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Prevalence of anemia in Chinese nursing home older adults: implication of age and renal impairment.
Geriatr Gerontol Int. 2013 Jul; 13(3):591-6.GG

Abstract

AIM

There is little data regarding the prevalence and associated comorbidities of anemia in Chinese nursing home older adults. The objective of this study was to investigate the prevalence and associated comorbidities of anemia in Chinese nursing home older adults.

METHODS

We carried out a retrospective cross-sectional study in nine nursing homes in Hong Kong. The hemoglobin (Hb) level, mean corpuscular volume (MCV), serum creatinine and comorbidities data of residents were examined. Older adults were regarded as anemic according to the World Health Organization criteria (Hb <13 g/dL for men and <12 g/dL for women). The glomerular filtration rate (eGFR) was estimated by the Modification of Diet in Renal Disease Study (MDRD [Chinese-adjusted]) equation. Patients with chronic renal impairment were defined as having eGFR <60 mL/min/1.73 m(2) .

RESULTS

A total of 812 residents were included (mean age 86.0 ± 7.6 years). The mean hemoglobin was 12.0 ± 1.8 g/dL in men and 11.4 ± 1.6g/dL in women. The mean eGFR was 75.1 ± 31.7 mL/min/1.73 m(2) . A total of 67.0% of residents had anemia (70.5% in men and 65.2% in women). Anemic older adults were older and had a higher prevalence of renal impairment than non-anemic older adults (P<0.001). There was no significant difference between the two groups regarding the prevalence of other comorbidities. When stratified into different age groups, there were significant correlations between anemia and renal impairment in all subgroups (age ≤ 80 years, P<0.05; age 81-90 years, P<0.01; age >90 years, P<0.05). The same correlation was found between normocytic anemia and renal impairment. Conversely, when stratified according to eGFR (≥ 60 mL/min/1.73 m(2) vs <60 mL/min/1.73 m(2)), we did not observe a significant correlation between anemia and age group.

CONCLUSION

In conclusion, anemia is prevalent in Chinese nursing home residents and is strongly associated with renal impairment. Further studies of early identification and management of anemia with renal impairment are recommended in this population.

Authors+Show Affiliations

Department of Medicine and Geriatrics, Fung Yiu King Hospital, Hong Kong, China. tuenching@yahoo.com.hkNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Multicenter Study

Language

eng

PubMed ID

22994890

Citation

Chan, Tuen Ching, et al. "Prevalence of Anemia in Chinese Nursing Home Older Adults: Implication of Age and Renal Impairment." Geriatrics & Gerontology International, vol. 13, no. 3, 2013, pp. 591-6.
Chan TC, Yap DY, Shea YF, et al. Prevalence of anemia in Chinese nursing home older adults: implication of age and renal impairment. Geriatr Gerontol Int. 2013;13(3):591-6.
Chan, T. C., Yap, D. Y., Shea, Y. F., Luk, J. K., Chan, F. H., & Chu, L. W. (2013). Prevalence of anemia in Chinese nursing home older adults: implication of age and renal impairment. Geriatrics & Gerontology International, 13(3), 591-6. https://doi.org/10.1111/j.1447-0594.2012.00942.x
Chan TC, et al. Prevalence of Anemia in Chinese Nursing Home Older Adults: Implication of Age and Renal Impairment. Geriatr Gerontol Int. 2013;13(3):591-6. PubMed PMID: 22994890.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Prevalence of anemia in Chinese nursing home older adults: implication of age and renal impairment. AU - Chan,Tuen Ching, AU - Yap,Desmond Yat Hin, AU - Shea,Yat Fung, AU - Luk,James Ka Hay, AU - Chan,Felix Hon Wai, AU - Chu,Leung Wing, Y1 - 2012/09/19/ PY - 2012/9/22/entrez PY - 2012/9/22/pubmed PY - 2014/3/7/medline SP - 591 EP - 6 JF - Geriatrics & gerontology international JO - Geriatr Gerontol Int VL - 13 IS - 3 N2 - AIM: There is little data regarding the prevalence and associated comorbidities of anemia in Chinese nursing home older adults. The objective of this study was to investigate the prevalence and associated comorbidities of anemia in Chinese nursing home older adults. METHODS: We carried out a retrospective cross-sectional study in nine nursing homes in Hong Kong. The hemoglobin (Hb) level, mean corpuscular volume (MCV), serum creatinine and comorbidities data of residents were examined. Older adults were regarded as anemic according to the World Health Organization criteria (Hb <13 g/dL for men and <12 g/dL for women). The glomerular filtration rate (eGFR) was estimated by the Modification of Diet in Renal Disease Study (MDRD [Chinese-adjusted]) equation. Patients with chronic renal impairment were defined as having eGFR <60 mL/min/1.73 m(2) . RESULTS: A total of 812 residents were included (mean age 86.0 ± 7.6 years). The mean hemoglobin was 12.0 ± 1.8 g/dL in men and 11.4 ± 1.6g/dL in women. The mean eGFR was 75.1 ± 31.7 mL/min/1.73 m(2) . A total of 67.0% of residents had anemia (70.5% in men and 65.2% in women). Anemic older adults were older and had a higher prevalence of renal impairment than non-anemic older adults (P<0.001). There was no significant difference between the two groups regarding the prevalence of other comorbidities. When stratified into different age groups, there were significant correlations between anemia and renal impairment in all subgroups (age ≤ 80 years, P<0.05; age 81-90 years, P<0.01; age >90 years, P<0.05). The same correlation was found between normocytic anemia and renal impairment. Conversely, when stratified according to eGFR (≥ 60 mL/min/1.73 m(2) vs <60 mL/min/1.73 m(2)), we did not observe a significant correlation between anemia and age group. CONCLUSION: In conclusion, anemia is prevalent in Chinese nursing home residents and is strongly associated with renal impairment. Further studies of early identification and management of anemia with renal impairment are recommended in this population. SN - 1447-0594 UR - https://www.unboundmedicine.com/medline/citation/22994890/Prevalence_of_anemia_in_Chinese_nursing_home_older_adults:_implication_of_age_and_renal_impairment_ L2 - https://doi.org/10.1111/j.1447-0594.2012.00942.x DB - PRIME DP - Unbound Medicine ER -