TY - JOUR
T1 - Predictors of weight loss in obese patients with obstructive sleep apnea
AU - Altree, Thomas J.
AU - Bartlett, Delwyn J.
AU - Marshall, Nathaniel S.
AU - Hoyos, Camilla M.
AU - Phillips, Craig L.
AU - Birks, Callum
AU - Kanagaratnam, Aran
AU - Mullins, Anna
AU - Serinel, Yasmina
AU - Wong, Keith K.H.
AU - Yee, Brendon J.
AU - Grunstein, Ronald R.
AU - Cayanan, Elizabeth A.
PY - 2022/6
Y1 - 2022/6
N2 - Purpose: Consistent predictors of weight loss outcomes with very low-energy diets (VLEDs) in obstructive sleep apnea (OSA) have not been identified. This study aimed to identify variables predictive of weight loss success in obese patients with OSA undertaking an intensive weight loss programme. Methods: We analysed biological, psychological, and behavioural variables as potential predictors of weight loss in obese patients with OSA after a 2-month VLED followed by one of two 10-month weight loss maintenance diets. Actigraphy, in-lab polysomnography, urinary catecholamines, and various psychological and behavioural variables were measured at baseline, 2, and 12 months. Spearman’s correlations analysed baseline variables with 2-month weight loss, and 2-month variables with 2–12 month-weight change. Results: Forty-two patients completed the VLED and thirty-eight completed the maintenance diets. Actigraphy data revealed that late bedtime (rs = − 0.45, p = < 0.01) was correlated with 2-month weight loss. The change in the time that participants got out of bed (rise-time) from baseline to two months was also correlated with 2-month weight loss (rs = 0.36, p = 0.03). The Impact of Weight on Quality of Life-Lite questionnaire (IWQOL) Public Distress domain (rs = − 0.54, p = < 0.01) and total (rs = − 0.38, p = 0.02) scores were correlated with weight loss maintenance from 2 to 12 months. Conclusions: Results from this small patient sample reveal correlations between actigraphy characteristics and weight loss in obese patients with OSA. We suggest the IWQOL may also be a useful clinical tool to identify OSA patients at risk of weight regain after initial weight loss.
AB - Purpose: Consistent predictors of weight loss outcomes with very low-energy diets (VLEDs) in obstructive sleep apnea (OSA) have not been identified. This study aimed to identify variables predictive of weight loss success in obese patients with OSA undertaking an intensive weight loss programme. Methods: We analysed biological, psychological, and behavioural variables as potential predictors of weight loss in obese patients with OSA after a 2-month VLED followed by one of two 10-month weight loss maintenance diets. Actigraphy, in-lab polysomnography, urinary catecholamines, and various psychological and behavioural variables were measured at baseline, 2, and 12 months. Spearman’s correlations analysed baseline variables with 2-month weight loss, and 2-month variables with 2–12 month-weight change. Results: Forty-two patients completed the VLED and thirty-eight completed the maintenance diets. Actigraphy data revealed that late bedtime (rs = − 0.45, p = < 0.01) was correlated with 2-month weight loss. The change in the time that participants got out of bed (rise-time) from baseline to two months was also correlated with 2-month weight loss (rs = 0.36, p = 0.03). The Impact of Weight on Quality of Life-Lite questionnaire (IWQOL) Public Distress domain (rs = − 0.54, p = < 0.01) and total (rs = − 0.38, p = 0.02) scores were correlated with weight loss maintenance from 2 to 12 months. Conclusions: Results from this small patient sample reveal correlations between actigraphy characteristics and weight loss in obese patients with OSA. We suggest the IWQOL may also be a useful clinical tool to identify OSA patients at risk of weight regain after initial weight loss.
KW - Actigraphy
KW - Obesity
KW - Obstructive sleep apnea
KW - Very low-energy diet
UR - http://www.scopus.com/inward/record.url?scp=85112648660&partnerID=8YFLogxK
UR - http://purl.org/au-research/grants/NHMRC/571421
U2 - 10.1007/s11325-021-02455-4
DO - 10.1007/s11325-021-02455-4
M3 - Article
C2 - 34357505
AN - SCOPUS:85112648660
SN - 1520-9512
VL - 26
SP - 753
EP - 762
JO - Sleep and Breathing
JF - Sleep and Breathing
IS - 2
ER -