Table 4.
Numbers and positive predictive values of potential DPN and diabetic foot ulcer
| Potential painful DPN, N=53 | Potential non-painful DPN, N=54 | Potential diabetic foot ulcer, N=53 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Medical record review, conclusion | PPV (95% CI) | Medical record review, conclusion | PPV (95% CI) | Medical record review, conclusion | PPV (95% CI) | ||||||||
| Non-painful DPN | Painful DPN | Not DPNa | DPN | Painful DPN | Non-painful DPN | Painful DPN |
Not DPNa |
DPN | Non-painful DPN |
Diabetic foot ulcer | Not diabetic foot ulcer | ||
| Total | 19 | 19 | 15 | 72 (58–83) | 36 (23–50) | 27 | 3 | 24 | 56 (41–69) | 50 (36–64) | 18 | 35 | 34 (22–48) |
| All G-codes and primary E-codesb | 17 | 18 | 10 | 78 (63–89) | 40 (24–54) | 22 | 3 | 9 | 74 (56–87) | 65 (47–80) | - | - | - |
| All G-codes | 15 | 15 | 5 | 86 (70–95) | 43 (26–61) | 16 | 1 | 7 | 71 (49–87) | 67 (45–84) | - | - | - |
Notes: aEither not polyneuropathy or polyneuropathy is likely caused by other diseases. bSecondary E-codes often denoted stroke or mononeuropathies.
Abbreviations: DPN, diabetic polyneuropathy; PPV, positive predictive value.