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Table 4 Regression coefficients and intercepts for the relationship between parameters of physical activity and central adiposity, adjusting for age and smoking status, total cohort & by sex (p-value)

From: Physical activity and central adiposity in a cohort of African-American adults

  Intercept β1
Activity Parameter
β2
Age
β3
Sex
β4
Smoking Status
SEE R2
Total (n = 271)
 VAT (cm3)
  Activity Counts (ct/min) 484
(0.001)
−1.1
(0.001)
7.9
(0.02)
56.0
(0.25)
−69.7
(0.14)
348 0.13
  MVPA (min/d) 434
(0.003)
−4.0
(0.001)
7.1
(0.03)
49.4
(0.32)
−65.2
(0.17)
351 0.11
  Vigorous PA (min/d) 311
(0.03)
−15.5
(0.003)
8.7
(0.01)
83.4
(0.09)
−84.4
(0.08)
355 0.09
 SAT (cm3)
  Activity Counts (ct/min) 1701
(0.001)
−2.2
(0.001)
5.8
(0.51)
956
(0.001)
−325
(0.009)
932 0.32
  MVPA (min/d) 1630
(0.001)
−9.1
(0.001)
3.9
(0.66)
928
(0.001)
−311
(0.01)
932 0.32
  Vigorous PA (min/d) 1351
(0.001)
−37.6
(0.007)
7.5
(0.39)
1003
(0.001)
−355
(0.005)
940 0.31
 Waist Circumference (cm)
  Activity Counts (ct/min) 98.8
(0.001)
−0.05
(0.001)
0.28
(0.13)
1.95
(0.47)
−2.89
(0.27)
19.6 0.07
  MVPA (min/d) 97.1
(0.001)
−0.18
(0.001)
0.24
(0.19)
1.51
(0.58)
−2.63
(0.31)
19.7 0.07
  Vigorous PA (min/d) 91.8
(0.001)
−0.83
(0.004)
0.32
(0.09)
2.81
(0.29)
−3.48
(0.18)
19.7 0.6
Women (n = 161)
 VAT (cm3)
  Activity Counts (ct/min) 506
(0.004)
−1.4
(0.001)
9.6
(0.03)
−6.6
(0.92)
355 0.09
  MVPA (min/d) 429
(0.01)
−7.8
(0.001)
9.4
(0.03)
0.23
(0.99)
354 0.09
  Vigorous PA (min/d) 431
(0.01)
−39.6
(0.001)
7.9
(0.07)
−17.0
(0.79)
356 0.08
 SAT (cm3)
  Activity Counts (ct/min) 2645
(0.001)
−2.0
(0.07)
4.8
(0.67)
−257
(0.12)
898 0.04
  MVPA (min/d) 2551
(0.001)
−13.4
(0.02)
5.0
(0.65)
−241
(0.14)
890 0.05
  Vigorous PA (min/d) 2566
(0.001)
−79.8
(0.009)
2.5
(0.82)
−270
(0.09)
888 0.06
 Waist Circumference (cm)
  Activity Counts (ct/min) 99.8
(0.001)
−0.05
(0.04)
0.29
(0.23)
0.35
(0.92)
19.5 0.03
  MVPA (min/d) 97.3
(0.001)
−0.30
(0.01)
0.29
(0.22)
0.67
(0.84)
19.4 0.04
  Vigorous PA (min/d) 97.5
(0.001)
−1.64
(0.01)
0.23
(0.33)
0.03
(0.99)
19.4 0.04
Men (n = 110)
 VAT (cm3)
  Activity Counts (ct/min) 535
(0.01)
−0.88
(0.003)
7.0
(0.17)
−146
(0.03)
339 0.15
  MVPA (min/d) 478
(0.03)
−2.9
(0.01)
6.4
(0.22)
−141
(0.04)
343 0.13
  Vigorous PA (min/d) 295
(0.15)
−10.0
(0.08)
10.0
(0.05)
−168
(0.02)
349 0.10
 SAT (cm3)
  Activity Counts (ct/min) 1717
(0.01)
−2.3
(0.01)
7.1
(0.63)
−410
(0.04)
996 0.11
  MVPA (min/d) 1582
(0.01)
−7.8
(0.02)
5.4
(0.72)
−395
(0.05)
1004 0.10
  Vigorous PA (min/d) 1096
(0.07)
−28.3
(0.09)
15.0
(0.31)
−467
(0.02)
1016 0.08
 Waist Circumference (cm)
  Activity Counts (ct/min) 99.1
(0.001)
−0.04
(0.02)
0.32
(0.28)
−6.8
(0.09)
20.0 0.10
  MVPA (min/d) 96.4
(0.001)
−0.14
(0.04)
0.29
(0.34)
−6.6
(0.10)
20.1 0.09
  Vigorous PA (min/d) 87.9
(0.001)
−0.64
(0.05)
0.47
(0.11)
−7.9
(0.05)
20.2 0.08