Predictors of Immunosuppressive Regulatory T Lymphocytes in Healthy Women
Table 2
Linear regression analyses of epidemiological predictors of regulatory T-cell (Treg) levels among 75 healthy women at Roswell Park Cancer Institute, Buffalo, NY, USA, 2008-2009.
Variable
Ξ²
value
Demographic variables
β
β
β
1Age (years)
0.02
0.05
0.05
2Education
β0.97
0.005
0.10
1BMI (kg/mm2)
0.01
0.78
0.001
BMI (kg/mm2)
β
β
β
β18β24
Reference
β
β
β25β29
1.11
0.004
0.12
β30 or more
0.22
0.52
β
Lifestyle factors
β
β
β
Smoking
0.71
0.02
0.07
3Alcohol intake
0.01
0.19
0.02
Exercise
β
β
β
βNone
Reference
β
0.09
β1-2 days/week
β0.22
0.55
β
β3 or more days/week
β0.94
0.01
β
Reproductive factors
β
β
β
Menopausal status
0.63
0.04
0.05
4Age at first birth
β0.78
0.01
0.10
5Age at menarche
β0.41
0.26
0.02
Oral contraceptives
β0.70
0.03
0.06
HRT
0.84
0.02
0.07
Parity
β0.35
0.39
0.01
Breast feeding
β0.50
0.10
0.04
Family history
0.32
0.46
0.01
Medications
β
β
β
6Multivitamins
β0.25
0.52
0.01
7Ibuprofen
β0.82
0.01
0.08
7Osteoporosis medication
1.18
0.003
0.11
7Acetaminophen
β0.54
0.19
0.02
7Aspirin
0.58
0.11
0.03
7Prednisone
β0.27
0.49
0.01
8Diet
β
β
β
Vegetable
β0.02
0.19
0.02
Fruits
β0.02
0.28
0.02
HRT: hormone replacement therapy.
1Continuous variable.
2Education level categorized as less than or equal to high school and more than high school.
3Frequency of drinking beer/wine/liquor per month in the past one year.
4Age at first birth categorized as 24 years (reference) and >24 years.
5Age at menarche categorized as 13 years and 14 years.
6Current intake of multivitamins categorized as none = 0 and 1 = yes.
7Intake in the past: 0 = Never, 1 = yes, occasionally or at least once a week for one full year.
8Frequency per week. Exercise was defined as days per week of at least 20βmin of exercise currently.