TY - JOUR
T1 - A cross-sectional study of vitamin intake in postoperative non-small cell lung cancer patients
AU - Jatoi, Aminah
AU - Daly, Benedict D.T.
AU - Kramer, Gertrude
AU - Mason, Joel B.
PY - 1998/8
Y1 - 1998/8
N2 - Background and Objectives: This cross-sectional study of postoperative non-small cell lung cancer (NSCLC) patients examined possible effects of vitamin intake and folate status on disease-free survival. Methods: Supplemental vitamin usage, dietary vitamin intake (Willett Food Frequency Questionnaire), red blood cell (RBC) folate, and serum folate concentrations were assessed in patients with a history of NSCLC. Exclusion criteria included factors that alter folate status or that are associated with altered nutritional habits: (1) evidence of cancer on history, physical, or chest radiograph; (2) tobacco, alcohol ingestion (>2 drinks/day), or cancer treatment within 3 months; (3) use of folate antagonists; and (4) age <60 years. Results: 36 subjects were evaluated. The median disease-free censored survival was 24 months (range 4-41). Nineteen of 36 patients (53%) reported vitamin supplementation. Vitamin users had a longer median censored survival compared with nonusers (41 months versus 11 months; P = 0.002). With adjustment for cancer stage, the association between RBC folate and censored survival (r 0.35; P = 0.055) and between serum folate and censored survival (r = 0.32; P = 0.083) approached statistical significance. Conclusions: NSCLC patients who took vitamin supplements were more likely to be long-term survivors in the patients studied; a similar trend toward long-term survival was seen among patients with higher circulating folate concentrations.
AB - Background and Objectives: This cross-sectional study of postoperative non-small cell lung cancer (NSCLC) patients examined possible effects of vitamin intake and folate status on disease-free survival. Methods: Supplemental vitamin usage, dietary vitamin intake (Willett Food Frequency Questionnaire), red blood cell (RBC) folate, and serum folate concentrations were assessed in patients with a history of NSCLC. Exclusion criteria included factors that alter folate status or that are associated with altered nutritional habits: (1) evidence of cancer on history, physical, or chest radiograph; (2) tobacco, alcohol ingestion (>2 drinks/day), or cancer treatment within 3 months; (3) use of folate antagonists; and (4) age <60 years. Results: 36 subjects were evaluated. The median disease-free censored survival was 24 months (range 4-41). Nineteen of 36 patients (53%) reported vitamin supplementation. Vitamin users had a longer median censored survival compared with nonusers (41 months versus 11 months; P = 0.002). With adjustment for cancer stage, the association between RBC folate and censored survival (r 0.35; P = 0.055) and between serum folate and censored survival (r = 0.32; P = 0.083) approached statistical significance. Conclusions: NSCLC patients who took vitamin supplements were more likely to be long-term survivors in the patients studied; a similar trend toward long-term survival was seen among patients with higher circulating folate concentrations.
KW - Cancer prevention
KW - Folate
KW - Non-small cell lung cancer
KW - Nutrition
KW - Vitamin supplementation
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U2 - 10.1002/(SICI)1096-9098(199808)68:4<231::AID-JSO5>3.0.CO;2-5
DO - 10.1002/(SICI)1096-9098(199808)68:4<231::AID-JSO5>3.0.CO;2-5
M3 - Article
C2 - 9721708
AN - SCOPUS:0031843877
SN - 0022-4790
VL - 68
SP - 231
EP - 236
JO - Journal of Surgical Oncology
JF - Journal of Surgical Oncology
IS - 4
ER -