Table 2.
Mean healthcare costs per patient per year (mean (SD) in Euro) (including both total and specific costs) for primary and secondary care IBS patients and matched controls in the years before and after the diagnosis of IBS
| T = −3 Mean (SD) | T = −2 Mean (SD) | T = −1 Mean (SD) | Mean annual before (SD) | T = +1 Mean (SD) | T = +2 Mean (SD) | T = +3 Mean (SD) | Mean annual after (SD) | Mean dif (SD) | P value difference | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
| GPs | Primary care patients | – | 98 (103) | 104 (103) | 102 (103) | 129 (120) | 125 (130) | 127 (127) | 127 (125) | 25 (121) | 0.15 |
| Secondary care patients | 93 (90) | 102 (97) | 142 (119) | 122 (110) | 147 (165) | 155 (158) | 168 (181) | 154 (166) | 32 (146) | ||
| Primary care controls | – | 67 (67) | 74 (94) | 72 (87) | 68 (78) | 68 (75) | 75 (95) | 70 (81) | −2 (82) | 0.13 | |
| Secondary care controls | 74 (88) | 77 (99) | 78 (98) | 77 (97) | 78 (96) | 80 (95) | 83 (96) | 80 (2) | 3 (96) | ||
| Hospital specialistsa | Primary care patients | – | 1168 (2645) | 1087 (2520) | 1111 (2551) | 1345 (2572) | 1391 (2932) | 1544 (2822) | 1409 (2758) | 298 (2719) | <0.01× |
| Secondary care patients | 1139 (3780) | 1063 (2763) | 1500 (3713) | 1303 (3450) | 3695 (6400) | 2678 (6198) | 2815 (5783) | 3173 (6230) | 1870 (5269) | ||
| Primary care controls | – | 591 (1812) | 874 (2504) | 792 (2325) | 822 (2328) | 1048 (2882) | 1051 (2553) | 955 (2585) | 164 (2537) | 0.16 | |
| Secondary care controls | 1259 (4742) | 1319 ± 4806) | 1342 (6006) | 1322 (5457) | 1294 (8598) | 1333 (4987) | 1441 (5071) | 1337 (5149) | 15 (5277) | ||
| Medication | Primary care patients | – | 401 (657) | 448 (680) | 434 (672) | 522 (792) | 580 (911) | 751 (2087) | 598 (1269) | 164 (1177) | <0.01× |
| Secondary care patients | 477 (992) | 545 (1143) | 630 (1227) | 579 (1169) | 939 (1707) | 999 (1797) | 1163 (2087) | 1005 (1822) | 426 (1587) | ||
| Primary care controls | – | 398 (783) | 481 (1360) | 457 (1220) | 449 (1252) | 471 (1231) | 490 (1435 | 466 (1291) | 10 (1278) | 0.97 | |
| Secondary care controls | 525 (1398) | 555 (1390) | 558 (1452) | 552 (1434) | 561 (1597) | 558 (1346) | 561 (1304) | 560 (1459) | 8 (1445) | ||
| Totala | Primary care patients | – | 1667 (2922) | 1640 (2898) | 1648 (2898) | 1996 (2923) | 2096 (3269) | 2423 (3746) | 2134 (3258) | 486 (3192) | <0.01× |
| Secondary care patients | 1708 (4080) | 1710 (3204) | 2272 (4145) | 2003 (3863) | 4781 (7058) | 3832 (6951) | 4146 (6670) | 4331 (6958) | 2328 (5888) | ||
| Primary care controls | – | 1056 (2236) | 1429 (3052) | 1320 (2840) | 1338 (2872) | 1586 (3369) | 1616 (3156) | 1492 (3120) | 171 (3068) | 0.26 | |
| Secondary care controls | 1858 (5295) | 1950 (5376) | 1978 (6501) | 1951 (6002) | 1933 (5893) | 1971 (5490) | 2086 (5558) | 1976 (5692) | 26 (5812) | ||
aExcluding psychiatric care; ×, significant difference at alpha = 0.05
T = −3 indicates three years before diagnosis, T = +1 one year after diagnosis and so forth