Table 1.
Characteristics of study subjects at the baseline
| Amphetamine‐related disorders | With | Without | P | ||
|---|---|---|---|---|---|
| Variables | n | % | n | % | |
| Total | 17,075 | 25.00 | 51,225 | 75.00 | |
| Gender | 0.999 | ||||
| Male | 11,992 | 70.23 | 35,976 | 70.23 | |
| Female | 5,083 | 29.77 | 15,249 | 29.77 | |
| Age (years) | 43.85 ± 18.40 | 44.12 ± 16.98 | 0.078 | ||
| Age group (years) | 0.999 | ||||
| 20–49 | 12,185 | 71.36 | 36,555 | 71.36 | |
| 50–64 | 1,750 | 10.25 | 5,250 | 10.25 | |
| ≧65 | 3,140 | 18.39 | 9,420 | 18.39 | |
| Education (years) | <0.001 | ||||
| 0–11 | 11,840 | 69.34 | 17,771 | 34.69 | |
| ≧12 | 5,235 | 30.66 | 33,454 | 65.31 | |
| Insured premium (NT$) | <0.001 | ||||
| <18,000 | 16,280 | 95.34 | 46,787 | 91.34 | |
| 18,000‐34,999 | 234 | 1.37 | 3,312 | 6.47 | |
| ≧35,000 | 561 | 3.29 | 1,126 | 2.20 | |
| CCI_R group | <0.001 | ||||
| 0 | 13,137 | 76.94 | 37,950 | 74.08 | |
| 1 | 2,185 | 12.80 | 6,890 | 13.45 | |
| 2 | 781 | 4.57 | 2,508 | 4.90 | |
| 3 | 443 | 2.59 | 1,958 | 3.82 | |
| ≧4 | 529 | 3.10 | 1,919 | 3.75 | |
| Location | <0.001 | ||||
| Northern Taiwan | 7,379 | 43.22 | 20,708 | 40.43 | |
| Middle Taiwan | 4,075 | 23.87 | 14,135 | 27.59 | |
| Southern Taiwan | 4,612 | 27.01 | 13,126 | 25.62 | |
| Eastern Taiwan | 974 | 5.70 | 3,034 | 5.92 | |
| Outlets islands | 35 | 0.20 | 222 | 0.43 | |
| Urbanization level | <0.001 | ||||
| 1 (The highest) | 5,999 | 35.13 | 17,617 | 34.39 | |
| 2 | 7,317 | 42.85 | 21,063 | 41.12 | |
| 3 | 1,318 | 7.72 | 4,585 | 8.95 | |
| 4 (The lowest) | 2,441 | 14.30 | 7,960 | 15.54 | |
| Level of care | <0.001 | ||||
| Medical center | 5,495 | 32.18 | 15,064 | 29.41 | |
| Regional hospital | 9,081 | 53.18 | 15,638 | 30.53 | |
| Local hospital | 2,499 | 14.64 | 20,523 | 40.06 | |
P, Chi‐square/ Fisher exact test on category variables and t‐test on continue variables; NT$, New Taiwan Dollars; CCI_R, Charlson Comorbidity Index, dementia removed.