16 March 2021 : Original article
Use of Imputation and Decision Modeling to Improve Diagnosis and Management of Patients at Risk for New-Onset Diabetes After Transplantation
Vidit N. Munshi1ACDEF*, Soroush Saghafian2AEG, Curtiss B. Cook3BE, Sumhith Veda Aradhyula2C, Harini A. Chakkera4BEDOI: 10.12659/AOT.928624
Ann Transplant 2021; 26:e928624
Table 1 Observed and imputed HbA1c, FBG, and insulin use at 1, 4, and 12 months after transplant for kidney transplantation patients who did not have pre-transplant DM.
Variable | Observed data | Imputed/perfect collection | ||||
---|---|---|---|---|---|---|
n | Missing values | Mean* | n | Missing values | Mean* | |
1-month HbA1c | 197 | 106 | 5.6/38 | 303 | 0 | 5.6/38 |
4-month HbA1c | 203 | 100 | 5.6/38 | 303 | 0 | 5.6/38 |
12-month HbA1c | 250 | 53 | 5.8/40 | 303 | 0 | 5.8/38 |
1-month FBG | 303 | 0 | 112/6.2 | 303 | 0 | 112/6.2 |
4-month FBG | 289 | 14 | 103/5.7 | 303 | 0 | 103/5.7 |
12-month FBG | 274 | 29 | 103/5.7 | 303 | 0 | 103/5.7 |
On insulin at 1 month | 303 | 0 | 11.9% | 303 | 0 | 11.9% |
On insulin at 4 months | 303 | 0 | 13.9% | 303 | 0 | 13.9% |
On insulin at 12 months | 303 | 0 | 9.9% | 303 | 0 | 9.9% |
* Displayed as (%/mmol per mol) for HbA1c and (mg per dl/mmol per l) for FBG. 95% confidence intervals not displayed, but were the same between observed and imputed variables |