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Table 8 Multi-level regression analyses for change of the age of the annual fastest and the annual ten fastest swimmers (Model 1) with correction for multiple finishes (Model 2)

From: Analysis of sex differences in open-water ultra-distance swimming performances in the FINA World Cup races in 5 km, 10 km and 25 km from 2000 to 2012

Model ß SE ( ß) Stand. ß T p
   Annual fastest swimmers   
5 km women
1 -0.833 0.289 -0.674 -2.884 0.016
2 -0.833 0.289 -0.674 -2.884 0.016
5 km men
1 0.346 0.288 0.356 1.205 0.256
2 0.346 0.288 0.356 1.205 0.256
10 km women
1 -1.036 0.313 -0.741 -3.315 0.009
2 -1.036 0.313 -0.741 -3.315 0.009
10 km men
1 1.227 0.240 0.862 5.113 0.001
2 1.227 0.240 0.862 5.113 0.001
25 km women
1 -0.424 0.312 -0.396 -1.362 0.203
2 -0.424 0.312 -0.396 -1.362 0.203
25 km men
1 0.577 0.268 0.563 2.153 0.057
2 0.577 0.268 0.563 2.153 0.057
Annual ten fastest swimmers
5 km women
1 -0.194 0.102 -0.172 -1.901 0.060
2 -0.194 0.102 -0.172 -1.901 0.060
5 km men
1 0.054 0.098 0.051 0.552 0.582
2 0.054 0.098 0.051 0.552 0.582
10 km women
1 -0.032 0.129 -0.024 -0.247 0.805
2 -0.032 0.129 -0.024 -0.247 0.805
10 km men
1 0.365 0.109 0.306 3.344 0.001
2 0.365 0.109 0.306 3.344 0.001
25 km women
1 0.097 0.106 0.084 0.913 0.363
2 0.097 0.106 0.084 0.913 0.363
25 km men
1 0.122 0.103 0.109 1.188 0.237
2 0.122 0.103 0.109 1.188 0.237