Marina B Brandão, Wendy J Coster, Priscilla R P Figueiredo, Maíra F Amaral, Andrew M Gordon, Marisa C Mancini
Assisting hand use and self-care bimanual performance of children with unilateral spastic cerebral palsy
Developmental medicine and child neurology
study done evaluate reliability education occupational class using health survey death certificate data 1998 national health nutrition examination survey nhanes conducted crosssectional probability sample south korean households contained unique 13digit personal identification numbers linked data mortality korean national statistical office data 263 deaths used estimate agreement rates kappa indices education occupational class using nhanes data death certificate data simple weighted kappa indices education 060 95 ci053068 073 95 ci067079 respectively educational level grouped five categories noformaleducation elementaryschool middleschool highschool college overall agreement rate 719 educational groups magnitude reliability measured overall agreement rates kappa indices tended increase decrease educational class number noneducated people using death certificate data smaller using nhanes data occupational class manual workers nonmanual workers others kappa index 040 95 ci030051 relatively lower educational class compared nhanes number nonmanual workers deceased aged 3064 tended increased 8 12 using death certificate data whereas number manual workers tended decreased 59 41 socioeconomic inequalities mortality rates based previous unlinked studies south korea due numeratordenominator bias mortality rates manual workers noeducation groups might underestimated