Abstract:
:In a longitudinal study of workers in seven Norwegian aluminium plants, the time to development of asthmatic symptoms could only be determined to lie in the interval between two consecutive health examinations. In a previous paper we analysed the data by survival techniques for interval censored data. In the present paper the data are reanalysed in two ways and compared to the previous analyses. First, it is assumed that occurrence of symptoms coincided with reporting, in which case the data can be analysed as right censored. Secondly, the follow-up times are completely disregarded and the effects of covariates are analysed on the binary outcomes of symptoms. Comparing the estimated effects of the covariates between the three approaches, only minor differences were found. However, the estimates on incidence were strongly influenced by whether the data were analysed as right or interval censored.
journal_name
Stat Medjournal_title
Statistics in medicineauthors
Samuelsen SO,Kongerud Jdoi
10.1002/sim.4780131708subject
Has Abstractpub_date
1994-09-15 00:00:00pages
1771-80issue
17eissn
0277-6715issn
1097-0258journal_volume
13pub_type
杂志文章abstract::In record linkage studies, unique identifiers are often not available, and therefore, the linkage procedure depends on combinations of partially identifying variables with low discriminating power. As a consequence, wrongly linked covariate and outcome pairs will be created and bias further analysis of the linked data...
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pub_type: 临床试验,杂志文章,随机对照试验
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