JAMA network open · 2019
Association of Anorexia Nervosa With Risk of Cancer: A Systematic Review and Meta-analysis.
СтатьяМетаанализПоддержка исследования: вне правительства СШАПоддержка правительства СШАСистематический обзорНазвание и аннотация: Перевод в очереди
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Catalá-López Ferrán, Forés-Martos Jaume, Driver Jane A, Page Matthew J, Hutton Brian, Ridao Manuel, Alonso-Arroyo Adolfo, Macías Saint-Gerons Diego, Gènova-Maleras Ricard, Valderas José M, Vieta Eduard, Valencia Alfonso, Tabarés-Seisdedos Rafael
Аннотация
IMPORTANCE: Anorexia nervosa is recognized as an important cause of morbidity in young people. However, the risk of cancer in people with anorexia nervosa remains uncertain.
OBJECTIVE: To evaluate the association of anorexia nervosa with the risk of developing or dying of cancer.
DATA SOURCES: MEDLINE, Scopus, Embase, and Web of Science from database inception to January 9, 2019.
STUDY SELECTION: Published observational studies in humans examining the risk of cancer in people with anorexia nervosa compared with the general population or those without anorexia nervosa. Studies needed to report incidence or mortality rate ratios (RRs).
DATA EXTRACTION AND SYNTHESIS: Screening, data extraction, and methodological quality assessment were performed by at least 2 researchers independently. A random-effects model was used to synthesize individual studies. Heterogeneity (I2) was assessed and 95% prediction intervals (PIs) were calculated.
MAIN OUTCOMES AND MEASURES: All cancer incidence and cancer mortality associated with anorexia nervosa. Secondary outcomes were site-specific cancer incidence and mortality.
RESULTS: Seven cohort studies published in 10 articles (42 602 participants with anorexia nervosa) were included. Anorexia nervosa was not associated with risk of developing any cancer (4 studies in women; RR, 0.97; 95% CI, 0.89-1.06; P = .53; I2, 0%; 95% PI, 0.80-1.18; moderate confidence). Anorexia nervosa was associated with decreased breast cancer incidence (5 studies in women; RR, 0.60; 95% CI, 0.50-0.80; P < .001; I2, 0%; 95% PI, 0.44-0.83; high confidence). Conversely, anorexia nervosa was associated with increased risk of developing lung cancer (3 studies in women; RR, 1.50; 95% CI, 1.06-2.12; P = .001; I2, 0%; 95% PI, 0.19-16.46; low confidence) and esophageal cancer (2 studies in women; RR, 6.10; 95% CI, 2.30-16.18; P < .001; I2, 0%; low confidence).
CONCLUSIONS AND RELEVANCE: Among people with anorexia nervosa, risk of developing cancer did not differ compared with the general population, but a significantly reduced risk of breast cancer was observed. Understanding the mechanisms underlying these associations could have important preventive potential.
OBJECTIVE: To evaluate the association of anorexia nervosa with the risk of developing or dying of cancer.
DATA SOURCES: MEDLINE, Scopus, Embase, and Web of Science from database inception to January 9, 2019.
STUDY SELECTION: Published observational studies in humans examining the risk of cancer in people with anorexia nervosa compared with the general population or those without anorexia nervosa. Studies needed to report incidence or mortality rate ratios (RRs).
DATA EXTRACTION AND SYNTHESIS: Screening, data extraction, and methodological quality assessment were performed by at least 2 researchers independently. A random-effects model was used to synthesize individual studies. Heterogeneity (I2) was assessed and 95% prediction intervals (PIs) were calculated.
MAIN OUTCOMES AND MEASURES: All cancer incidence and cancer mortality associated with anorexia nervosa. Secondary outcomes were site-specific cancer incidence and mortality.
RESULTS: Seven cohort studies published in 10 articles (42 602 participants with anorexia nervosa) were included. Anorexia nervosa was not associated with risk of developing any cancer (4 studies in women; RR, 0.97; 95% CI, 0.89-1.06; P = .53; I2, 0%; 95% PI, 0.80-1.18; moderate confidence). Anorexia nervosa was associated with decreased breast cancer incidence (5 studies in women; RR, 0.60; 95% CI, 0.50-0.80; P < .001; I2, 0%; 95% PI, 0.44-0.83; high confidence). Conversely, anorexia nervosa was associated with increased risk of developing lung cancer (3 studies in women; RR, 1.50; 95% CI, 1.06-2.12; P = .001; I2, 0%; 95% PI, 0.19-16.46; low confidence) and esophageal cancer (2 studies in women; RR, 6.10; 95% CI, 2.30-16.18; P < .001; I2, 0%; low confidence).
CONCLUSIONS AND RELEVANCE: Among people with anorexia nervosa, risk of developing cancer did not differ compared with the general population, but a significantly reduced risk of breast cancer was observed. Understanding the mechanisms underlying these associations could have important preventive potential.