Table 2.
Reproducibility of continuous glucose monitoring records and glycaemic variability indices in normoglycaemic subjects according to demographic data and lifestyle.
| n (%) | Reproducibility | Glycaemic variability | ||
|---|---|---|---|---|
| ICC (95% CI) | CV (95% CI) | MODD (95% CI) | ||
| Gender | ||||
| Females | 137 (35) | 0.31 (0.28, 0.34) | 14.5 (14.0, 15.0) | 0.68 (0.66, 0.71) |
| Males | 253 (65) | 0.28 (0.24, 0.32) | 13.9 (13.3, 14.6) | 0.68 (0.66, 0.71) |
| Age group (years) | ||||
| 18–39 | 160 (41) | 0.26 (0.21, 0.30) | 14.2 (13.6, 14.8) | 0.69 (0.66, 0.72) |
| 40–59 | 180 (46) | 0.29 (0.26, 0.36) | 14.4 (13.8, 15.0) | 0.67 (0.64, 0.70) |
| 60–81 | 50 (13) | 0.39 (0.32, 0.45) | 14.1 (12.8, 15.3) | 0.68 (0.62, 0.74) |
| Body mass index | ||||
| Normal weight | 149 (38) | 0.28 (0.23, 0.32) | 14.6 (14.0, 15.3) | 0.69 (0.65, 0.72) |
| Overweight | 151 (39) | 0.31 (0.27, 0.36) | 14.2 (13.6, 14.9) | 0.67 (0.64, 0.70) |
| Obese | 90 (23) | 0.28 (0.23, 0.33) | 13.8 (13.0, 14.7) | 0.69 (0.65, 0.74) |
| Alcohol consumption | ||||
| Abstainers | 153 (39) | 0.31 (0.27, 0.34) | 14.3 (13.7, 14.9) | 0.67 (0.64, 0.70) |
| Light drinkers | 197 (51) | 0.27 (0.23, 0.31) | 14.6 (13.9, 15.1) | 0.71 (0.68, 0.73) |
| Heavy drinkers | 40 (10) | 0.37 (0.29, 0.45) | 12.9 (11.8, 14.1) | 0.61 (0.55, 0.67) |
| Smoking | ||||
| Non-smokers | 197 (50) | 0.28 (0.24–0.31) | 14.7 (14.1, 15.2) | 0.70 (0.67, 0.73) |
| Ex-smokers | 97 (25) | 0.36 (0.31–0.40) | 13.8 (12.9, 14.6) | 0.64 (0.60, 0.67) |
| Smokers | 96 (25) | 0.29 (0.23–0.34) | 14.0 (13.9, 14.7) | 0.69 (0.65, 0.73) |
| Physical activity | ||||
| Inactive | 138 (35) | 0.29 (0.25–0.33) | 14.6 (13.9, 15.3) | 0.70 (0.66, 0.73) |
| Minimally active | 145 (37) | 0.32 (0.28–0.36) | 14.1 (13.5, 14.8) | 0.68 (0.64, 0.71) |
| HEPA | 107 (28) | 0.27 (0.22–0.31) | 14.0 (13.3, 14.7) | 0.67 (0.63, 0.71) |
| Daily number of meals | ||||
| 2–3 | 245 (63) | 0.31 (0.28–0.34) | 14.5 (14.0, 15.0) | 0.69 (0.66, 0.72) |
| 4 | 101 (26) | 0.27 (0.22–0.32) | 14.1 (13.3, 14.9) | 0.68 (0.64, 0.72) |
| 5+ | 43 (11) | 0.34 (0.28–0.39) | 13.4 (12.5, 14.3) | 0.64 (0.60, 0.68) |
| Calorie intake, kcal/day | ||||
| < 2000 | 174 (46) | 0.31 (0.27–0.35) | 15.0 (14.3, 15.6) | 0.70 (0.68, 0.73) |
| 2000–2500 | 118 (31) | 0.29 (0.25–0.35) | 13.8 (13.1, 14.5) | 0.66 (0.62, 0.70) |
| 2500+ | 87 (23) | 0.28 (0.23–0.33) | 13.8 (13.0, 14.6) | 0.67 (0.62, 0.71) |
| Carbohydrate intake, % | ||||
| < 45 | 85 (22) | 0.28 (0.23–0.33) | 14.4 (13.5, 15.3) | 0.68 (0.64, 0.73) |
| 45–54 | 242 (62) | 0.30 (0.27–0.34) | 14.4 (13.9, 14.9) | 0.68 (0.66, 0.71) |
| ≥ 55 | 52 (13) | 0.30 (0.24–0.35) | 14.0 (13.0, 15.0) | 0.67 (0.61, 0.72) |
ICC functional intraclass coefficient correlation, 95% CI 95% confidence interval, CV coefficient of variation, MODD mean of daily differences. Individuals with an alcohol consumption of 1–140 g/week were considered light drinkers, and those with > 140 g/week heavy drinkers. Alcohol abstainers and very occasional alcohol drinkers were pooled in the same category. Normal weight, body mass index (BMI) < 25 kg/m2; overweight, BMI 25–30 kg/m2; obese, BMI > 30 kg/m2. HEPA-active a high activity class.