Dietary inflammatory index and the risk of cognitive impairment in middle-aged and elderly people: a meta-analysis
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摘要:
目的 系统评价膳食炎症指数(dietary inflammatory index, DII)与中老年人认知障碍发生风险的关系。 方法 检索中国知网、万方、维普、生物医学文献、PubMed、Science Direct、Springer、Cochrane Library、Embase等数据库从建库至2022年6月20日发表的关于DII与中老年人认知障碍的文献,按照纳入、排除标准严格筛选。采用纽卡斯尔-渥太华(Newcastle-Ottawa scale, NOS)量表及美国卫生保健质量和研究机构(Agency for Healthcare Research and Quality, AHRQ)推荐的横断面研究质量评价量表评估筛选后的文献质量,采用Revman 5.4软件和Stata 15.1软件进行Meta分析,随机效应模型汇总OR值和95% CI。 结果 共纳入7项研究,包含15 428名参与者。Meta分析显示,与最低位数DII相比,最高位数DII与中老年人认知障碍风险增加相关(OR=1.62,95% CI:1.27~2.05,P < 0.01),尤其是在使用食物频率问卷调查膳食数据(OR=1.46,95% CI:1.21~1.77,P=0.17)及计算能量调整后的DII的研究(OR=1.71,95% CI:1.26~2.33,P=0.07)中。 结论 与低DII饮食相比,高DII饮食可能与中老年人认知障碍的风险增加有关,受纳入研究数量和质量的限制,未来仍需更多高质量研究予以验证。 Abstract:Objective To evaluate the relationship between dietary inflammatory index (DII) and the risk of cognitive impairment in middle-aged and elderly people. Methods We systematically searched CNKI, Cqvip, Wanfang Data, SinoMed, PubMed, Science Direct, Springer, Cochrane Library and Embase databases from inception to June 20, 2022, screened studies based on the inclusion and exclusion criteria. The quality of the studies included was assessed by the Newcastle-Ottawa scale and the Agency for Healthcare Research and Quality methodology checklist. Revman 5.4 and Stata 15.1 software were used for meta-analysis. The pooled odds ratio (OR) and 95% confidence intervals (CI) were calculated using random-effects model. Results A total of 7 articles with 15 428 participants were included. In the present meta-analysis, the DII was associated with the risk of cognitive impairment (OR=1.62, 95% CI: 1.27-2.05, P < 0.01), especially in studies that used food frequency questionnaire (FFQ) (OR=1.46, 95% CI: 1.21-1.77, P=0.17) and adjusted energy intake (OR=1.71, 95% CI: 1.26-2.33, P=0.07). Conclusions Compared with the low DII diet, the high DII diet is associated with an increased risk of cognitive impairment. Due to limited number and quality of included studies, the above-mentioned conclusion still needs to be verified by more high-quality studies. -
Key words:
- Dietary inflammation index /
- Cognitive impairment /
- Meta-analysis
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表 1 纳入研究的基线特征及质量评估
Table 1. Baseline characteristics and quality assessment of the studies included in the systematic review
作者,年份,国家
Author, Year, Country研究类型
Study type研究对象
Study participants病例数/总样本量
Number of case/total sample随访时间/年
Follow-up/YearSun等[12], 2022, 中国
Sun et al[12],2022,China横断面研究
Cross-sectional study2011―2014年美国国家健康与营养调查,≥ 60岁
National health and nutrition examination survey,USA (2011-2014),≥ 60 years597/1 198 NA Shin等[13], 2018, 美国
Shin et al[13], 2018, USA横断面研究Cross- sectional study 2012年韩国首尔、京畿道和仁川地区老年人的研究,≥ 65岁
Korea elderly study of the Seoul, Gyeonggi Province, and Incheon (2012),≥ 65 years77/239 NA Skoczek-Rubińska A等[14], 2021, 波兰
Skoczek-Rubińska A et al[14], 2021, Poland横断面研究Cross- sectional study 2014―2020年波兰绝经后妇女研究,(61.0±0.4)岁
Study of the postmenopausal women from the Poland (2014-2020),(61.0±0.4)years25/222 NA Liu等[15], 2021, 中国
Liu et al[15], 2021, China横断面研究Cross- sectional study 2018―2019年天津老年营养与认知队列研究,≥ 60岁
Tianjin elderly nutrition and cognition cohort study (2018-2019),≥ 60 years332/3 386 NA Charisis等[16], 2021, 希腊
Charisis et al[16], 2021, Greece队列研究Cohort study 希腊老龄化和饮食纵向调查,(73.1±5.0)岁
Hellenic longitudinal investigation of aging and diet study,(73.1±5.0)years62/1 059 3.0 Hayden等[17], 2017, 美国
Hayden et al[17], 2017, USA队列研究Cohort study 美国妇女健康倡议记忆研究,65~79岁
Women′s health initiative memory study, USA, 65-79 years1 081/7 085 9.7 Zhang等[18], 2021, 中国
Zhang et al[18], 2021, China队列研究Cohort study 2014―2018年中国胆固醇和氧固醇对阿尔茨海默病的作用和机制研究,50~70岁
Effects and mechanism investigation of cholesterol and oxysterol on Alzheimer′s disease study (2014-2018), China, 50-70 years946/2 239 2.3 作者,年份,国家
Author, Year, Country膳食评估工具
DietaryassessmentE-DII ①/DII ② 认知评估工具
Cognitive functionassessmentOR/HR/RR值 value(95% CI) 文献质量/分
Quality of study/scoreSun等[12], 2022,中国
Sun et al[12], 2022,China24 h膳食回顾调查
24 h dietary record27(< 0;≥0) DSST, CERAD-immediate/CERAD-delayed, 动物流畅性测试Animal fluency test 1.48(1.01~2.17) 8 Shin D等[13], 2018, 美国
Shin D et al[13], 2018, USA24 h膳食回顾调查
24 h dietary record32(-1.1 ± 1.0) MMSE 6.32(1.18~33.78) 8 Skoczek-Rubińska A等[14], 2021, 波兰
Skoczek-Rubińska A et al[14], 2021, Poland3 d膳食记录
3 day dietary record45(-5.02~7.92) MMSE 11.10(2.22~55.56) 8 Liu等[15], 2021, 中国
Liu et al[15], 2021, ChinaFFQ 22(< -0.26; -0.26~1.39; >1.39) Petersen’s标准criteria 1.65(1.23~2.21) 9 Charisis等[16], 2021, 希腊
Charisis et al[16], 2021, GreeceFFQ 36(< -1.76; -1.76~0.21; >0.21) DSM-IV-TR 2.89(1.20~6.96) 9 Hayden等[17], 2017, 美国
Hayden et al[17], 2017, USAFFQ 32(< -2; -2~ < 0; 0~2; >2) 3MS, TMT A-B, CERAD, GDS-15 1.27(1.06~1.52) 8 Zhang等[18], 2021, 中国
Zhang et al[18], 2021, ChinaFFQ 24(< -1.53; -1.53~ < 0.21; 0.21~1.87; >1.87) MMSE, MoCA 1.46(1.14~1.87) 8 注:DII,膳食炎症指数;E-DII,经能量调整的膳食炎症指数;DSST,数字符号替换测验;CERAD-immediate/CERAD-delayed,建立阿尔茨海默病注册中心的联盟(CERAD)Word学习子测试;MMSE,简易精神状态量表;DSM-IV-TR,美国精神疾病诊断与统计手册第四版修订版;3MS,改良的简易精神状态量表;MoCA,蒙特利尔认知评估量表;TMT A-B,连线测试A部分和B部分;GDS-15,老年抑郁量表-15;NA,缺乏有效值。
①表示E-DII所含食物参数种类(得分范围); ②表示DII所含食物参数种类(得分范围)。
Note: DII, dietary inflammatory index; E-DII, energy-adjusted dietary inflammatory index; DSST, digit symbol substitution test; CERAD-immediate/CERAD-delayed, the consortium to establish a registry for Alzheimer′s disease word learning sub-test; MMSE, mini-mental state examination; DSM-IV-TR, diagnostic and statistical manual of mental disorders, 4th Edition, Text Revision; 3MS, modified mini-mental state examination; MoCA, Montreal cognitive assessment; TMT A-B, trail making test parts A and B; GDS-15, 15-item geriatric depression scale-short form; NA, not available.
①Category of food parameters in E-DII(range of score); ②Category of food parameters in DII(range of score).表 2 DII与认知障碍风险关系的亚组分析结果
Table 2. Subgroup analyses of the association between the DII score and the risk of cognitive impairment in middle-aged and elderly people
亚组 Subgroup 研究数量
Number of studyOR值value (95% CI) I2值/% value P(异质性)值
P (heterogeneity) value总体 Total 7 1.62(1.27~2.05) 58 0.03 研究类型 Type of study 横断面研究 Cross-sectional study 4 2.07(1.24~3.48) 63 0.04 队列研究 Cohort study 3 1.42(1.12~1.79) 46 0.16 膳食评估工具 Dietary assessment tool 食物频率问卷 Food frequency questionnaire 4 1.46(1.21~1.77) 40 0.17 24 h膳食回顾法 24 h dietary record 2 2.41(0.63~9.22) 63 0.10 3 d膳食记录 3 day dietary record 1 11.10(2.22~55.50) ― ― 纳入DII计算的食物参数类别 The category of food parameters included in the DII ≥30 4 3.15(1.19~8.36) 77 <0.05 < 30 3 1.52(1.29~1.81) 0 0.81 DII是否经能量调整 Whether the energy was adjusted in the DII 未调整 Unadjusted 2 1.70(0.79~3.69) 69 0.07 调整 Adjusted 5 1.71(1.26~2.33) 55 0.07 注:DII,膳食炎症指数;E-DII,经能量调整的膳食炎症指数。
1. “―”表示“不适用”。
Note: DII,dietary inflammatory index; E-DII, energy-adjusted dietary inflammatory index.
1. "―" stands for"not applicable". -
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