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Protein Intake and the Risk of Pre-Frailty and Frailty in Norwegian Older Adults. The Tromsø Study 1994–2016

Permanent lenke
https://hdl.handle.net/10037/26291
DOI
https://doi.org/10.14283/jfa.2022.16
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Dato
2022-03-01
Type
Journal article
Tidsskriftartikkel
Peer reviewed

Forfatter
Konglevoll, Dina Moxness; Hjartåker, Anette; Hopstock, Laila Arnesdatter; Strand, Bjørn Heine; Thoresen, Magne; Andersen, Lene Frost; Carlsen, Monica Hauger
Sammendrag
BACKGROUND: Protein intake is suggested as an important dietary factor in the prevention of frailty, however, the infuence of lifelong intake remains unclear.

OBJECTIVES: The present study investigated the relationship between daily protein intake and patterns of protein intake over 21 years and the risk of pre-frailty/frailty.

DESIGN: Prospective cohort study.

SETTING: The population-based Tromsø Study in Tromsø municipality, Norway. PARTICIPANTS: In total, 1,906 women and 1,820 men aged >45 years in 1994 who participated in both Tromsø4 (1994–95) and Tromsø7 (2015–16).

MEASUREMENTS: Frailty status in Tromsø7 was measured according to Fried’s phenotype, classifying participants as “robust” (frailty components present: 0), “pre-frail” (1–2) or “frail” (>3). Daily intake of protein was estimated from self-reported habitual dietary intake using food frequency questionnaires and assessed as grams per kilogram bodyweight (g/kg BW) and per megajoule energy intake (g/MJ). The protein–frailty association was assessed via longitudinal and crosssectional multivariable logistic regression analyses.

RESULTS: The prevalence of pre-frailty and frailty in this study was 27% and 1.0%, respectively. Longitudinal analysis showed that the odds of pre-frailty/frailty decreased by 57% (odds ratio (OR) = 0.43, 95% confdence interval (CI) = 0.31;0.58, p<0.001) with the increase in intake of one additional gram of dietary protein per kg BW. The results obtained from cross-sectional analysis were similar. Tracking analysis showed that, compared to a stable high intake of protein in g/kg BW over time, other patterns of protein intake increased the risk of prefrailty/frailty. No associations were found between intake of protein in g/MJ and pre-frailty/frailty.

CONCLUSIONS: Intake of protein in g/kg BW both in mid-life and later in life was inversely associated with pre-frailty/frailty in older adults. This emphasizes the importance of an adequate protein intake to facilitate healthy ageing in Norwegian older adults.

Forlag
Springer
Sitering
Konglevoll DM, Hjartåker A, Hopstock LA, Strand BH, Thoresen M, Andersen, Carlsen MHC. Protein Intake and the Risk of Pre-Frailty and Frailty in Norwegian Older Adults. The Tromsø Study 1994–2016. Journal of Frailty & Aging (JFA). 2022:1-11
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