Table 1.
Demographic data, underlying comorbidities, and concomitant conditions 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) | |
| Age (years) | 36.0 ± 16.5 | 35.2 ± 16.0 | 36.8 ± 16.9 | <0.001 |
| Age group (years) | < 0.001 | |||
| < 20 | 3,462(13.4) | 1,853(14.1) | 1,609(12.6) | |
| 20–35 | 9,657(37.3) | 4,999(38.1) | 4,658(36.4) | |
| 35–50 | 8,015(30.9) | 4,075(31.1) | 3,940(30.8) | |
| 50–65 | 3,291(12.7) | 1,552(11.8) | 1,739(13.6) | |
| 65–80 | 1,081(4.2) | 451(3.4) | 630(4.9) | |
| > 80 | 406(1.6) | 181(1.4) | 225(1.8) | |
| Seasonb | < 0.001 | |||
| Spring | 6,392(24.7) | 3,201(24.4) | 3,191(24.9) | |
| Summer | 4,483(17.3) | 2,052(15.7) | 2,431(19.0) | |
| Autumn | 4,899(18.9) | 2,296(17.5) | 2,603(20.3) | |
| Winter | 10,138(39.1) | 5,562(42.4) | 4,576(35.8) | |
| Residential region | < 0.001 | |||
| North | 15,954(61.6) | 8,395(64.0) | 7,559(59.1) | |
| Center | 4,123(15.9) | 1,959(14.9) | 2,164(16.9) | |
| South | 5,346(20.6) | 2, 535(19.3) | 2,811(22.0) | |
| East | 489(1.9) | 222(1.7) | 267(2.1) | |
| Monthly incomec,d | ||||
| < 1,007 NTD | 6,635 (25.6) | 3,820 (29.1) | 2,815 (22.0) | < 0.001 |
| 1,007 NTD − 16,500 NTD | 6,848 (26.4) | 3,039 (23.2) | 3,809 (29.7) | |
| 16,500 NTD − 21,000 NTD | 5,985 (23.1) | 3,117(23.8) | 2,869 (22.4) | |
| > 21,000 NTD | 6,444 (24.9) | 3,135 (23.9) | 3,309 (25.9) | |
| Underlying comorbidity | ||||
| Alcohol abuse | 950 (3.7) | 265 (2.0) | 685 (5.4) | < 0.001 |
| Mental disorder | 8,304 (32.1) | 4,703 (35.9) | 3,601 (28.1) | < 0.001 |
| Concomitant condition | ||||
| Suicide | 5,274 (20.4) | 2,339 (17.8) | 2,935 (22.9) | < 0.001 |
| Drug poisoning | 272 (1.1) | 141 (1.1) | 131 (1.0) | 0.681 |
| Burn | 1,118 (4.3) | 431 (3.3) | 687 (5.4) | < 0.001 |
| Acute respiratory failure | 1,883 (7.3) | 784 (6.0) | 1,099 (8.6) | < 0.001 |
| Acute myocardial injury | 58 (0.2) | 18 (0.1) | 40 (0.3) | 0.003 |
| Acute hepatitis | 58 (0.2) | 20 (0.2) | 38 (0.3) | 0.014 |
| Acute renal failure | 324 (1.3) | 76 (0.6) | 248 (1.9) | < 0.001 |
| Shock | 116 (0.5) | 51 (0.4) | 65 (0.5) | 0.152 |
NTD New Taiwan Dollars, EUR Euro, IQR interquartile range
aComparison between females and males
bSpring: March, April, and May; summer: June, July, and August; autumn: September, October, and November; winter: December, January, and February
cMedian (IQR) = 16,500 NTD (1,007 NTD − 21,000 NTD)
dAccording to the exchange rate between NTD and EUR in 2012: 1,007 NTD = 31.2 EUR; 16,500 NTD = 511.2 EUR; 21,000 NTD = 649.0 EUR