Table 6

Association between exposure to ETS and self reported health conditions among women (n=26 197), by source. Never smokers of any tobacco product. Northern California Kaiser Permanente, 1979–85

NumberETS exposure at home (hours/week)
01–910–39⩾40Odds ratio (95% CI)
Any v no exposureHeavy6-151 v no exposure
Heart disease294510.512.713.814.36-165 1.20 (1.09, 1.30)1.25 (1.05, 1.47)
Stroke950.30.40.40.51.23 (0.75, 1.96)1.40 (0.53, 3.04)
Intermittent claudication13464.85.95.97.16-165 1.18 (1.03, 1.34)1.37 (1.08, 1.72)
Cancer or tumour12204.64.94.25.40.94 (0.82, 1.08)1.02 (0.78, 1.32)
Chronic cough8082.93.24.23.01.14 (0.97, 1.34)0.93 (0.65, 1.28)
Emphysema330.10.20.20.21.16 (0.48, 2.54) 6-152
Hay fever/asthma470217.718.617.120.96-150 1.04 (0.97, 1.12)1.17 (1.02, 1.35)
Hearing loss7052.53.33.42.51.18 (0.99, 1.41)0.85 (0.57, 1.23)
Severe headache489717.420.721.128.11.26 (1.17, 1.35)1.64 (1.44, 1.87)
Migraine2460.91.10.91.41.17 (0.88, 1.55)1.44 (0.86, 2.27)
Cold/flu >10 days/y350312.315.415.720.41.38 (1.28, 1.50)1.75 (1.52, 2.01)
ETS exposure in small spaces (hours/week)
0 1–9 10–39 ⩾40
Heart disease11.010.712.112.96-165 1.12 (1.03, 1.22)1.20 (1.04, 1.38)
Stroke0.40.30.20.30.64 (0.36, 1.08)0.58 (0.21, 1.65)
Intermittent claudication5.44.64.35.80.95 (0.84, 1.08)1.14 (0.93, 1.40)
Cancer or tumour4.55.05.34.20.99 (0.87, 1.13)0.86 (0.67, 1.09)
Chronic cough2.83.24.13.46-150 1.17 (1.01, 1.37)1.17 (0.89, 1.51)
Emphysema0.10.10.20.26-150 1.33 (0.59, 2.93)2.72 (0.83, 7.71)
Hay fever/asthma16.819.419.819.86-165 1.11 (1.04, 1.19)1.17 (1.04, 1.31)
Hearing loss2.43.03.52.96-160 1.31 (1.10, 1.55)1.23 (0.91, 1.63)
Severe headache17.918.020.223.46-165 1.18 (1.10, 1.26)1.38 (1.24, 1.55)
Migraine0.91.01.10.91.05 (0.80, 1.36)1.00 (0.61, 1.57)
Cold/flu >10 days/y11.415.317.017.46-165 1.43 (1.33, 1.55)1.55 (1.37, 1.75)
ETS exposure in large indoor areas (hours/week)
0 1–9 10–39 ⩾40
Heart disease11.99.711.715.26-165 1.02 (0.93, 1.11)1.27 (1.03, 1.57)
Stroke0.40.30.30.20.68 (0.43, 1.11)0.34 (0.02, 1.62)
Intermittent claudication5.54.15.68.16-160 1.03 (0.91, 1.17)1.55 (1.15, 2.04)
Cancer or tumour4.54.94.75.60.97 (0.85, 1.10)1.08 (0.76, 1.50)
Chronic cough2.93.13.65.16-165 1.12 (0.96, 1.30)1.68 (1.17, 2.34)
Emphysema0.10.10.20.46-150 1.52 (0.71, 3.21)4.19 (0.91, 13.9)
Hay fever/asthma16.219.820.721.76-165 1.14 (1.07, 1.23)1.25 (1.04, 1.49)
Hearing loss2.62.73.03.01.10 (0.93, 1.30)0.97 (0.60, 1.51)
Severe headache19.217.119.924.26-165 1.06 (0.98, 1.13)1.27 (1.07, 1.51)
Migraine0.81.11.01.51.37 (1.05, 1.80)1.69 (0.88, 2.99)
Cold/flu >10 days/y11.214.819.919.16-165 1.44 (1.34, 1.56)1.75 (1.45, 2.10)
Total ETS exposure (hours/week)
0 1–9 10–39 ⩾40
Heart disease11.29.612.013.16-165 1.10 (1.01, 1.20)1.22 (1.08, 1.37)
Stroke0.40.40.40.20.89 (0.57, 1.38)0.52 (0.21, 1.12)
Intermittent claudication5.44.35.16.06-165 1.03 (0.91, 1.17)1.19 (1.01, 1.41)
Cancer or tumour4.34.94.84.70.95 (0.84, 1.08)0.90 (0.75, 1.08)
Chronic cough2.72.83.83.36-160 1.12 (0.96, 1.32)1.14 (0.92, 1.42)
Emphysema0.10.10.10.21.21 (0.57, 2.63)1.97 (0.73, 5.04)
Hay fever/asthma15.719.118.819.96-165 1.14 (1.06, 1.23)1.21 (1.09, 1.33)
Hearing loss2.32.73.03.16-160 1.27 (1.07, 1.51)1.29 (1.02, 1.64)
Severe headache17.816.619.323.26-165 1.17 (1.08, 1.26)1.39 (1.27, 1.53)
Migraine0.81.01.01.11.18 (0.88, 1.58)1.23 (0.84, 1.79)
Cold/flu >10 days/y9.913.315.618.16-165 1.57 (1.44, 1.71)1.91 (1.72, 2.13)
  • Table entries are age adjusted rates per 100 persons by level of ETS exposure.

  • 6-150 p linear trend <0.05;

  • 6-160 p linear trend <0.01;

  • 6-165 p linear trend <0.001.

  • 6-151 ⩾40 hours/week. Odds ratios are adjusted for age, race/ethnicity, education level, marital status, alcohol consumption, physical activity at work, serum total cholesterol, body mass index, hypertension, diabetes and individual occupational hazards. SD for home exposure = 19.9 hours/week; SD for small spaces exposure = 15.5 hours/week; SD for large indoor areas exposure = 13.4 hours/week; SD for total exposure: 24.7 hours/week.

  • 6-152 Not estimable.