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Table representation of search results timeline featuring number of search results per year.

Year Number of Results
2011 14
2012 73
2013 155
2014 372
2015 495
2016 709
2017 943
2018 883
2019 1410
2020 1245
2021 1387
2022 1679
2023 1293
2024 494

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11,152 results

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Page 1
Global, regional and national burden of inflammatory bowel disease in 204 countries and territories from 1990 to 2019: a systematic analysis based on the Global Burden of Disease Study 2019.
Wang R, Li Z, Liu S, Zhang D. Wang R, et al. BMJ Open. 2023 Mar 28;13(3):e065186. doi: 10.1136/bmjopen-2022-065186. BMJ Open. 2023. PMID: 36977543 Free PMC article. Review.
A higher Socio-demographic Index was associated with higher age-standardised prevalence rates. CONCLUSIONS: IBD will continue to be a major public health burden due to increasing numbers of prevalent cases, deaths and DALYs. ...
A higher Socio-demographic Index was associated with higher age-standardised prevalence rates. CONCLUSIONS: IBD will continue …
Hypertension and frailty: a systematic review and meta-analysis.
Vetrano DL, Palmer KM, Galluzzo L, Giampaoli S, Marengoni A, Bernabei R, Onder G; Joint Action ADVANTAGE WP4 group. Vetrano DL, et al. BMJ Open. 2018 Dec 28;8(12):e024406. doi: 10.1136/bmjopen-2018-024406. BMJ Open. 2018. PMID: 30593554 Free PMC article.
The pooled prevalence of hypertension in frail individuals was 72% (95% CI 66% to 79%) and the pooled prevalence of frailty in individuals with hypertension was 14% (95% CI 12% to 17%). ...Given the possible influence of frailty on the risk-benefit ratio of treatmen …
The pooled prevalence of hypertension in frail individuals was 72% (95% CI 66% to 79%) and the pooled prevalence of frailty in …
Epidemiology of placenta previa accreta: a systematic review and meta-analysis.
Jauniaux E, Grønbeck L, Bunce C, Langhoff-Roos J, Collins SL. Jauniaux E, et al. BMJ Open. 2019 Nov 12;9(11):e031193. doi: 10.1136/bmjopen-2019-031193. BMJ Open. 2019. PMID: 31722942 Free PMC article.
OBJECTIVE: To estimate the prevalence and incidence of placenta previa complicated by placenta accreta spectrum (PAS) and to examine the different criteria being used for the diagnosis. ...The meta-analysis indicated a significant (p<0.001) heterogeneity b …
OBJECTIVE: To estimate the prevalence and incidence of placenta previa complicated by placenta accreta spectrum (PAS) and to examine …
Prevalence of atypical pathogens in patients with severe pneumonia: a systematic review and meta-analysis.
Wang S, Tang J, Tan Y, Song Z, Qin L. Wang S, et al. BMJ Open. 2023 Apr 11;13(4):e066721. doi: 10.1136/bmjopen-2022-066721. BMJ Open. 2023. PMID: 37041056 Free PMC article.
OBJECTIVES: We aimed to summarise the prevalence of atypical pathogens in patients with severe pneumonia to understand the prevalence of severe pneumonia caused by atypical pathogens, improve clinical decision-making and guide antibiotic use. ...Meta-regression show …
OBJECTIVES: We aimed to summarise the prevalence of atypical pathogens in patients with severe pneumonia to understand the prevale …
Prevalence of cognitive frailty among older adults in China: a systematic review and meta-analysis.
Liu J, Xu S, Wang J, Yan Z, Wang Z, Liang Q, Luan X. Liu J, et al. BMJ Open. 2023 Apr 19;13(4):e066630. doi: 10.1136/bmjopen-2022-066630. BMJ Open. 2023. PMID: 37076151 Free PMC article.
OBJECTIVE: This study aimed to investigate the prevalence of cognitive frailty among older adults in China. DESIGN: Systematic review and meta-analysis. ...Moreover, the prevalence of cognitive frailty was higher in women than in men. Furthermore, the …
OBJECTIVE: This study aimed to investigate the prevalence of cognitive frailty among older adults in China. DESIGN: Systematic review …
The prevalence of acne in Mainland China: a systematic review and meta-analysis.
Li D, Chen Q, Liu Y, Liu T, Tang W, Li S. Li D, et al. BMJ Open. 2017 Apr 20;7(4):e015354. doi: 10.1136/bmjopen-2016-015354. BMJ Open. 2017. PMID: 28432064 Free PMC article. Review.
RESULTS: 25 relevant studies were included in this meta-analysis. The overall pooled prevalence rates of acne were 39.2% (95% CI 0.310 to 0.479). ...CONCLUSIONS: In Mainland China, primary and secondary students exhibited higher prevalence rates than undergra …
RESULTS: 25 relevant studies were included in this meta-analysis. The overall pooled prevalence rates of acne were 39.2% (95% …
Prevalence of post-dialysis fatigue: a systematic review and meta-analysis.
Dou J, Liu H, Ma Y, Wu YY, Tao XB. Dou J, et al. BMJ Open. 2023 Jun 13;13(6):e064174. doi: 10.1136/bmjopen-2022-064174. BMJ Open. 2023. PMID: 37311633 Free PMC article.
OBJECTIVES: The purpose of this study was to synthesise data on the prevalence of post-dialysis fatigue (PDF) among haemodialysis (HD) patients. ...Egger's test revealed no publication bias among the studies (p=0.144). CONCLUSIONS: PDF is highly prevalent among HD p …
OBJECTIVES: The purpose of this study was to synthesise data on the prevalence of post-dialysis fatigue (PDF) among haemodialysis (HD …
Prevalence of tinnitus and hyperacusis in children and adolescents: a systematic review.
Rosing SN, Schmidt JH, Wedderkopp N, Baguley DM. Rosing SN, et al. BMJ Open. 2016 Jun 3;6(6):e010596. doi: 10.1136/bmjopen-2015-010596. BMJ Open. 2016. PMID: 27259524 Free PMC article. Review.
OBJECTIVES: To systematically review studies of the epidemiology of tinnitus and hyperacusis in children and young people, in order to determine the methodological differences implicated in the variability of prevalence estimates and the influence of p …
OBJECTIVES: To systematically review studies of the epidemiology of tinnitus and hyperacusis in children and young people, in …
Estimating the prevalence of heterozygous familial hypercholesterolaemia: a systematic review and meta-analysis.
Akioyamen LE, Genest J, Shan SD, Reel RL, Albaum JM, Chu A, Tu JV. Akioyamen LE, et al. BMJ Open. 2017 Sep 1;7(9):e016461. doi: 10.1136/bmjopen-2017-016461. BMJ Open. 2017. PMID: 28864697 Free PMC article. Review.
Results were limited to studies published in English between January 1990 and January 2017. Studies were eligible if they determined FH prevalence using clinical criteria or DNA-based analyses. We determined a pooled point prevalence of FH in adults an …
Results were limited to studies published in English between January 1990 and January 2017. Studies were eligible if they determined …
Prevalence of malnutrition among old people in Africa: systematic review and meta-analysis.
Seid AM, Fentahun N. Seid AM, et al. BMJ Open. 2022 Nov 30;12(11):e065197. doi: 10.1136/bmjopen-2022-065197. BMJ Open. 2022. PMID: 36450428 Free PMC article.
OBJECTIVE: To summarise available evidence and estimate the pooled prevalence of malnutrition among old people in Africa. DESIGN: Systematic review and meta-analysis. ...RESULTS: A total of 1442 studies were retrieved based on the search strategy, where only 36 stud …
OBJECTIVE: To summarise available evidence and estimate the pooled prevalence of malnutrition among old people in Africa. DESIGN: Sys …
11,152 results
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