Univariable linear regression analysis of predictors of log-transformed components of cost according to age groups: <40, 40–49, 50–59, 60–69, 70–79 and ≥80 years
| Patients n | Mean (95% CI) cost per stay EUR | p-value | |
| Nursing activity | |||
| <40 | 54 | 817 (651–983) | |
| 40–49 | 65 | 1046 (876–1216) | 0.114# |
| 50–59 | 52 | 1189 (834–1544) | 0.739# |
| 60–69 | 100 | 1097 (896–1298) | 0.325# |
| 70–79 | 157 | 1407 (1256–1558) | <0.001# |
| ≥80 | 193 | 1318 (1183–1452) | <0.001# |
| ANOVA for linear trend p<0.0001 | |||
| Medical activity | |||
| <40 | 54 | 980 (846–1114) | |
| 40–49 | 65 | 1127 (994–1260) | 0.574# |
| 50–59 | 52 | 1099 (916–1281) | 0.980# |
| 60–69 | 100 | 1245 (1087–1402) | 0.157# |
| 70–79 | 157 | 1456 (1323–1590) | <0.001# |
| ≥80 | 193 | 1469 (1354–1583) | <0.001# |
| ANOVA for linear trend p<0.0001 | |||
| Pharmacy | |||
| <40 | 54 | 216 (148–285) | |
| 40–49 | 65 | 388 (168–608) | 0.658# |
| 50–59 | 52 | 362 (213–511) | 0.212# |
| 60–69 | 100 | 348 (244–452) | 0.624# |
| 70–79 | 157 | 415 (327–502) | 0.003# |
| ≥80 | 193 | 303 (238–367) | 0.131# |
| ANOVA for linear trend p=0.315 | |||
| Administrative cost | |||
| <40 | 54 | 225 (192–257) | |
| 40–49 | 65 | 262 (228–295) | 0.586# |
| 50–59 | 52 | 282 (223–340) | 0.980# |
| 60–69 | 100 | 270 (237–303) | 0.733# |
| 70–79 | 157 | 332 (298–366) | <0.001# |
| ≥80 | 193 | 327 (299–355) | <0.001# |
| ANOVA for linear trend p<0.0001 | |||
| Hospitalisation accommodation | |||
| <40 | 54 | 463 (393–533) | |
| 40–49 | 65 | 610 (532–687) | 0.002# |
| 50–59 | 52 | 618 (505–730) | 0.107# |
| 60–69 | 100 | 637 (549–726) | 0.044# |
| 70–79 | 157 | 805 (727–883) | <0.001# |
| ≥80 | 193 | 833 (755–910) | <0.001# |
| ANOVA for linear trend p<0.0001 | |||
#: comparisons from baseline (age <40 years) with Bonferroni's correction for the multiple comparisons.