Demographic characteristics of participants with no follow-up versus participants with at least 1 week of follow-up
| Participants with no weekly survey (n=53) | Participants with at least one weekly survey (n=422) | p Value | |
|---|---|---|---|
| Age (years) | |||
| Mean (SD) | 25.5 (10.6) | 31.5 (13.4) | <0.01 |
| Women (n, %) | 26 (49.1) | 288 (68.3) | <0.01 |
| Body mass index* (n, %) | |||
| 18.5 or less (underweight) | 1 (1.9) | 13 (3.1) | 0.30 |
| 18.5–24.9 (normal) | 24 (45.3) | 157 (37.2) | |
| 25.0–34.9 (overweight) | 22 (41.5) | 185 (43.8) | |
| 35.0–39.9 (obese) | 1 (1.9) | 40 (9.5) | |
| 40+ (extremely obese) | 5 (9.4) | 27 (6.4) | |
| Primary language (n,%) | |||
| English | 43 (81.1) | 377 (89.3) | 0.01 |
| Spanish | 5 (9.4) | 36 (8.5) | |
| Portuguese | 5 (9.4) | 9 (2.1) | |
| Education (n, %) | |||
| Never attended school | 0 (0.0) | 6 (1.42) | <0.01 |
| Grades 1–11 | 29 (54.7) | 126 (29.9) | |
| High school grad/GED | 19 (35.9) | 167 (39.6) | |
| Some college or above | 5 (9.4) | 123 (29.2) | |
| Job tenure (months) | |||
| Mean (SD) | 24.7 (41.5) | 36.8 (48.7) | 0.08 |
| Weekly work hours | |||
| Mean (SD) | 31.8 (10.2) | 34.4 (11.2) | 0.10 |
| Slip-resistant shoes (n, %) | |||
| Yes | 34 (64.2) | 286 (67.8) | 0.60 |
| No | 19 (35.8) | 136 (32.2) | |
| Average perception of slipperiness | |||
| Mean (SD) | 1.88 (0.55) | 1.90 (0.54) | 0.80 |
Note: Limited-service restaurant workers, 2007–2008.
*Source: US Department of Health and Human Services.