TY - JOUR
T1 - Secondhand smoke exposure is associated with proteinuria in children with chronic kidney disease
AU - Omoloja, Abiodun
AU - Jerry-Fluker, Judith
AU - Ng, Derek K.
AU - Abraham, Alison G.
AU - Furth, Susan
AU - Warady, Bradley A.
AU - Mitsnefes, Mark
N1 - Funding Information:
We would like to acknowledge the assistance of Adrienne Stolfi in the conceptualization of the project. CKiD is funded by the NIDDK, with additional funding from NINDS, NICHD and NHLBI (U01-DK-66143, U01-DK-66174, and U01-DK-66116). The Clinical Pharmacology Laboratory at the University of California San Francisco receives support from the NIH (S10 RR026437 and P30 DA012393). Funding for urine cotinine and creatinine evaluation was provided by the Research Foundation of Dayton Children’s Medical Center, Dayton, Ohio, USA.
PY - 2013/8
Y1 - 2013/8
N2 - Background: In adults with chronic kidney disease (CKD), cigarette smoking is associated with an increased risk for CKD progression and transplant failure. In children, secondhand smoke (SHS) exposure has been associated with elevated blood pressure. There are no studies on the prevalence and effect of SHS exposure in CKD. Methods: Subjects were enrolled in the Chronic Kidney Disease in Children (CKiD) Study, an observational cohort of 366 children aged 1 to 16 years with CKD. Secondhand smoke exposure was obtained via questionnaire. SHS exposure was also determined based on urine cotinine (Ucot) measurements (1 ng/mL ≤ Ucot < 75 ng/mL). The cross-sectional association of SHS exposure with proteinuria was assessed. Results: Using Ucot, 22 % of subjects were exposed to SHS. SHS exposure was significantly associated with lower maternal education and African American race, and a greater prevalence of nephrotic range proteinuria and left ventricular hypertrophy. In a multivariate model (including sex, age, race, maternal education, income level, private insurance status, abnormal birth history and CKD diagnosis), the prevalence odds of nephrotic range proteinuria was 2.64, (95 % confidence interval 1.08, 6.42) higher in children exposed to SHS compared to those unexposed. Conclusions: In our cohort of children with CKD, SHS exposure was common (22 %) and independently associated with nephrotic range proteinuria. Exposure to SHS may be an important factor to consider in CKD progression.
AB - Background: In adults with chronic kidney disease (CKD), cigarette smoking is associated with an increased risk for CKD progression and transplant failure. In children, secondhand smoke (SHS) exposure has been associated with elevated blood pressure. There are no studies on the prevalence and effect of SHS exposure in CKD. Methods: Subjects were enrolled in the Chronic Kidney Disease in Children (CKiD) Study, an observational cohort of 366 children aged 1 to 16 years with CKD. Secondhand smoke exposure was obtained via questionnaire. SHS exposure was also determined based on urine cotinine (Ucot) measurements (1 ng/mL ≤ Ucot < 75 ng/mL). The cross-sectional association of SHS exposure with proteinuria was assessed. Results: Using Ucot, 22 % of subjects were exposed to SHS. SHS exposure was significantly associated with lower maternal education and African American race, and a greater prevalence of nephrotic range proteinuria and left ventricular hypertrophy. In a multivariate model (including sex, age, race, maternal education, income level, private insurance status, abnormal birth history and CKD diagnosis), the prevalence odds of nephrotic range proteinuria was 2.64, (95 % confidence interval 1.08, 6.42) higher in children exposed to SHS compared to those unexposed. Conclusions: In our cohort of children with CKD, SHS exposure was common (22 %) and independently associated with nephrotic range proteinuria. Exposure to SHS may be an important factor to consider in CKD progression.
KW - Chronic kidney disease progression
KW - Pediatric chronic kidney disease
KW - Proteinuria
KW - Secondhand smoke exposure
KW - Tobacco use
KW - Urine cotinine
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U2 - 10.1007/s00467-013-2456-1
DO - 10.1007/s00467-013-2456-1
M3 - Article
C2 - 23584848
AN - SCOPUS:84879927342
VL - 28
SP - 1243
EP - 1251
JO - Pediatric Nephrology
JF - Pediatric Nephrology
SN - 0931-041X
IS - 8
ER -