | 13,111 (50.6) | 12,801 (49.4) | |
| Treatment | ||||
| Hyperbaric oxygen therapy | 0.450 | |||
| Yes | 6,279 (24.2) | 3,151 (24.0) | 3,128 (24.4) | |
| No | 19,633 (75.8) | 9,960 (76.0) | 9,673 (75.6) | |
| Cardiopulmonary resuscitation | 548 (2.1) | 243 (1.9) | 305 (2.4) | 0.003 |
| Treatment place | ||||
| ED | 18,986 (73.3) | 9,789 (74.7) | 9,197 (71.9) | < 0.001 |
| Transfer to hospitalization care | 4,062 (21.4) | 1,901 (19.4) | 2,161 (23.5) | < 0.001 |
| Hospitalization care only | 6,926 (26.7) | 3,322 (25.3) | 3,604 (28.2) | |
| Length of stay (day) | ||||
| ED to hospitalization care, median (IQR)b | 3 (2–6) | 2 (1–3) | 2 (1–4) | < 0.001 |
| Hospitalization stay, median (IQR)c | 3 (1–6) | 3 (1–5) | 3 (2–6) | < 0.001 |
| Mortality | ||||
| Immediate death | 104 (0.4) | 46 (0.4) | 58 (0.5) | 0.193 |
| 1 month | 407 (1.6) | 168 (1.3) | 239 (1.9) | < 0.001 |
| 3 months | 1,285 (5.0) | 518 (4.0) | 767 (6.0) | < 0.001 |
| 6 months | 1,554 (6.0) | 602 (4.6) | 952 (7.4) | < 0.001 |
| 1 year | 1,838 (7.1) | 690 (5.3) | 1,140 (8.9) | < 0.001 |
| 2 years | 2,231 (8.6) | 857 (6.5) | 1,374 (10.7) | < 0.001 |
| 5 years | 2,900 (11.2) | 1,097 (8.4) | 1,803 (14.1) | < 0.001 |
| Morbidity | ||||
| Neurological sequelae | 2,349 (9.1) | 1,090 (8.3) | 1,259 (9.8) | < 0.001 |
| 2 weeks | 602 (2.3) | 242 (1.9) | 360 (2.8) | < 0.001 |
| 6 weeks | 923 (3.6) | 355 (2.7) | 568 (4.4) | < 0.001 |
| 6 months | 1,209 (4.7) | 482 (3.7) | 727 (5.7) | < 0.001 |
| 12 months | 1,369 (6.2) | 570 (4.4) | 799 (6.2) | < 0.001 |
| Chronic respiratory failure | 1,282 (5.0) | 505 (3.9) | 777 (6.1) | < 0.001 |
| Long-term care | 16 (0.1) | 5 (0.04) | 11 (0.1) | 0.122 |
ED emergency department, IQR interquartile range
aComparison between females and males
bData for the patients who were transferred to hospitalization care from emergency department (N = 4,062)
cData for the patients who received hospitalization care only (N = 6,926)