Evidence map›Paper›PMID 36315018›Full record

ArticleInternational journal of epidemiology2023

Total calcium, dairy foods and risk of colorectal cancer: a prospective cohort study of younger US women.

Hanseul Kim, Jinhee Hur, Kana Wu, Mingyang Song, Molin Wang, Stephanie A Smith-Warner, Xuehong Zhang, Edward L Giovannucci

Open access · greenAbstract read
In one paragraph

Article in International journal of epidemiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 2 pooled it
5.2field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 2 syntheses or guidelines pooled it, 26 citations in OpenAlex.

  1. Pooled it
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 2 countries.

Hanseul KimDepartment of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA.ORCID 0000-0002-5102-6118
Jinhee HurDepartment of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA.ORCID 0000-0003-0968-208X
Kana WuDepartment of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
Mingyang SongDepartment of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA.ORCID 0000-0002-4780-4642
Molin WangDepartment of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
Stephanie A Smith-WarnerDepartment of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
Xuehong ZhangDepartment of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
Edward L GiovannucciDepartment of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA.ORCID 0000-0002-6123-0219
Harvard University · USBrigham and Women's Hospital · US

Funding

Life Course Cancer Epidemiology Cohort in WomenU01CA176726 · NCI · HARVARD UNIVERSITY D/B/A HARVARD SCHOOL OF PUBLIC HEALTH · PI ELIASSEN, A. HEATHER, WILLETT, WALTER C. · 2018 to 2025
$22.4M
Marine Omega-3 Polyunsaturated Fatty Acid, Gut Microbiome, and Colorectal Cancer PreventionR00CA215314 · NCI · HARVARD SCHOOL OF PUBLIC HEALTH · PI SONG, MINGYANG · 2018 to 2020
$679k
Multidisciplinary Study of Folate Intake and Colorectal CancerR21CA252962 · NCI · YALE UNIVERSITY · PI ZHANG, XUEHONG · 2021 to 2022
$487k
Integrating diet, lifestyle and tumor tissue molecular subtyping to study the role of adolescent calcium intake on the risk of early onset colorectal neoplasiaR21CA230873 · NCI · HARVARD SCHOOL OF PUBLIC HEALTH · PI OGINO, SHUJI, WU, KANA · 2018 to 2019
$427k
Integrating diet and tissue whole exome sequencing data to study processed meat and colorectal cancerR21CA222940 · NCI · HARVARD SCHOOL OF PUBLIC HEALTH · PI GIANNAKIS, MARIOS, WU, KANA · 2018 to 2019
$421k
Early life risk factors and risk of colorectal neoplasiaR03CA197879 · NCI · HARVARD SCHOOL OF PUBLIC HEALTH · PI WU, KANA · 2015 to 2016
$162k
NCI NIH HHS R00 CA215314NCI NIH HHS R03 CA197879NCI NIH HHS R21 CA222940NCI NIH HHS R21 CA230873NCI NIH HHS R21 CA252962NCI NIH HHS U01 CA176726
6 · The paper itself

Abstract

backgroundAlthough colorectal cancer (CRC) incidence is declining among adults aged ≥65 years, CRC incidence in younger adults has been rising. The protective role of calcium in colorectal carcinogenesis has been well established, but evidence is lacking on whether the association varies by age at diagnosis. We investigated the association between total calcium intake and risk of overall CRC and CRC before age 55 years.

methodsIn the Nurses' Health Study II (1991-2015), 94 205 women aged 25-42 years at baseline were included in the analysis. Diet was assessed every 4 years through validated food frequency questionnaires. Multivariable-adjusted hazard ratios (HRs) and 95% CIs for CRC were estimated using the Cox proportional hazards model.

resultsWe documented 349 incident CRC cases during 2 202 604 person-years of follow-up. Higher total calcium intake was associated with a reduced risk of CRC. Compared with those with <750 mg/day of total calcium intake, the HR of CRC was 0.61 (95% CI, 0.38-0.97) for those who consumed ≥1500 mg/day (P for trend = 0.01). The HR per 300 mg/day increase was 0.85 (95% CI, 0.76-0.95). There was a suggestive inverse association between total calcium intake and CRC before age 55 years (HR per 300 mg/day increase, 0.87; 95% CI, 0.75-1.00), suggesting the importance of calcium intake in the younger population.

conclusionsIn a cohort of younger women, which reflects the birth cohorts, time periods and age ranges paralleling the recent rise in CRC, higher calcium intake was associated with a decreased risk of CRC.

Indexed as

CalciumColorectal NeoplasmsAdultFemaleFoodHumansProspective StudiesRisk FactorsSurveys and QuestionnairesCalciumCalciumcolorectal cancerdairy foodsearly-onset colorectal cancerepidemiology

Identifiers

PMID36315018
PMCPMC9908061
OpenAlexW4307772000

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.