Table
3: Logistic
regression modeling to predict odds of poor glycemic control.
|   | Univariate analysis | Multivariate analysis | ||
| Unadjusted
  OR (95% CI) | p
  Value | Adjusted
  OR (95% CI) | p
  Value | |
| Quintile
  of HbA1c variability |   |   |   |   | 
| 1st | Reference |   | Reference |   | 
| 2nd | 1.26
  (0.93-1.71) | 0.3716 | 1.16
  (0.85-1.59) | 0.3674 | 
| 3rd | 1.39
  (1.04-1.87) | 0.0574 | 1.05
  (0.77-1.42) | 0.8548 | 
| 4th | 1.78
  (1.34-2.38) | <
  0.0001 | 1.14
  (0.84-1.56) | 0.3872 | 
| 5th | 2.52
  (1.91-3.34) | <
  0.0001 | 0.98
  (0.69-1.38) | 0.3335 | 
| Absolute
  change in HbA1c | 1.09
  (0.98-1.22) | 0.1021 | 1.14
  (1.03-1.26) | 0.011 | 
| Mean
  HbA1c | 1.70
  (1.54-1.81) | <
  0.0001 | 1.70
  (1.52-1.90) | <
  0.0001 | 
| Age
  group (years) |   |   |   |   | 
| 65-74 | Reference |   | Reference |   | 
| 75-84 | 0.78
  (0.65-0.95) | 0.136 | 0.86
  (0.70-1.05) | 0.2073 | 
| ≥
  85 | 0.81
  (0.62-1.06) | 0.4653 | 0.93
  (0.70-1.24) | 0.6758 | 
| Gender |   |   |   |   | 
| Female | Reference |   | Reference |   | 
| Male | 1.06
  (0.89-1.26) | 0.5079 | 1.08
  (0.89-1.30) | 0.4542 | 
| Obesity | 1.18
  (0.93-1.49) | 0.1686 | 1.07
  (0.83-1.77) | 0.6078 | 
| Depression | 1.24
  (0.89-1.72) | 0.1963 | 1.04
  (0.67-1.60) | 0.8486 | 
| Chronic
  kidney disease | 1.24
  (1.01-1.53) | 0.0439 | 1.42
  (1.08-1.86) | 0.0113 | 
| Modified
  Charlson comorbidity index |   |   |   |   | 
| 0 | Reference |   | Reference |   | 
| 1-2 | 0.98
  (0.79-1.23) | 0.8795 | 0.98
  (0.77-1.25) | 0.3894 | 
| ≥
  3 | 1.01
  (0.81-1.25) | 0.9068 | 0.88
  (0.67-1.16) | 0.2147 | 
| DxCG
  risk score tertile |   |   |   |   | 
| 1st
  (0.066 – 3.312) | Reference |   | Reference |   | 
| 2nd
  (3.313-7.911) | 0.91
  (0.73-1.13) | 0.1439 | 0.90
  (0.71-1.15) | 0.2272 | 
| 3rd
  (7.911-178.784) | 1.09
  (0.89-1.35) | 0.1429 | 1.07
  (0.77-1.49) | 0.3885 | 
| Emergency
  department visit | 1.23
  (1.02-1.48) | 0.0293 | 1.28
  (0.99-1.64) | 0.0573 | 
| Number
  of outpatient visit | 1.01
  (0.99-1.03) | 0.2461 | 1.02
  (0.99-1.05) | 0.1492 | 
| Any
  hospitalization | 1.15
  (0.92-1.44) | 0.2067 | 0.98
  (0.73-1.31) | 0.8853 | 
| Number
  of PCP/internist visit | 0.99
  (0.98-1.01) | 0.648 | 0.98
  (0.97-0.99) | 0.0171 | 
| Number
  of specialist visit | 1.01
  (0.99-1.02) | 0.3181 | 1.02
  (1.00-1.04) | 0.0473 | 
| Number
  of distinct generic drug | 1.02
  (1.00-1.03) | 0.0479 | 0.99
  (0.97-1.01) | 0.3899 | 
| Insulin
  use | 1.20
  (1.64-2.43) | <
  0.0001 | 1.36
  (1.05-1.78) | 0.0226 | 
*OR: odds ratio; CI: confidence
interval