34
In this report , several health behaviors were investigated in relation to maintaining mobility during 4 years of follow - up among 6 , 981 men and women aged 65 years and older with intact mobility at baseline between 1981 and 1983 who lived in one of three communities : East Boston , Massachusetts ; Iowa and Washington counties , Iowa ; and New Haven , Connecticut .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 None