Table 3.
Associations between self-reported traffic noise in bedroom and continuous obesity markers stratified by sex
| BMI, kg/m2 | WC, cm | |||||
|---|---|---|---|---|---|---|
| N | Slope (= beta) (95% CI) | N | Slope (= beta) (95% CI) | |||
| In your bedroom, can you hear traffic noise? | M1 a | Women (ref no) | 3123 | 2880 | ||
| Little | 3057 | 0.33 (0.10 to 0.57)* | 2876 | 0.85 (0.22 to 1.48)* | ||
| Much | 385 | 0.42 (-0.07 to 0.91) | 385 | 1.28 (-0.06 to 2.62) | ||
| Very much | 85 | 1.46 (0.47 to 2.45)* | 75 | 5.69 (2.93 to 8.45)* | ||
| Men (ref no) | 2849 | 2722 | ||||
| Little | 2583 | 0.02 (-0.19 to 0.22) | 2408 | -0.17 (-0.76 to 0.43) | ||
| Much | 289 | -0.23 (-0.69 to 0.24) | 265 | -1.56 (-2.92 to -0.20)* | ||
| Very much | 48 | -0.59 (-1.67 to 0.49) | 46 | -1.63 (-4.73 to 1.47) | ||
| M2 b | Women (ref no) | 2616 | 2439 | |||
| Little | 2487 | 0.30 (0.05 to 0.54)* | 2350 | 0.77 (0.11 to 1.43) * | ||
| Much | 309 | 0.42 (-0.01 to 0.94) | 287 | 1.36 (-0.70 to 2.78) | ||
| Very much | 67 | 1.30 (0.24 to 2.37)* | 62 | 3.30 (0.39 to 6.20)* | ||
| Men (ref no) | 2536 | 2357 | ||||
| Little | 2187 | -0.09 (-0.30 to 0.13) | 2050 | -0.41 (-1.02 to 0.20) | ||
| Much | 230 | -0.30 (-0.80 to 0.19) | 211 | -1.77 (-3.23 to -0.32)* | ||
| Very much | 41 | -0.76(-1.90 to 0.35) | 40 | -2.04 (-5.23 to 1.16) | ||
| Does your bedroom window face a nearby street (< 20 m)? Toward street with … | M1 | Women (ref no) | 3722 | 3481 | ||
| …little traffic | 2198 | 0.15 (-0.09 to 0.40) | 2036 | 0.29 (-0.37 to 0.95) | ||
| … moderate traffic | 530 | 0.48 (0.06 to 0.90)* | 492 | 1.34 (0.19 to 2.48)* | ||
| … much traffic | 196 | 0.57 (-0.10 to 1.23) | 176 | 2.30 (0.47 to 4.13)* | ||
| Men (ref no) | 3427 | 3186 | ||||
| …little traffic | 1880 | 0.07 (-15 to 0.29) | 1746 | 0.10 (-0.53 to 0.74) | ||
| …moderate traffic | 426 | -0.01 (-0.40 to 0.37) | 384 | -0.72 (-1.85 to 0.42) | ||
| …much traffic | 134 | -0.56 (-1.21 to 0.10) | 125 | -1.52 (-3.43 to 0.40) | ||
| M2 | Women (ref no) | 3087 | 2907 | |||
| …little traffic | 1801 | 0.08 (-0.17 to 0.34) | 1679 | 0.07 (-0.63 to 0.76) | ||
| … moderate traffic | 435 | 0.37 (-0.08 to 0.81) | 409 | 1.2 (-0.08 to 2.32) | ||
| … much traffic | 152 | 0.45 (-0.27 to 1.17) | 140 | 1.53 (-0.43 to3.49) | ||
| Men (ref no) | 2916 | 2724 | ||||
| …little traffic | 1605 | 0.03 (-0.20 to 0.26) | 1507 | 0.13 (-0.52 to 0.79) | ||
| … moderate traffic | 358 | -0.08 (-0.48 to 0.33) | 320 | -0.79 (-1.98 to 0.41) | ||
| … much traffic | 111 | -0.40 (-1.10 to 0.29) | 104 | -1.62 (-3.62 to 0.38) | ||
| Participant reported at the same time bedroom window towards street and traffic noise hearing | M1 | Women (ref no) | 4523 | 1978 | ||
| Yes | 2116 | 0.37 (0.14 to 0.61)* | 4201 | 0.89 (0.24 to 1.53)* | ||
| Men (ref no) | 4167 | 3866 | ||||
| Yes | 1695 | 0.01 (-0.21 to 0.22) | 1571 | -0.31 (-0.93 to 0.32) | ||
| M2 | Women (ref no) | 3753 | 3517 | |||
| Yes | 1717 | 0.28 (0.03 to 0.53)* | 1613 | 0.64 (-0.03 to 1.33) | ||
| Men (ref no) | 3566 | 3327 | ||||
| Yes | 1422 | 0.05 (-0.28 to 0.18) | 1327 | -0.46 (-1.11 to 0.20) | ||
*p < 0.05. aModel 1 is adjusted for age (continuous), study center, working status and type of accommodation. bModel 2 is adjusted for age (continuous), study center, smoking status, marital status, working status, education, type of accommodation, hours spent at home (continuous), having children, family history of obesity and exercise level