Volume 23, Number 11—November 2017
Dispatch
Changing Demographics and Prevalence of Body Lice among Homeless Persons, Marseille, France
Tran Duc Anh Ly, Youssoupha Touré, Clément Calloix, Sékéné Badiaga, Didier Raoult, Hervé Tissot-Dupont, Philippe Brouqui, and Philippe Gautret
Table 1
Demographics and results of univariate and multivariate analysis of risk factors for body lice infestation among homeless persons, Marseille, France, 2000–2017*
| Demographics | Total | Body lice prevalence | Odds ratio (95% CI), p value |
|
|---|---|---|---|---|
| Univariate analysis | Multivariate analysis | |||
| Shelter used | ||||
| A† | 1,305 (57.0) | 90 (10.5) | 1.33 (1.01–1.76), 0.041 | 3.45 (1.37–8.66), 0.008 |
| B |
983 (43.0) |
152 (13.5) |
||
| Sex | ||||
| M | 2,161 (95.4) | 236 (12.6) | ||
| F |
105 (4.6) |
5 (5.7) |
||
| Age, y | ||||
| Mean (SD) | 43.1 (15.0) | NA | ||
| Range | 18–86 | NA | ||
| <25 | 221 (10.0) | 4 (2.1) | ||
| 25–50 | 1,291 (58.5) | 105 (9.5) | ||
| >50 |
694 (31.5) |
121 (19.8) |
2.70 (2.04–3.57), <0.0001 |
2.47 (1.14–5.34), 0.022 |
| Birthplace | ||||
| France mainland | 597 (26.4) | 95 (19.2) | 2.18 (1.64–2.89), <0.0001 | |
| France overseas territories | 23 (1.0) | 6 (30.0) | ||
| North Africa | 1,109 (49.0) | 95 (9.6) | 0.62 (0.47–0.81), <0.0001 | |
| Sub-Saharan Africa | 123 (5.4) | 14 (13.0) | ||
| Eastern Europe | 270 (11.9) | 16 (7.0) | ||
| Western Europe | 77 (3.4) | 10 (14.3) | ||
| Asia | 51 (2.3) | 3 (6.7) | ||
| Other |
11 (0.5) |
0 |
||
| Duration of residence in France, y | ||||
| Mean (SD) | 12.2 (16.8) | NA | ||
| Range | 0–75 | NA | ||
| <1 | 390 (38.8) | 8 (2.3) | ||
| 1–5 | 176 (17.5) | 4 (2.6) | ||
| >5‡ |
438 (43.6) |
41 (11.6) |
5.46 (2.83–10.55), <0.0001 |
4.28 (1.79–10.23), 0.001 |
| Visited country of origin since immigration | 334 (33.2) | 20 (7.4) | ||
| Total no. visits to country of origin since immigration |
672 (66.8) |
27 (4.8) |
||
| Duration of homelessness, y | ||||
| Mean | 3.8 | NA | ||
| Range | 0–57 | NA | ||
| <1 | 1,218 (55.9) | 66 (6.3) | ||
| 1–5 | 443 (20.3) | 52 (13.4) | ||
| >5 | 518 (23.8) | 112 (24.7) | 3.67 (2.77–4.88), <0.0001 | |
*Values are no. (%) persons except as indicated. Blank cells indicate statistically insignificant results; variables with a prevalence <5.0% were not included in the univariate model. NA, not applicable.
†Includes high-risk homeless special unit (33 of the 300 beds in the shelter).
‡North African migrants only: body lice prevalence was 1.6% in persons living in France for <5 y vs. 9.3% in those living in France for >5 y (OR 6.39, 95% CI 2.41–16.95; p<0.0001).
Page created: October 17, 2017
Page updated: October 17, 2017
Page reviewed: October 17, 2017
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