| Condition | Father | Mother | ||||
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| Yes | No | Don’t know | Yes | No | Don’t know |
| Hypertension |
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| Tuberculosis |
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| Stroke |
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| Chronic bronchitis(inflammation of bronchi) |
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| Emphysema (enlargement and damage of air sacs) |
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| Asthma |
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| Lung cancer |
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| Other chest conditions |
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