The percentage of probable and possible occupational asthmatics at hospital A was 25 percent, at hospital В it was 12 percent, and at hospital С it was 22 percent. The overall percentage for all three hospitals was 21.3 percent. After adjusting for a differential response from the three hospitals, the overall percentage of probable and possible occupational asthma was 9.9 percent if one assumed none of the noninterviewed patients had probable or possible occupational asthma. If one assumed the noninterviewed patients had the same prevalence of probable or possible occupational asthma as the interviewed patients, the adjusted prevalence of probable and possible occupational asthma was 20.2 percent.
Table 3 lists the industry, occupation, suspected substances that caused the asthma, and years worked before onset of symptoms for the possible occupational asthma patients. Table 4 compares the industries in which the patients, who were classified as not having occupational asthma, worked with those of the patients classified as having possible occupational asthma.
All 202 adult patients with a primary hospital discharge diagnosis of asthma in 1990 were selected from three Michigan hospitals for a possible interview. Ninety-four of these patients were interviewed. Of the 108 nonresponders, 2 had died, 19 refused, and 87 could not be located after a mailing and an attempted phone call. There was no significant difference between the gender of the nonresponder and responder groups (x2 = 0.013, p = 0.971) (Table 2). However, the responders were on the average 7 years older (p = 0.0001). A larger percentage of patients who responded were covered by private insurance (68.8 percent vs 34.3 percent) and a lower percentage were covered by Medicaid (20.8 percent vs 51.4 percent). A larger percentage of patients responded from hospitals A (50.8 percent) and С (69.2 percent) than hospital В (35.2 percent) (x2 = 7.23, p = 0.023).
Three patients (3.2 percent) met the criteria for having probable occupational asthma, and 17 patients (18.1 percent) met the criteria for having possible occupational asthma. There was one patient with probable occupational asthma from each hospital. Short summaries of the patients who were classified as having probable occupational asthma are included below.
All of these hospitals provide care to a significant indigent population. All patients with the primary diagnosis of asthma (ICD-493) between the ages 20 to 65 years discharged from these three hospitals in 1990 were contacted in the summer of 1991. The patients physician was first sent a letter asking if he had any objection to our contacting his patient. None of the physicians objected. Each patient was sent an introductory letter and a consent form. Each patient was interviewed over the phone by the same interviewer. The interviewer administered a standardized medical questionnaire that included questions on symptoms, medication, and a lifetime occupational history. The same question used in the study of Social Security disability recipients regarding whether the patient thought their asthma was work related was included in the questionnaire. This question is: “Was your asthma caused by bad working conditions such as smoke or chemicals?”
Occupational asthma is defined as a variable airway narrowing related to exposure in the working environment to airborne dusts, gases, vapors, or fumes. Occupational asthma affects a diverse group of people ranging from bakers to chemical workers. Research has identified more than 200 causal agents such as organophosphates, formalin, diisocyanates, platinum salts, and wood dusts.
Limited work has been performed on how much adult asthma can be attributed to work. A study from Japan found that in 15 percent of adult asthmatics, their asthma was caused by their occupation. However, the Japanese industries associated with occupational asthma are different from those found in the United States. For example, in Japan, occupational asthma was reported in the sericulture (silk production) industry and the manufacture of Maiko, which is used in the production of some Japanese foods. A survey of patients receiving Social Security disability for asthma in the United States also attributed 15 percent of asthma to work exposures. Patients in this study were considered to have occupational asthma if they felt that the cause of their asthma was related to the workplace. Data were not available to evaluate the patients self-reported assessment of cause. Finally, a national committee of pulmonary experts estimated that 2 percent of asthma in adults was caused by work exposures. A study was not conducted to derive this estimate.
Asthma is the most wide-spread respiratory disease among pregnant women, but this condition (pregnancy) can differently influence woman’s asthmatic condition. It is a common feeling that about one third of all the pregnant women have their asthma condition worsened, one third cases of asthma during pregnancy gets better ant the rest cases show no alternations. Usually, within the first three months after the delivery the state of the woman’s health returns to its pre-gestation condition. The degree of the disease severity in any following case of pregnancy can be similar to the previous one. That’s the main reason why medical specialists observe those women, whose asthma condition has worsened during the last period of gestation. Continue reading
The first days of autumn mean the period, when vulnerable to various irritators asthmatics prefer to buy asthma inhalers beforehand. Inhalers for asthma are considered to be the best remedy for treating because they have numerous benefits for patients. Let’s have a brief look at them. Continue reading
Speaking about the medications for asthma one should understand the difference between them. Every particular remedy for asthma may affect a certain reason of an asthma attack. One type of asthma medications is prescribed for relieving an acute asthma attack (they are also known as rescue remedies) and the others work on the prevention of that attack. Flovent for Asthma is in the number of preventive medicaments belonging to the inhaled corticosteroids. Remedies of this drug class are prescribed as the remedy of the first line in case when a patient needs something more than just a fast-acting medication. Flovent, as well as other corticosteroids for inhalation, can be taken both as an independent remedy and in the complex with other long-acting steroids. Continue reading