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Researchers from the University Medical Center Groningen validated and created sum scores for questionnaire data on past-year stress exposure. More specifically the Long-term Difficulties Inventory (LDI) and List of Threatening Experiences (LTE) for adult participants at 1A, 1B, 1C, 2A, and 3A. (sections: mental health (LDI, LTE) and secondary & linked variables).
The stress sum scores can be requested in the Lifelines catalogue or by mail (data@lifelines.nl).