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The effect of hypertension on the risk for kidney cancer in Korean men.
Kidney Int 2005; 67(2):647-52KI

Abstract

BACKGROUND

The role of hypertension as a kidney cancer risk factor remains unclear. The objectives of this study were to prospectively examine the effects of hypertension on kidney cancer death, and to determine the synergistic effect of hypertension and smoking on kidney cancer risk.

METHODS

The cohort was composed of 576,562 Korean men, aged 30 and older, who received health insurance from the National Health Insurance Corporation, and who underwent biennial medical evaluations in 1992 and 1994. At baseline, 343,132 men (59.5%) were identified as current cigarette smokers. Between 1995 and 2001, there were 92 deaths from kidney cancer (2.2/100,000 person years). Using deaths from kidney cancer as the main outcome variable, Cox proportional hazards models were tested while controlling for age and other covariates.

RESULTS

An initial finding indicated that hypertension increased the mortality risk of kidney cancer [relative risk (RR) 2.43; 95% confidence interval (CI) 1.57-3.76]. After stratification of smoking status, RR for hypertension on kidney cancer was still increased for current smokers (RR 2.80; 95% CI 1.64-4.79). For current smokers, those with systolic blood pressure >/=160 mm Hg had a risk of kidney cancer that was 8.18 (95% CI, 3.13-21.36) times higher than those with a pressure less than 120 mm Hg. When the interaction term was included in the multivariate model, there was no significant synergistic effect of hypertension with current smoking on the risk of death from kidney cancer.

CONCLUSION

This study supports the hypothesis that hypertension is an independent risk factor of kidney cancer mortality.

Authors+Show Affiliations

National Health Insurance Corporation Ilsan Hospital, Koyang, Korea.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

15673312

Citation

Choi, Moon Young, et al. "The Effect of Hypertension On the Risk for Kidney Cancer in Korean Men." Kidney International, vol. 67, no. 2, 2005, pp. 647-52.
Choi MY, Jee SH, Sull JW, et al. The effect of hypertension on the risk for kidney cancer in Korean men. Kidney Int. 2005;67(2):647-52.
Choi, M. Y., Jee, S. H., Sull, J. W., & Nam, C. M. (2005). The effect of hypertension on the risk for kidney cancer in Korean men. Kidney International, 67(2), pp. 647-52.
Choi MY, et al. The Effect of Hypertension On the Risk for Kidney Cancer in Korean Men. Kidney Int. 2005;67(2):647-52. PubMed PMID: 15673312.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The effect of hypertension on the risk for kidney cancer in Korean men. AU - Choi,Moon Young, AU - Jee,Sun Ha, AU - Sull,Jae Woong, AU - Nam,Chung Mo, PY - 2005/1/28/pubmed PY - 2005/6/10/medline PY - 2005/1/28/entrez SP - 647 EP - 52 JF - Kidney international JO - Kidney Int. VL - 67 IS - 2 N2 - BACKGROUND: The role of hypertension as a kidney cancer risk factor remains unclear. The objectives of this study were to prospectively examine the effects of hypertension on kidney cancer death, and to determine the synergistic effect of hypertension and smoking on kidney cancer risk. METHODS: The cohort was composed of 576,562 Korean men, aged 30 and older, who received health insurance from the National Health Insurance Corporation, and who underwent biennial medical evaluations in 1992 and 1994. At baseline, 343,132 men (59.5%) were identified as current cigarette smokers. Between 1995 and 2001, there were 92 deaths from kidney cancer (2.2/100,000 person years). Using deaths from kidney cancer as the main outcome variable, Cox proportional hazards models were tested while controlling for age and other covariates. RESULTS: An initial finding indicated that hypertension increased the mortality risk of kidney cancer [relative risk (RR) 2.43; 95% confidence interval (CI) 1.57-3.76]. After stratification of smoking status, RR for hypertension on kidney cancer was still increased for current smokers (RR 2.80; 95% CI 1.64-4.79). For current smokers, those with systolic blood pressure >/=160 mm Hg had a risk of kidney cancer that was 8.18 (95% CI, 3.13-21.36) times higher than those with a pressure less than 120 mm Hg. When the interaction term was included in the multivariate model, there was no significant synergistic effect of hypertension with current smoking on the risk of death from kidney cancer. CONCLUSION: This study supports the hypothesis that hypertension is an independent risk factor of kidney cancer mortality. SN - 0085-2538 UR - https://www.unboundmedicine.com/medline/citation/15673312/The_effect_of_hypertension_on_the_risk_for_kidney_cancer_in_Korean_men_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0085-2538(15)50499-7 DB - PRIME DP - Unbound Medicine ER -