Background
Outpatient register | |
Cohort 1 | S52.5–Distal radius fracture |
Cohort 2 | S52.6–Distal radius and ulnar fracture |
Cohort 3 | S52.5 or S52.6 and NCJ/NDJ29-99 codes for surgical treatment |
Inpatient register | |
Cohort 4 | S52.5–Distal radius fracture |
Cohort 5 | S52.6–Distal radius and ulnar fracture |
Cohort 6 | S52.5 or S52.6 and NCJ/NDJ29-99 codes for surgical treatment |
Aim
Methods
Study population
Data collection
Validation of diagnosis
Statistics
Results
Confirmation of diagnosis
Confirmed distal radius fracture (with or without distal ulna fracture) | S52.5 Distal radius fracture only | S52.6 Fracture of distal radius and distal ulna (defined as metaphyseal fracture) | Missing | No distal radius fracture | |
---|---|---|---|---|---|
PPV (95% CI) | PPV (95% CI) | PPV (95% CI) | Number | Number | |
Outpatient register | |||||
Cohort 1, S52.5 | 97% (94–99) | 94% (90–96) | 3% (1.5–6.5) | 1 | 8 |
Cohort 2, S52.6 | 92% (88–95) | 57% (51–64) | 35% (29–41) | 2 | 19 |
Cohort 3, surgery | 100% (99–100) | 95% (91–97) | 5% (3–9) | 2 | 0 |
Inpatient register | |||||
Cohort 4, S52.5 | 98% (95–99) | 93% (88–96) | 5% (3–9) | 1 | 5 |
Cohort 5, S52.6 | 95% (92–98) | 32% (26–38) | 63% (57–69) | 0 | 11 |
Cohort 6, surgery | 96% (93–98) | 79% (74–84) | 17% (12–22) | 4 | 9 |
Type of error | ||||
---|---|---|---|---|
Total number of unconfirmed | Transfer to register error | Coding error | Diagnostic error | |
Cohort 1 | 8 | No medical record corresponding with the site and date = 1 | Hand injury = 1 Proximal forearm fracture = 1 Proximal humerus fracture = 1 Complication of a DRF of older date = 3 | Wrist contusion = 1 |
Cohort 2 | 19 | Knee injury, no diagnosis or code for DRF = 1 | Hand injury = 3 Isolated distal ulna fracture = 9 Forearm shaft fracture = 2 Proximal forearm fracture = 1 Foot injury = 1 Complication of a DRF of older date = 2 | |
Cohort 3 | 0 | |||
Cohort 4 | 5 | Monteggia fracture – no coding for DRF = 1 | Isolated distal ulna fracture = 1 Proximal forearm fracture = 1 Complication of a DRF of older date = 2 | |
Cohort 5 | 11 | No code for DRF corresponding with the site and date = 1 | Hand injury = 2 Isolated distal ulna fracture = 1 Forearm shaft fracture = 6 Complication of a DRF of older date = 1 | |
Cohort 6 | 9 | Forearm shaft fracture = 3 Proximal forearm fracture = 5 Isolated distal ulna fracture = 1 |
Confirmation of surgical intervention
Outpatient Register Cohort 3 | Inpatient Register Cohort 6 | |
---|---|---|
Missing (%) | 2 (0.8%) | 4 (1.7%) |
Both from the missing cluster | All from the missing cluster | |
Confirmed surgery of the distal radius | 238 | 225 |
No surgery | 0 | 11 |
Surgical treated DRF PPV (95% CI) | 100% (99–100) | 95% (92–98) |
Confirmed method of fracture surgery | 235 | 224 |
Method of fracture surgery PPV (95% CI) | 99% (96–100) | 95% (91–97) |