Table 2.
Relative Risks of Incident Type 2 Diabetes Mellitus According to Soft Drink and Juice Consumption in the Singapore Chinese Health Study, 1993–2004
Characteristic | Frequency of Consumption |
Ptrend | |||||||
Almost Never |
1–3/Month |
1/Week |
2–≥3/Weeka |
||||||
Relative Risk | 95% Confidence Interval | Relative Risk | 95% Confidence Interval | Relative Risk | 95% Confidence Interval | Relative Risk | 95% Confidence Interval | ||
Soft drink consumption | |||||||||
No. of cases | 1,615 | 247 | 111 | 300 | |||||
No. of person-yearsb | 185,645 | 25,285 | 13,104 | 25,140 | |||||
Model 1c | 1.0 | Referent | 1.14 | 0.99, 1.30 | 1.03 | 0.85, 1.25 | 1.46 | 1.29, 1.66 | <0.0001 |
Model 2d | 1.0 | Referent | 1.14 | 0.99, 1.30 | 1.02 | 0.84, 1.23 | 1.42 | 1.25, 1.62 | <0.0001 |
Model 3e | 1.0 | Referent | 1.11 | 0.97, 1.26 | 0.98 | 0.81, 1.29 | 1.34 | 1.17, 1.52 | <0.0001 |
Juice consumption | |||||||||
No. of cases | 1,871 | 223 | 80 | 99 | |||||
No. of person-yearsb | 205,272 | 24,603 | 10,030 | 9,269 | |||||
Model 1 | 1.0 | Referent | 1.04 | 0.90, 1.19 | 0.95 | 0.76, 1.18 | 1.23 | 1.01, 1.51 | 0.08 |
Model 2 | 1.0 | Referent | 1.04 | 0.90, 1.19 | 0.98 | 0.78, 1.22 | 1.29 | 1.05, 1.58 | 0.03 |
Model 3 | 1.0 | Referent | 1.00 | 0.87, 1.16 | 0.94 | 0.75, 1.18 | 1.24 | 1.01, 1.53 | 0.09 |
Model 4f | 1.0 | Referent | 1.00 | 0.87, 1.16 | 0.94 | 0.75, 1.18 | 1.24 | 1.01, 1.53 | 0.09 |
The highest category of consumption (2–≥3/week) is defined by the median value.
Person-year follow-up time.
Model 1: adjusted for age, sex, dialect, and year of interview.
Model 2: model 1 + educational level, smoking status, alcohol use, physical activity, saturated fat intake, dietary fiber intake, dairy intake, juice or soft drink intake depending on model, and coffee consumption.
Model 3: model 2 + body mass index (kg/m2) and energy intake (kcal/day).
Model 4: model 3 + weight gain (kg) continuously.