@article{fdi:010040829,
  title = {{T}riciasis and geoclimatic factors in {M}ali},
  author = {{S}ch{\'e}mann, {J}ean-{F}ran{\c{c}}ois and {L}affly, {D}. and {S}acko, {D}. and {Z}ephak, {G}. and {M}alvy, {D}.},
  editor = {},
  language = {{ENG}},
  abstract = {{S}everal trachoma surveys conducted in sub-{S}aharan countries showed different geographical distributions of active trachoma and trichiasis. {T}richiasis is more common in southern regions. {W}e analysed the role of geoclimatic factors in determining the distributions of active trachoma and trichiasis in {M}ali. {I}n each region a random sample of 30 clusters was examined. {T}he prevalence of active trachoma among children and of trichiasis among women was compared, and geographical, environmental and social risk factors were assessed. {L}ogistic regression models were constructed. {M}ultiple regression analysis was applied and models were used to map the probability of active trachoma and trichiasis. {T}he highest prevalence rates of active trachoma ({TF}/{TI}) were found in the northern part of {M}ali reaching 41.1% among children living north of the 15th parallel. {S}urprisingly, prevalence rates of trichiasis ({TT}) among women regularly increased from north to south (1.0% north of the 15th parallel vs. 2.8% south; {OR}=2.91, 95% {CI} 2.01-4.24). {T}he two related predictive maps showed a gradient {SSE}/{NNW} for {TF}/{TI} very different from the gradient {NS}/{SW} for {TT} {T}hese opposite spatial distributions could be explained by differences in the pathogenic agent, the natural history of the disease, population susceptibility, grading process or vulnerable group behaviour.},
  keywords = {trachoma ; trichiasis ; environment ; risk factors ; climate ; {M}ali},
  booktitle = {},
  journal = {{T}ransactions of the {R}oyal {S}ociety of {T}ropical {M}edicine and {H}ygiene},
  volume = {101},
  numero = {10},
  pages = {996--1003},
  ISSN = {0035-9203},
  year = {2007},
  DOI = {10.1016/j.trstmh.2007.05.015},
  URL = {https://www.documentation.ird.fr/hor/fdi:010040829},
}