Table 1. Multivariable linear regression model to predict retested blood glucose (mg/dl) after initiation of insulin infusion.
| Covariatesa | Coefficient | Standard error | Lower limit of 95% CI | Upper limit of 95% CI | p |
|---|---|---|---|---|---|
| Glucose−0.5 | 34.33 | 8.81 | 17.07 | 51.59 | <0.001 |
| Glucose-1.96 | 94.00 | 1.60 | 90.85 | 97.14 | <0.001 |
| (Insulin rate-2.85) | −1.06 | 0.33 | −1.70 | −0.42 | <0.001 |
| (Time interval)2-8.13 | −0.002 | 0.0006 | −0.004 | −0.001 | <0.001 |
| Time interval-0.35 | −18.90 | 2.30 | −23.41 | −14.39 | <0.001 |
| (Dextrose rate)0.5 | 22.02 | 8.58 | 5.20 | 38.84 | 0.01 |
| PO volume | −0.02 | 0.01 | −0.03 | 0.00 | 0.06 |
| TPN volume | 0.07 | 0.03 | 0.02 | 0.12 | 0.01 |
| Lactate (mmol/l) | 0.87 | 0.23 | 0.41 | 1.32 | 0.00 |
| History of congestive heart failure | 2.64 | 1.18 | 0.33 | 4.95 | 0.03 |
| History of renal failure | −3.13 | 1.87 | −6.78 | 0.53 | 0.09 |
| History of liver disease | 4.50 | 2.03 | 0.52 | 8.47 | 0.03 |
| (Glucose−0.5) × (Insulin rate-2.85) | 10.92 | 4.34 | 2.41 | 19.43 | 0.01 |
| (Glucose-1.96) × (Insulin rate-2.85) | 1.60 | 0.67 | 0.28 | 2.91 | 0.02 |
| Constant | 186.52 | 0.98 | 184.61 | 188.44 | <0.001 |
Notes.
Number of obs =4,593, F(14, 4578) = 1787.14, Prob >F = 0.0000, R-squared = 0.8453, Adj R-squared = 0.8449, Root MSE = 30.569.
- PO
- by mouth, orally (from the Latin “per os,” by mouth)
- TPN
- total parental nutrition
a
Some covariates were centered and transformed with fractional polynomials.