squash_sum_scores
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squash_sum_scores [2021/06/04 12:36] laura [Table] |
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| * [[https://doi.org/10.33612/diss.112903501|Byambasukh, O. (2020). Physical activity and cardiometabolic health: Focus on domain-specific associations of physical activity over the life course. University of Groningen. https://doi.org/10.33612/diss.112903501]].\\ | * [[https://doi.org/10.33612/diss.112903501|Byambasukh, O. (2020). Physical activity and cardiometabolic health: Focus on domain-specific associations of physical activity over the life course. University of Groningen. https://doi.org/10.33612/diss.112903501]].\\ | ||
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| - | ===== Data processing ===== | + | ===== Data processing (part 1) ===== |
| - | The calculation of the SQUASH sum scores consisted of three consecutive steps: (1) calculation, (2) conversion, and (3) categorization. Below the steps are briefly described; for a more detailed description we refer to [[https://doi.org/10.33612/diss.112903501|Byambasukh, O. (2020)]]. | + | The calculation of the SQUASH sum scores according to [[https://meetinstrumentenzorg.nl/wp-content/uploads/instrumenten/503_2_N.pdf|Wendel-Vos et al. (2004)]] consisted of three consecutive steps: (1) calculation, (2) conversion, and (3) categorization. Below the steps are briefly described; for a more detailed description we refer to [[https://doi.org/10.33612/diss.112903501|Byambasukh, O. (2020)]]. The results of this syntax have been released as SQUASH sum scores previously (version 1). |
| * **Step 1 - Calculation:** In this step the minutes per week of each activity have been calculated using the questionnaire data. | * **Step 1 - Calculation:** In this step the minutes per week of each activity have been calculated using the questionnaire data. | ||
| * **Step 2 - Conversion:** In this step an intensity factor based on the levels of effort has been assigned for each activity. | * **Step 2 - Conversion:** In this step an intensity factor based on the levels of effort has been assigned for each activity. | ||
| - | * **Step 3 - Categorization:** In this step the intensity categories are determined using the intensity factors from step 2. | + | * **Step 3 - Categorization:** In this step the intensity categories are determined using the intensity factors from step 2. \\ |
| - | + | ||
| - | Since not all summary statistics seemed plausible or logical, the data processing was reconsidered focussing on the following aspects: the value of light PA, the different versions of the Ainsworth’s compendium of PA and use of new MET values, and the | + | |
| - | age-correction that is advised in the SQUASH manual. This resulted in an adjusted (v2) version of the SQUASH sum scores.\\ | + | |
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| - | ===== Remarks from UMCG researcher ===== | + | |
| + | ===== Data processing (part 2 + 3)===== | ||
| + | After the first SQUASH sum scores were finalized, the following observations made the UMCG researchers who developed the SQUASH sum scores reconsider their results: | ||
| - Total physical activity in minutes/week should not be used as a measure of physical activity because this measure includes **light physical activity**, and light physical activity entails a high risk of obtaining imprecise estimates of total minutes of light PA and because of potential bias relating to occupational status. | - Total physical activity in minutes/week should not be used as a measure of physical activity because this measure includes **light physical activity**, and light physical activity entails a high risk of obtaining imprecise estimates of total minutes of light PA and because of potential bias relating to occupational status. | ||
| - **Moderate to vigorous physical activity (MVPA)** measured in minutes/week is the best variable to rank individuals by level of physical activity. | - **Moderate to vigorous physical activity (MVPA)** measured in minutes/week is the best variable to rank individuals by level of physical activity. | ||
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| - An alternative outcome for physical activity that is often used is ‘MET-minutes’. However, if updated MET values derived from the 2011 version of the Ainsworth’s compendium are used, MET values for cycling conducted as a commuting or leisure-time activity should be set at 5.0 to avoid overestimating vigorous PA. Moreover, it is best to use ‘MET-minutes in MVPA’, thus MET-minutes for the moderate to vigorous levels (selecting MET ≥ 4) because of the high risk of obtaining imprecise estimates for light PA minutes. | - An alternative outcome for physical activity that is often used is ‘MET-minutes’. However, if updated MET values derived from the 2011 version of the Ainsworth’s compendium are used, MET values for cycling conducted as a commuting or leisure-time activity should be set at 5.0 to avoid overestimating vigorous PA. Moreover, it is best to use ‘MET-minutes in MVPA’, thus MET-minutes for the moderate to vigorous levels (selecting MET ≥ 4) because of the high risk of obtaining imprecise estimates for light PA minutes. | ||
| - Compared with occupational PA, leisure time and commuting PA demonstrate a much clearer association with health outcomes. Therefore, we recommend to make a substantiated decision to include or exclude occupational PA in the PA measure you want to use, since PA in the various domains seem to represent different kinds of activity with differential health effects.\\ | - Compared with occupational PA, leisure time and commuting PA demonstrate a much clearer association with health outcomes. Therefore, we recommend to make a substantiated decision to include or exclude occupational PA in the PA measure you want to use, since PA in the various domains seem to represent different kinds of activity with differential health effects.\\ | ||
| + | \\ | ||
| + | In the end, it was decided to make the following adjustments to the syntax of Wendel-Vos et al. (2004): | ||
| + | * Change the MET value for cycling to 5.0 | ||
| + | * Exclusion of age correction | ||
| + | Additionally, it was decided to release the composed variables only. And have the variables necessary to get to the result available on request only. As these variables require some understanding of the SQUASH (e.g. consideration of plausibility/correctness of the light physical activity category).\\ | ||
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| - | === Variables === | + | ====== Variables ====== |
| - | | **Questions English** | **Questions Dutch** | **Code** | **Variable** | **Assessment** | **Age** | | + | | **Label English** | **Label Dutch** | **Code** | **Variable** | **Assessment** | **Age** | |
| - | | moderate-to-vigorous physical activity, total minutes per week (new version 2) | matig tot zwaar inspannend fysieke activiteit, totaal minuten per week (nieuw versie 2) | MVPA_mwk | squashsum_minperweek_adu_c_1 | [[1A]] | 18+ | | + | | moderate intensity, activity score (version 2) | matig intensief, activiteitenscore (versie 2) | m_scor_v2 | squashsum_activityscore_adu_c_2_b | [[1A Questionnaire 2|1A2]] | 18+ | |
| - | | moderate-to-vigorous physical activity,activity score (new version 2) | matig tot zwaar inspannend fysieke activiteit, activiteitenscore (nieuw versie 2) | MVPA_scor | squashsum_activityscore_adu_c_1 | [[1A]] | 18+ | | + | | vigorous intensity, activity score (version 2) | zwaar intensief, activiteitenscore (versie 2) | z_scor_v2 | squashsum_activityscore_adu_c_2_c | [[1A Questionnaire 2|1A2]] | 18+ | |
| - | | moderate intensity, minutes per week (version 2) | matig intensief, minuten per week (versie 2) | m_mwk_v2 | squashsum_minperweek_adu_c_1_b | [[1A]] | 18+ | | + | | moderate intensity, minutes per week (version 2) | matig intensief, minuten per week (versie 2) | m_mwk_v2 | squashsum_minperweek_adu_c_2_b | [[1A Questionnaire 2|1A2]] | 18+ | |
| - | | moderate intensity, activity score (version 2) | matig intensief, activiteitenscore (versie 2) | m_scor_v2 | squashsum_activityscore_adu_c_1_b | | | | + | | vigorous intensity, minutes per week (version 2) | zwaar intensief, minuten per week (versie 2) | z_mwk_v2 | squashsum_minperweek_adu_c_2_c | [[1A Questionnaire 2|1A2]] | 18+ | |
| - | | vigorous intensity, minutes per week (version 2) | zwaar intensief, minuten per week (versie 2) | z_mwk_v2 | squashsum_minperweek_adu_c_1_c | | | | + | | complete questionnaire missing | hele vragenlijst niet ingevuld | totmis | squashsum_missing_adu_c_1 | [[1A Questionnaire 2|1A2]] | 18+ | |
| - | | vigorous intensity, activity score (version 2) | zwaar intensief, activiteitenscore (versie 2) | z_scor_v2 | squashsum_activityscore_adu_c_1_c | | | | + | | commuting: missing (version 2) | woonwerk: niet ingevuld (versie 2) | wwmis_v2 | squashsum_missing_adu_c_2_a | [[1A Questionnaire 2|1A2]] | 18+ | |
| - | | identifier of complete and reliable squash questionnaire | identificatie van een volledige en betrouwbare squash vragenlijst | squash_com_rel | squashsum_reliability_adu_c_1 | [[1A]] | 18+ | | + | | household activities: missing (version 2) | huishouden: niet ingevuld (versie 2) | hhmis_v2 | squashsum_missing_adu_c_2_b | [[1A Questionnaire 2|1A2]] | 18+ | |
| - | | complete questionnaire missing | hele vragenlijst niet ingevuld | totmis | squash_missing_adu_c_01 | [[1A]] | 18+ | | + | | leisure time: missing (version 2) | vrije tijd: niet ingevuld (versie 2) | vtmis_v2 | squashsum_missing_adu_c_2_c | [[1A Questionnaire 2|1A2]] | 18+ | |
| + | | work: missing (version 2) | werk: niet ingevuld (versie 2) | werkmis_v2 | squashsum_missing_adu_c_2_d | [[1A Questionnaire 2|1A2]] | 18+ | | ||
| + | | moderate-to-vigorous physical activity, total minutes per week (new version 2) | matig tot zwaar inspannend fysieke activiteit, totaal minuten per week (nieuw versie 2) | mvpa_mwk | squashsum_mvpaduration_adu_c_1 | [[1A Questionnaire 2|1A2]] | 18+ | | ||
| + | | moderate-to-vigorous physical activity,activity score (new version 2) | matig tot zwaar inspannend fysieke activiteit, activiteitenscore (nieuw versie 2) | mvpa_scor | squashsum_mvpascore_adu_c_1 | [[1A Questionnaire 2|1A2]] | 18+ | | ||
| + | | identifier of complete and reliable squash questionnaire | identificatie van een volledige en betrouwbare squash vragenlijst | squash_com_rel | squashsum_reliability_adu_c_2 | [[1A Questionnaire 2|1A2]] | 18+ | | ||
squash_sum_scores.1622803006.txt.gz · Last modified: 2021/06/04 12:36 by laura
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