TY - JOUR
T1 - Vitamin D Deficiency at Diagnosis Increases All-Cause and Prostate Cancer-specific Mortality in Jamaican Men
AU - McGrowder, Donovan
AU - Tulloch-Reid, Marshall K.
AU - Coard, Kathleen C.M.
AU - McCaw-Binns, Afette M.
AU - Ferguson, Trevor S.
AU - Aiken, William
AU - Harrison, Leroy
AU - Anderson, Simon G.
AU - Jackson, Maria D.
N1 - Funding Information:
The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This work was supported by the Research Awards for Cancer in the Caribbean, a collaborative small grants program administered by Caribbean Public Health Agency (CARPHA) utilizing funds from the U.S. National Cancer Institute (NCI).
Publisher Copyright:
© The Author(s) 2022.
PY - 2022/12/1
Y1 - 2022/12/1
N2 - Background: 25 hydroxyvitamin D [25(OH)D] and serum calcium have been associated with incident prostate cancer (PCa). However, there is limited data on whether these metabolites predict survival in men of African descent, a population disproportionately affected by PCa. We studied the relationship of 25(OH)D at PCa diagnosis with all-cause and cancer-specific mortality among Jamaican men and examined whether serum calcium modified any associations. Methods: Serum 25(OH)D from 152 Jamaican men with incident PCa within the Prostate Cancer Risk Evaluation (PROSCARE) study were re-evaluated approximately 11 years after enrollment. 25(OH)D analyses were stratified using the using Holick criteria. PCa-specific and all-cause mortality were examined in Kaplan–Meier survival curves and Cox regression models adjusted for age, body mass index (BMI), smoking and Gleason score. Restricted cubic splines evaluated nonlinear associations. Serum calcium was assessed as an effect modifier of the association between 25(OH)D and mortality. Results: Of cases with available 25(OH)D, 64 men with PCa survived, 38 deaths were PCa specific and 36 died of other causes. At baseline, 9.9% of cases were vitamin D deficient and 61.2% were vitamin D sufficient. Compared to 25(OH)D sufficient men, those with 25(OH)D <20.0 ng/mL concentrations were associated with higher PCa-specific mortality (adjusted HR, 4.95; 95% CI, 1.68, 14.63, P =.004) and all-cause mortality (adjusted HR, 2.40; 95%CI, 1.33, 4. 32, P =.003). Serum calcium was not associated with survival and did not modify any associations with 25(OH)D. Conclusions: 25(OH)D deficiency at PCa diagnosis predicted decreased survival for overall and PCa-specific cancer in Caribbean men of African ancestry.
AB - Background: 25 hydroxyvitamin D [25(OH)D] and serum calcium have been associated with incident prostate cancer (PCa). However, there is limited data on whether these metabolites predict survival in men of African descent, a population disproportionately affected by PCa. We studied the relationship of 25(OH)D at PCa diagnosis with all-cause and cancer-specific mortality among Jamaican men and examined whether serum calcium modified any associations. Methods: Serum 25(OH)D from 152 Jamaican men with incident PCa within the Prostate Cancer Risk Evaluation (PROSCARE) study were re-evaluated approximately 11 years after enrollment. 25(OH)D analyses were stratified using the using Holick criteria. PCa-specific and all-cause mortality were examined in Kaplan–Meier survival curves and Cox regression models adjusted for age, body mass index (BMI), smoking and Gleason score. Restricted cubic splines evaluated nonlinear associations. Serum calcium was assessed as an effect modifier of the association between 25(OH)D and mortality. Results: Of cases with available 25(OH)D, 64 men with PCa survived, 38 deaths were PCa specific and 36 died of other causes. At baseline, 9.9% of cases were vitamin D deficient and 61.2% were vitamin D sufficient. Compared to 25(OH)D sufficient men, those with 25(OH)D <20.0 ng/mL concentrations were associated with higher PCa-specific mortality (adjusted HR, 4.95; 95% CI, 1.68, 14.63, P =.004) and all-cause mortality (adjusted HR, 2.40; 95%CI, 1.33, 4. 32, P =.003). Serum calcium was not associated with survival and did not modify any associations with 25(OH)D. Conclusions: 25(OH)D deficiency at PCa diagnosis predicted decreased survival for overall and PCa-specific cancer in Caribbean men of African ancestry.
KW - African descent
KW - prostate cancer mortality
KW - serum calcium
KW - serum vitamin D
KW - Prostatic Neoplasms
KW - Humans
KW - Male
KW - Jamaica/epidemiology
KW - Prostate
KW - Vitamin D/metabolism
KW - Vitamin D Deficiency/complications
U2 - 10.1177/10732748221131225
DO - 10.1177/10732748221131225
M3 - Article
C2 - 36180132
AN - SCOPUS:85139216754
SN - 1073-2748
VL - 29
SP - 1
EP - 11
JO - Cancer Control
JF - Cancer Control
ER -
