Table 1. Continuing Promise 2011 Population and Sample Demographics.
| Characteristic | Ship Population | Self-reported TD Cases | Clinic-based TD Case Series |
|---|---|---|---|
| (N = ~900, weekly avg) | (N = 3,156; avg 150 surveys/week) | (N = 193) | |
| Age, median (IQR) | N/D | 31 (24–36)] | 32 (25–36) |
| Gender, n (%) | |||
| Male | 636 (70.7) | 2,038 (64.6%) | 129 (66.8%) |
| Female | 264 (29.3%) | 1,030 (32.6%) | 63 (32.6%) |
| Missing | N/A | 88 (2.8%) | 1 (0.5%) |
| Branch of Service, n (%) | |||
| Navy | 689 (76.6%) | 2,502 (79.3%) | N/A |
| Air Force | 42 (4.7%) | 194 (6.1%) | N/A |
| Army | 11 (1.2%) | 70 (2.2%) | N/A |
| NGO | 54 (6.0%) | 214 (6.8%) | N/A |
| Other | 104 (11.6%) | 124 (3.9%) | N/A |
| Missing | N/A | 52 (1.6%) | N/A |
| Crew Type, n (%) | |||
| Enlisted | 569 (63.3%) | 1,946 (61.7%) | 93 (48.2%) |
| Officer | 203 (22.5%) | 671 (21.3%) | 46 (23.8%) |
| Civilian (NGO/CIVMAR) | 127 (14.1%) | 269 (8.5%) | 34 (17.6%) |
| Missing, n (%) | N/A | 270 (8.6%) | 20 (10.4%) |
IQR—interquartile range; N/D—not described; N/A—not available; NGO—non-governmental organization; CIVMAR—civil marine service; TD—travelers’ diarrhea