Table 4. Descriptive statistics of cost (rounded dollars), by comorbidity and age.
| ADRG1 | Statistic | Unrelated comorbidity | Age | ||||||
|---|---|---|---|---|---|---|---|---|---|
|
|
|
||||||||
| Yes | No | 1-64 | 65-69 | 70-74 | 75-79 | 80-84 | 85 + | ||
| Biliary tract procedures | Mean | $4,441 | $3,401 | $3,575 | $3,207 | $3,710 | $3,808 | $4,431 | $4,726 |
| Standard deviation | 2,137 | 1,684 | 1,742 | 1,716 | 1,842 | 1,804 | 2,191 | 1,735 | |
| Frequency | 307 | 958 | 125 | 431 | 311 | 228 | 111 | 59 | |
| Cirrhosis and alcoholic hepatitis | Mean | 2,784 | 2,690 | 2,682 | 2,642 | 3,085 | 3,158 | 2,442 | 2,070 |
| Standard deviation | 1,831 | 1,696 | 1,748 | 1,752 | 2,136 | 1,554 | 1,734 | 1,039 | |
| Frequency | 230 | 69 | 79 | 113 | 55 | 30 | 15 | 7 | |
| Diabetes mellitus | Mean | 2,330 | 1,820 | 1,959 | 1,889 | 2,044 | 2,163 | 2,009 | 2,262 |
| Standard deviation | 1,442 | 1,066 | 1,276 | 1,165 | 1,269 | 1,304 | 1,286 | 1,166 | |
| Frequency | 873 | 1,401 | 420 | 593 | 535 | 364 | 228 | 134 | |
| Benign prostatic hypertrophy | Mean | 1,940 | 1,206 | 1,654 | 1,178 | 1,313 | 1,409 | 1,490 | 1,924 |
| Standard deviation | 1,452 | 826 | 1,677 | 963 | 861 | 892 | 1,170 | 1,398 | |
| Frequency | 84 | 284 | 21 | 110 | 99 | 75 | 36 | 27 | |
1
ARDG = adjacent diagnosis-related groups.