Volume 23, Number 11—November 2017
Dispatch
Changing Demographics and Prevalence of Body Lice among Homeless Persons, Marseille, France
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).