Document Detail

The New Zealand Socio-economic Index of Occupational Status: methodological revision and imputation for missing data.
MedLine Citation:
PMID:  15233348     Owner:  NLM     Status:  MEDLINE    
OBJECTIVES: To revise and update the New Zealand Socio-economic Index (NZSEI) in the light of methodological issues in its construction, and to develop an imputation method for use where occupational information is not available. METHODS: Data were drawn from the following New Zealand national surveys: 1996 Population Census; 1996/97 and 1997/98 Household Economic Surveys; 1996/97 Household Health Survey. Three sets of statistical analyses were applied: alternating least squares to generate socio-economic scores; cluster and discriminant function analyses to identify cut-points; and regression and logistic regression to develop and test imputation methods. RESULTS: Socio-economic scores for the full-time workforce in 1996 showed a different distribution, but much the same occupational ordering, as in 1991. The introduction of part-time workers and income adjustment multipliers for self-employed workers significantly affected scores for management and agricultural titles. The application of cluster and discriminant function analyses generated six groupings that were relatively distinct occupationally. An imputation method based on an averaging of scores within age/qualification categories was found to achieve acceptable results. CONCLUSIONS: Methodological improvements in the construction of the NZSEI have enhanced its empirical robustness, while a simple imputation technique has widened the potential application of the scale.
Peter Davis; Gabrielle Jenkin; Pat Coope; Tony Blakely; Andrew Sporle; Cindy Kiro
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Australian and New Zealand journal of public health     Volume:  28     ISSN:  1326-0200     ISO Abbreviation:  Aust N Z J Public Health     Publication Date:  2004 Apr 
Date Detail:
Created Date:  2004-07-05     Completed Date:  2004-07-22     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9611095     Medline TA:  Aust N Z J Public Health     Country:  Australia    
Other Details:
Languages:  eng     Pagination:  113-9     Citation Subset:  IM    
Department of Public Health and General Practice, Christchurch School of Medicine and Health Sciences, University of Otago, New Zealand.
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MeSH Terms
Data Collection
New Zealand
Social Class*
Comment In:
Aust N Z J Public Health. 2004 Apr;28(2):105-6   [PMID:  15233345 ]

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