Diagnostic codes associated with sickness absences of different lengths (for sickness absence certificates given by a physician), 2014–2016, n=number of sickness absence certificates
| ICD-10 | 1yFA, n=19 506 | pFA, n=10 117 | Non-FA, n=74 176 | ||||||
| 1–3 days, n=8597 | 4–14 days, n=8261 | ≥15 days, n=2648 | 1–3 days, n=4732 | 4–14 days, n=4357 | ≥15 days, n=1028 | 1–3 days, n=39 566 | 4–14 days, n=28 243 | ≥15 days, n=6367 | |
| n (%) | n (%) | n (%) | n (%) | n (%) | n (%) | n (%) | n (%) | n (%) | |
| J00-J99 Diseases of the respiratory system | 4020 (47) | 1367 (17) | 48 (2) | 2150 (45) | 810 (17) | 19 (2) | 20 856 (53) | 6570 (23) | 118 (2) |
| M00-M99 Diseases of the musculoskeletal system and connective tissue | 1545 (18) | 3678 (45) | 1248 (47) | 1028 (22) | 2042 (47) | 483 (47) | 5585 (14) | 9820 (35) | 1982 (31) |
| S00-T98 Injury, poisoning and certain other consequences of external causes | 463 (5) | 1045 (13) | 366 (14) | 221 (5) | 461 (11) | 136 (13) | 2100 (5) | 4640 (16) | 1471 (23) |
| F00-F99 Mental and behavioural disorders | 281 (3) | 809 (10) | 439 (17) | 165 (4) | 353 (8) | 164 (16) | 829 (2) | 2171 (8) | 948 (15) |
| A00-B99 Certain infectious and parasitic diseases | 603 (7) | 145 (2) | 4 (0) | 255 (5) | 52 (1) | 4 (0) | 2749 (7) | 792 (3) | 35 (1) |
| Others | 1685 (20) | 1217 (15) | 543 (21) | 913 (19) | 639 (15) | 222 (22) | 7447 (19) | 42 500 (15) | 1813 (28) |
FA status was defined as the top decile of attenders (FA 10%, FA10).
1yFA, patients who were in the top decile of attenders in 2014; ICD-10, International Classification of Diseases, 10th edition; non-FA, patients who were never in the top decile were considered as a reference group, non-FAs; PFA, patients who were in the top decile in all three study years (2014, 2015 and 2016).