Table 2.
Regression coefficients (estimated changes in screening blood glucose in mg/dl [mmol/l]), 95% confidence intervals for estimates and P values for the associations between screening blood glucose and each of breed, body weight, body condition score (BCS), behaviour score during screening blood sampling, fasting blood glucose concentration and carbohydrate intake from 2–24 h before sampling for healthy cats ⩾8 years of age
| Variable and category | Adjusted regression coefficient * | 95% confidence interval | P |
|---|---|---|---|
| Breed (Burmese/Burmese cross relative to non-Burmese) |
−8.0
†
(−0.4) |
−58.0 to 42.0 (−3.2 to 2.3) |
0.754 |
| Body weight (kg) | −7.1
‡
(−0.4) |
−31.4 to 17.3 (−1.7 to 1.0) |
0.570 |
| BCS | 9.9 (0.6) |
−15.8 to 35.7 (−0.9 to 2.0) |
0.450 |
| Behaviour score: | 0.260 § | ||
| 1 relative to 0 | 31.1 (1.7) |
−7.7 to 69.8 (−0.4 to 3.9) |
0.116 |
| 2 relative to 0 | 15.1 (0.8) |
−25.2 to 55.5 (−1.4 to 3.1) |
0.463 |
| 3 or 4 relative to 0 | 50.6 (2.8) |
−8.9 to 110.1 (−0.5 to 6.1) |
0.095 |
| Fasting blood glucose concentration (mmol/l) | 11.8
¶
∞
(0.7) |
−13.3 to 37.0 (−0.7 to 2.1) |
0.355 |
| Carbohydrate intake from 2–24 h before sampling (g) | −0.2
#
(0.0) |
−4.8 to 4.4 (−0.3 to 0.2) |
0.925 |
Adjusted for the other five variables in the model
Screening blood glucose concentration was estimated to be 8 mg/dl (0.4 mmol/l) lower in Burmese/Burmese cross relative to non-Burmese (95% confidence interval 58.0 mg/dl [3.2 mmol/l] lower to 42.0 mg/dl [2.3 mmol/l] higher; P = 0.754)
For each additional kg body weight, screening blood glucose concentration was estimated to be 7.1 mg/dl (0.4 mmol/l) lower (95% confidence interval 31.4 mg/dl [1.7 mmol/l] lower to 17.3 mg/dl [1.0 mmol/l] higher; P = 0.570)
Overall P value for behaviour score
For each 18 mg/dl (1 mmol/l) increase in fasting blood glucose concentration, screening blood glucose concentration was estimated to be 11.8 mg/dl (0.7 mmol/l) higher (95% confidence interval 13.3 mg/dl [0.7 mmol/l] lower to 37.0 mg/dl [2.1 mmol/l] higher; P = 0.355)
After adjusting only for breed, BCS and behaviour score, for each 18 mg/dl (1 mmol/l) increase in fasting blood glucose concentration, screening blood glucose concentration was estimated to be 10.1 mg/dl (0.6 mmol/l) higher (95% confidence interval 7.4 mg/dl [0.4 mmol/l] lower to 27.6 mg/dl [1.5 mmol/l] higher; P = 0.259)
For each 1 g increase in carbohydrate intake, screening blood glucose concentration was estimated to be 0.2 mg/dl (0.0 mmol/l) lower (95% confidence interval 4.8 mg/dl [0.3 mmol/l] lower to 4.4 mg/dl [0.2 mmol/l] higher; P = 0.925)