Table 4.
Beta coefficients (b) and odds ratios (OR) in relation to the 5-year time-weighted average road traffic and railway noise exposure, respectively, and markers of obesity in pooled analyses of 11 Nordic cohortsa
| N/sample | n/cases | Model 1b | Model 2 (main model)c | |
|---|---|---|---|---|
| Road traffic noise | ||||
| Linear regression, β (95% CI) per 10 dB Lden | ||||
| BMI (kg/m2) | 162,639 | — | 0.04 (0.01, 0.06) | 0.05 (0.03, 0.08) |
| WC (cm) | 127,040 | — | 0.09 (0.02, 0.17) | 0.08 (0.00, 0.16) |
| Logistic regression, OR (95% CI) per 10 dB Lden | ||||
| Overweight (BMI ≥25 vs BMI<25) | 162,639 | 79,367 | 1.01 (1.00, 1.02) | 1.03 (1.01, 1.04) |
| Obesity (BMI≥30 vs BMI<25) | 102,823 | 19,584 | 1.06 (1.03, 1.08) | 1.06 (1.03, 1.08) |
| Central obesityd | 127,040 | 31,608 | 1.04 (1.02, 1.06) | 1.03 (1.01, 1.05) |
| Railway noisee | ||||
| Linear regression, β (95% CI) per 10 dB Lden | ||||
| BMI (kg/m2) | 145,281 | — | 0.09 (0.06, 0.12) | 0.08 (0.04, 0.11) |
| WC (cm) | 112,103 | — | 0.31 (0.21, 0.41) | 0.23 (0.14, 0.33) |
| Logistic regression, OR (95% CI) per 10 dB Lden | ||||
| Overweight (BMI ≥25 vs BMI<25) | 145,281 | 70,897 | 1.04 (1.02, 1.05) | 1.03 (1.02, 1.05) |
| Obesity (BMI≥30 vs BMI<25) | 91,103 | 17,822 | 1.07 (1.04, 1.10) | 1.06 (1.03, 1.09) |
| Central obesityd | 112,103 | 26,963 | 1.08 (1.05, 1.10) | 1.06 (1.04, 1.08) |
DCH, DNC, MDC, PPS, GOT-MONICA, SDPP, SIXTY, SNAC-K, SALT, SMC, FINRISK.
Model 1: adjusted for age, sex, recruitment year, and cohort.
Model 2 (main model):additionally adjusted for educational level, marital status, smoking status, physical activity, and area-level income.
Central obesity: momen: WC ≥88 cm, men: WC ≥102 cm.
SMC cohort is not included in the analysis due to absence of exposure data.
BMI indicates body mass index; WC, waist circumference; DCH, Diet, Cancer and Health cohort; DNC, Danish Nurses Cohort; FINRISK, the National FINRISK study; GOT-MONICA, Multinational Monitoring of Trends and Determinants in Cardiovascular Disease cohort (Gothenburg); MDC, Malmö Diet and Cancer study; PPS, Primary Prevention Study cohort; SALT, Stockholm Screening Across the Lifespan Twin study; SDPP, Stockholm Diabetes Prevention Program; SIXTY the Stockholm Cohort of 60-year-olds; SMC, The Swedish Mammography Cohort; SNAC-K, Swedish National Study of Aging and Care in Kungsholmen.