New onset asthma and the effect of environment and occupation among farming and non-farming rural subjects

Conclusion Exposure to swine and dairy confinements, welding, smoking, and bronchial hyper-responsiveness are risk factors for developing non-allergic asthma, and being born and raised on a farm reduces the subsequent risk. These findings support the theory that immune and inflammatory responses may be influenced by environmental exposure to early childhood reducing the risk of asthma later in life.