Monthly trends on smoking in Wales from the Smoking Toolkit Study.
Robert West, Loren Kock, Dimitra Kale, Jamie Brown
Last updated: 21st July 2022
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ABC1: Professional to clerical occupation; C2DE: Manual occupation
ABC1: Professional to clerical occupation; C2DE: Manual occupation
ABC1: Professional to clerical occupation; C2DE: Manual occupation
Methods
Data collected during monthly household survey
Each month involves a new representative sample of 250-300 adults (18 and over)
- Due to the pandemic, from October 2020, surveys were conducted by telephone and among adults aged 18 and over until face-to-face collection is possible
- From April 2020 (switch to telephone), Ipsos started recording ~<5% cases as missing for social grade. To derive weight variable (which uses social grade), Ipsos assumed missing = social grade C1. To ensure analyses using weight and social grade reflect target weighed profile, social grade was recoded to reflect this assumption. Different assumptions for missing social grade cases were explored in a parallel telephone and face-to-face (with no missing social grade) wave, and this assumption found least distorting.
Kock et al., (2021). Protocol for expansion of an existing national monthly survey of smoking behaviour and alcohol use in England to Scotland and Wales: The Smoking and Alcohol Toolkit Study. Wellcome Open Research, 6(67), 67.
