TABLE 3.
Distribution of Primary Farm Operators With Farm Work-Related Asthma by Select Characteristics
| Characteristic | %a | 95% CI |
|---|---|---|
| Total | 100.0 | |
| Age group (years) | ||
| 16–39 | 4.4 | (0.7–8.1)b |
| 40–64 | 64.7 | (64.7–77.5) |
| 65–99 | 30.9 | (30.9–43.5) |
| Sex | ||
| Male | 83.9 | (74.9–92.8) |
| Female | 16.1 | (7.2–25.1)b |
| Marital status | ||
| Married or living with a partner | 87.2 | (78.7–95.7) |
| Widowed, divorced, separated | 9.8 | (1.8–17.8)b |
| Single, never married | —c | — |
| Smoking status | ||
| Current smoker | 2.0 | (0.1–3.9)b |
| Former smoker | 20.5 | (10.3–30.6)d |
| Nonsmoker | 77.5 | (67.2–87.8) |
| Second job | ||
| Yes | 51.2 | (37.8–64.6) |
| No | 48.8 | (35.4–62.2) |
| Regionc | ||
| North | 12.0 | (7.1–16.8)f |
| Midwest | 31.7 | (19.2–44.2) |
| South | 36.7 | (22.3–51.1) |
| West | 19.6 | (11.7–27.5) |
| Farm acreage | ||
| <101 | 49.0 | (35.5–62.5)g |
| 101–999 | 35.2 | (22.8–47.6) |
| ≥1,000 | 15.8 | (7.5–24.1) |
| Farm value of sales | ||
| <$10,000 | 47.0 | (33.2–60.7)h |
| $10,000–$99,999 | 22.2 | (13.4–31.0) |
| ≥$100,000 | 30.8 | (19.9–41.7) |
| Farm typei | ||
| Livestock | 52.5 | (39.2–65.9) |
| Crop | 47.5 | (34.1–60.8) |
Note. 95% CI = 95% confidence interval.
Weighted to the national population of primary farm operators using the survey sample weights for each participant.
Estimate may be unreliable because the relative standard error for the estimated number of operators with farm work–related asthma is 30%–50%.
Estimate suppressed because the relative standard error for the estimated number of operators with farm work–related asthma >50%.
Never smoker versus former smoker, P = .007; current versus former/never smokers not assesses because the estimate may be unreliable.
North: Connecticut, Maine, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, and Vermont; Midwest: Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Nebraska, North Dakota, Ohio, South Dakota, and Wisconsin; South: Alabama, Texas, Arkansas, Delaware, District of Columbia, Florida, Georgia, Kentucky, Louisiana, Maryland, Mississippi, North Carolina, Oklahoma, South Carolina, Tennessee, Virginia, and West Virginia; West: Alaska, Arizona, California, Colorado, Hawaii, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington, and Wyoming.
Farms in South versus farms in North, P = .03; farms in West versus farms in North, P = .02.
Farms with <101 acres versus farms with ≥1,000 acres, P < .0001; farms with 101–999 acres versus farms with ≥1,000 acres, P = .01.
Farms with ≥$100,000 value of sales versus farms with <$10,000 value of sales, P < .001; farms with ≥$100,000 value of sales versus farms with $10,000–$99,999 value of sales, P < .0001.
Livestock farm includes swine, dairy, beef cattle, sheep/goats, equine, poultry, aquaculture, other animal; crop farm includes grains, tobacco, cotton, vegetables, fruits/nuts, nursery/greenhouse, cut Christmas trees, other crops/hay.