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Table 1 Phenotypic characteristics of Octo/Nonagenarian subjects from the Belfast Elderly Longitudinal Free-Living Ageing STudy (BELFAST) categorised by KIR A and KIR B Haplotypes with comparisions by Student’s t-test or Mann Whitney U test

From: Killer Immunoglobulin-like Receptors (KIR) haplogroups A and B track with Natural Killer Cells and Cytokine Profile in Aged Subjects: Observations from Octo/Nonagenarians in the Belfast Elderly Longitudinal Free-living Aging STudy (BELFAST)

Variable

KIR A

KIR B

t-test or mwuω

Age yrs

87.1±6.0(21)

89.3±4.1(56)

0.07

Sex

8M/13F

17M/39F

0.59

Weight kg

66.1±13.6(20)

58.6±11.4(53)

0.02*

Waist cm

90.4±15.8(18)

86.2±13.4(53)

0.28

BMI kg/m 2

24.5±4.3(18)

23.5±4.0(53)

0.40

TSF mm

15.4±7.1(17)

12.8±6.3(51)

0.16

FT4 ug/dl

15.2±6.2(19)

15.6±3.6(52)

0.69

Urea umol/l

8.8 [7–11.2](7)

7.7 [4-12](15)

0.38 ω

Glucose umol/l

5.4 [3.7–7.3] (7)

5.7 [4.2–8.9](15)

0.72 ω

Folate ug/l

4.3 [1.2–6.2](7)]

3.8 [2.1–9.1](13)

0.63 ω

Selenium umol/l

0.81±0.18(19)

0.80±0.28(51)

0.83

Zinc umol/l

12.8±1.9(20)

12.4±1.9(55)

0.43

Copper umol/l

20.2±2.6(20)

18.4±3.1(55)

0.02*

  1. BMI body mass index, TSF triceps skin fold thickness, FT4 Free thyroxine index,.
  2. Mean ±Standard Deviation, Subject nos (), Students t-test t-test, *p<0.05 is significant.
  3. Median and range, Subject nos (), Mann Whitney-U mwu ω.