TABLE 1.
Description of Study Cohort at Spirometry Testing
| Characteristic | Total (N = 450) | Worked in agriculture in past year (n = 340) | Didn’t work in agriculture in past yeara (n = 110) |
|---|---|---|---|
| Age, % (n) | |||
| 30 years old or younger | 18 (82) | 18 (62) | 18 (20) |
| 31–40 years old | 32 (145) | 33 (112) | 30 (33) |
| 41–50 years old | 33 (147) | 33 (112) | 32 (35) |
| 51 years old or older | 17 (76) | 16 (54) | 20 (22) |
| Male, % (n) | 43 (192) | 53 (179) | 12 (13)*** |
| Married/living with partner, % (n) | 95 (427) | 94 (321) | 96 (106) |
| Country of birth, % (n)b | |||
| United States | 3 (13) | 2 (6) | 6 (7)** |
| Mexico | 67 (290) | 64 (208) | 75 (82) |
| El Salvador | 28 (121) | 31 (101) | 18 (20) |
| Other Central American | 3 (11) | 3 (10) | 1 (1) |
| Years lived in the United States, mean ± SDb | 15.3 ± 9.4 | 15.1 ± 9.2 | 15.6 ± 10.1 |
| Highest grade completed in school, % (n) | |||
| No school | 6 (25) | 7 (24) | 1 (1)* |
| Primary or less | 58 (262) | 57 (192) | 64 (70) |
| Greater than primary | 36 (162) | 36 (123) | 35 (39) |
| Household income <$30,000, % (n) | 74 (311) | 73 (233) | 78 (78) |
| Current smoking, % (n) | 6 (25) | 6 (19) | 5 (6) |
| Smoking pack years, mean ± SD | 7.4 ± 8.6 | 6.5 ± 7.6 | 12.3 ± 12.4 |
a
Includes those who worked in other occupations or didn’t work in the past year.
b
Data assessed at the baseline interview, conducted between January 2006 and May 2007.
*
P < .05 for the comparison between those who worked and didn’t work in agriculture in the past year.
**
P < .01 for the comparison between those who worked and didn’t work in agriculture in the past year.
***
P < .001 for the comparison between those who worked and didn’t work in agriculture in the past year.