Table 1.
Demographic characteristics of the study sample.
| Characteristics | N | % | Prevalence N (%) |
|---|---|---|---|
| Gender | |||
| Males | 32 | 30.2 | 14 (43.75) |
| Females | 74 | 69.8 | 54 (72.97) |
| Age group | |||
| 18 to 38 yr | 27 | 25.5 | 14 (51.85) |
| 39 to 58 yr | 58 | 54.7 | 40 (68.96) |
| >59 yr | 21 | 19.8 | 14 (66.66) |
| Years in cleaning occupation | |||
| 0 to 10 yr | 44 | 41.5 | 22 (50) |
| 11 to 20 yr | 37 | 34.9 | 25 (67.56) |
| 21 to 30 yr | 19 | 17.9 | 15 (78.94) |
| >31 yr | 6 | 5.7 | 6 (100) |
| Race | |||
| Asians | 27 | 25.5 | 15 (55.55) |
| Blacks | 30 | 28.3 | 21 (70) |
| Caucasians | 11 | 10.4 | 7 (63.63) |
| Hispanics | 38 | 35.8 | 25 (65.78) |
| Body Mass Index | |||
| <18.5 | 2 | 1.9 | 2 (100) |
| 18.5 to 24.9 | 32 | 30.2 | 19 (59.37) |
| 25 to 29.9 | 30 | 28.3 | 19 (63.33) |
| >30 | 42 | 39.6 | 28 (66.66) |
| Shift | |||
| 1st shift | 54 | 50.9 | 40 (74.07) |
| 2nd shift | 37 | 34.9 | 21 (56.75) |
| 3rd shift | 15 | 14.2 | 7 (46.66) |