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. 2019 Sep 6;11(17):7083–7097. doi: 10.18632/aging.102238

Table 3. Risk for all-cause mortality according to age-corrected RTL quartiles in B12 low, mid-range and high (n=2970, only subjects in whom the measurements of B12 and RTL were complete).

(A) 1st quartile of B12 (n=756)
Age-corrected RTL quartiles Nr. of deceased(%) / alive (%) patients Model 1 HR (95%CI) P Model 2 HR (95%CI) P Model 3 HR (95%CI) P
1st (<0.0140) (LB12ST) (n=193) 75 (39%) / 118 (61%) Ref. Ref. Ref.
2nd - 3rd(0.0141-0.0509) (n=389) 131 (34%) / 258 (66%) 0.84 (0.63-1.12) 0.232 0.78 (0.56-1.08) 0.137 0.77 (0.54-1.09) 0.137
4th (>0.0510) (LB12LT) (n=174) 42 (24%) / 132 (76%) 0.57 (0.39-0.83) 0.004 0.57 (0.37-0.87) 0.009 0.75 (0.48-1.17) 0.211
(B) Mid-range B12 (n=1465)
Age-corrected RTL quartiles Model 1 HR (95%CI) P Model 2 HR (95%CI) P Model 3 HR (95%CI) P
1st (<0.0140) (n=377) 126 (33%) / 251 (67%) Ref. Ref. Ref.
2nd - 3rd(0.0141-0.0509) (n=722) 196 (27%) / 526 (73%) 0.79 (0.63-0.99) 0.037 0.84 (0.65-1.08) 0.169 0.78 (0.60-1.01) 0.061
4th (>0.0510) (n=366) 92 (25%) / 274 (75%) 0.70 (0.54-0.92) 0.011 0.80 (0.59-1.09) 0.156 0.82 (0.60-1.13) 0.223
(C) 4th quartile of B12 (n=749)
Age-corrected RTL quartiles Model 1 HR (95%CI) P Model 2 HR (95%CI) P Model 3 HR (95%CI) P
1st (<0.0140) (HB12ST) (n=169) 70 (41%) / 99 (59%) Ref. Ref. Ref.
2nd - 3rd(0.0141-0.0509) (n=377) 132 (35%) / 245 (65%) 0.83 (0.62-1.11) 0.209 0.86 (0.61-1.20) 0.368 0.87 (0.60-1.24) 0.434
4th (>0.0510) (HB12LT) (n=203) 39 (19%) / 164 (81%) 0.40 (0.27-0.59) <0.001 0.51 (0.33-0.79) 0.003 0.62 (0.39-0.98) 0.040

Model 1: crude model. Model 2: adjusted for IL-6, hsCRP, albumin, total bilirubin, GOT, GPT, GGT, ALP, HCY, vitamin B6 and folate. Model 3: as model 2 plus sex, LDL-C, HDL-C, BMI, blood pressure, diabetes mellitus, smoking, CAD, MI, stroke, PVD, acute infection, creatinine, TSH, ace-inhibitor, lipid lowering therapy, aspirin/other antiplatelet agents, beta blockers, vitamin K antagonist, diuretics, thyroid therapy, vitamin supplementation, Friesinger Score, Gensini. Score. Ref.: reference.

Statistically significant differences are reported in bold.

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