@article{
 title = {Male/female ratio in centenarians: a possible role played by population genetic structure},
 type = {article},
 year = {2002},
 identifiers = {[object Object]},
 keywords = {Aged,Aged, 80 and over,Humans,Italy/epidemiology,Longevity/*genetics,Population Dynamics,Population Surveillance,Research Support, Non-U.S. Gov't,Sex Ratio},
 pages = {1283-1289},
 volume = {37},
 websites = {http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=12470842},
 id = {106e2a28-3833-3ab9-804f-f4662bbc4715},
 created = {2017-06-19T13:44:44.549Z},
 file_attached = {true},
 profile_id = {de68dde1-2ff3-3a4e-a214-ef424d0c7646},
 group_id = {b2078731-0913-33b9-8902-a53629a24e83},
 last_modified = {2017-06-19T13:44:44.666Z},
 read = {false},
 starred = {false},
 authored = {false},
 confirmed = {true},
 hidden = {false},
 source_type = {Journal Article},
 notes = {<m:note>0531-5565<m:linebreak/>Journal Article</m:note>},
 abstract = {All the demographic surveys on the centenarians have highlighted that females outnumber males. The centenarians' male/female (M/F) ratio reported by most studies ranges between 1:4 and 1:7. A puzzling 1:2 ratio was observed in Calabria, a Southern Italian region. To our knowledge only in Sardinia a similar phenomenon had been previously observed. We have therefore used the data of the Italian Institute of Statistics to figure out the centenarians' M/F ratio in the Italian regions. We found that this ratio gradually decreases from South to North. Such a result is certainly due to many factors. Thus, we have explored the possibility, it is also influenced by the genetic structure of the Italian population. In fact, the distribution of the centenarians' M/F ratio turned out to be significantly correlated with the genetic structure of the Italian population as outlined by the principal component analysis.},
 bibtype = {article},
 author = {Passarino, G and Calignano, C and Vallone, A and Franceschi, C and Jeune, B and Robine, J M and Yashin, A I and Cavalli Sforza, L L and De Benedictis, G},
 journal = {Exp Gerontol},
 number = {10-11}
}

{"_id":"t6ukg8tYKCTQMRnsm","bibbaseid":"passarino-calignano-vallone-franceschi-jeune-robine-yashin-cavallisforza-etal-malefemaleratioincentenariansapossibleroleplayedbypopulationgeneticstructure-2002","downloads":0,"creationDate":"2017-06-19T14:46:34.642Z","title":"Male/female ratio in centenarians: a possible role played by population genetic structure","author_short":["Passarino, G.","Calignano, C.","Vallone, A.","Franceschi, C.","Jeune, B.","Robine, J., M.","Yashin, A., I.","Cavalli Sforza, L., L.","De Benedictis, G."],"year":2002,"bibtype":"article","biburl":null,"bibdata":{"title":"Male/female ratio in centenarians: a possible role played by population genetic structure","type":"article","year":"2002","identifiers":"[object Object]","keywords":"Aged,Aged, 80 and over,Humans,Italy/epidemiology,Longevity/*genetics,Population Dynamics,Population Surveillance,Research Support, Non-U.S. Gov't,Sex Ratio","pages":"1283-1289","volume":"37","websites":"http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=12470842","id":"106e2a28-3833-3ab9-804f-f4662bbc4715","created":"2017-06-19T13:44:44.549Z","file_attached":"true","profile_id":"de68dde1-2ff3-3a4e-a214-ef424d0c7646","group_id":"b2078731-0913-33b9-8902-a53629a24e83","last_modified":"2017-06-19T13:44:44.666Z","read":false,"starred":false,"authored":false,"confirmed":"true","hidden":false,"source_type":"Journal Article","notes":"<m:note>0531-5565<m:linebreak/>Journal Article</m:note>","abstract":"All the demographic surveys on the centenarians have highlighted that females outnumber males. The centenarians' male/female (M/F) ratio reported by most studies ranges between 1:4 and 1:7. A puzzling 1:2 ratio was observed in Calabria, a Southern Italian region. To our knowledge only in Sardinia a similar phenomenon had been previously observed. We have therefore used the data of the Italian Institute of Statistics to figure out the centenarians' M/F ratio in the Italian regions. We found that this ratio gradually decreases from South to North. Such a result is certainly due to many factors. Thus, we have explored the possibility, it is also influenced by the genetic structure of the Italian population. In fact, the distribution of the centenarians' M/F ratio turned out to be significantly correlated with the genetic structure of the Italian population as outlined by the principal component analysis.","bibtype":"article","author":"Passarino, G and Calignano, C and Vallone, A and Franceschi, C and Jeune, B and Robine, J M and Yashin, A I and Cavalli Sforza, L L and De Benedictis, G","journal":"Exp Gerontol","number":"10-11","bibtex":"@article{\n title = {Male/female ratio in centenarians: a possible role played by population genetic structure},\n type = {article},\n year = {2002},\n identifiers = {[object Object]},\n keywords = {Aged,Aged, 80 and over,Humans,Italy/epidemiology,Longevity/*genetics,Population Dynamics,Population Surveillance,Research Support, Non-U.S. Gov't,Sex Ratio},\n pages = {1283-1289},\n volume = {37},\n websites = {http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=12470842},\n id = {106e2a28-3833-3ab9-804f-f4662bbc4715},\n created = {2017-06-19T13:44:44.549Z},\n file_attached = {true},\n profile_id = {de68dde1-2ff3-3a4e-a214-ef424d0c7646},\n group_id = {b2078731-0913-33b9-8902-a53629a24e83},\n last_modified = {2017-06-19T13:44:44.666Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n source_type = {Journal Article},\n notes = {<m:note>0531-5565<m:linebreak/>Journal Article</m:note>},\n abstract = {All the demographic surveys on the centenarians have highlighted that females outnumber males. The centenarians' male/female (M/F) ratio reported by most studies ranges between 1:4 and 1:7. A puzzling 1:2 ratio was observed in Calabria, a Southern Italian region. To our knowledge only in Sardinia a similar phenomenon had been previously observed. We have therefore used the data of the Italian Institute of Statistics to figure out the centenarians' M/F ratio in the Italian regions. We found that this ratio gradually decreases from South to North. Such a result is certainly due to many factors. Thus, we have explored the possibility, it is also influenced by the genetic structure of the Italian population. In fact, the distribution of the centenarians' M/F ratio turned out to be significantly correlated with the genetic structure of the Italian population as outlined by the principal component analysis.},\n bibtype = {article},\n author = {Passarino, G and Calignano, C and Vallone, A and Franceschi, C and Jeune, B and Robine, J M and Yashin, A I and Cavalli Sforza, L L and De Benedictis, G},\n journal = {Exp Gerontol},\n number = {10-11}\n}","author_short":["Passarino, G.","Calignano, C.","Vallone, A.","Franceschi, C.","Jeune, B.","Robine, J., M.","Yashin, A., I.","Cavalli Sforza, L., L.","De Benedictis, G."],"urls":{"Paper":"http://bibbase.org/service/mendeley/de68dde1-2ff3-3a4e-a214-ef424d0c7646/file/75819a94-2e99-dfdd-671b-df20a367ee1e/2002-Malefemale_ratio_in_centenarians_a_possible_role_played_by_population_genetic_structure.pdf.pdf","Website":"http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=12470842"},"bibbaseid":"passarino-calignano-vallone-franceschi-jeune-robine-yashin-cavallisforza-etal-malefemaleratioincentenariansapossibleroleplayedbypopulationgeneticstructure-2002","role":"author","keyword":["Aged","Aged","80 and over","Humans","Italy/epidemiology","Longevity/*genetics","Population Dynamics","Population Surveillance","Research Support","Non-U.S. Gov't","Sex Ratio"],"downloads":0},"search_terms":["male","female","ratio","centenarians","possible","role","played","population","genetic","structure","passarino","calignano","vallone","franceschi","jeune","robine","yashin","cavalli sforza","de benedictis"],"keywords":["aged","aged","80 and over","humans","italy/epidemiology","longevity/*genetics","population dynamics","population surveillance","research support","non-u.s. gov't","sex ratio"],"authorIDs":[]}