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Table 6 Multivariable Regression Analysis of Follow-up Primary Outcome Measures (n=2182) – Using Charlson Co-Morbidity Index as a Co-Variate

From: The impact of waist circumference on function and physical activity in older adults: longitudinal observational data from the osteoarthritis initiative

  

Waist

Circumference

Quartile

 
  

Low WC

25-50% WC

50-75% WC

75%+

Short-Form 12 Score

     

Overall Score

OA +

97.3 [93.4-101.2]

100.9 [99.5-102.2]

99.1 [97.8-100.4]

98.9 [97.6-100.2]

 

Δ

---

3.53

1.74

1.60

 

OA -

104.1 [102.7-105.4]

103.3 [101.7-104.8]

102.7 [101.1-104.3]

101.7 [99.8-103.6]

 

Δ

---

-0.78

-1.35

-2.4 (p=0.03)

Physical

OA +

45.4 [43.6-47.2]

45.6 [44.5-46.6]

44.1 [43.0-45.2]

44.0 [42.9-45.0]

 

Δ

---

-0.29

-0.85

-1.74

 

OA -

49.2 [48.0]

48.9 [47.6-50.2]

48.3 [46.9-49.7]

47.4 [46.0-48.9]

 

Δ

--

0.16

-1.32

-1.41

Mental

OA +

54.1 [52.7-55.4]

55.3 [54.3-56.2]

54.8 [53.9-55.8]

54.9 [53.9-55.8]

 

Δ

---

1.19

0.77

0.80

 

OA -

54.9 [54.0-55.9]

54.5 [53.6-55.5]

54.2 [53.1-55.2]

53.8 [52.5-55.1]

 

Δ

----

-0.39

-0.77

-1.15

Physical Activity Scale for Elderly

OA +

124.7 [116.6-132.8]

120.7 [114.4-127.0]

126.7 [119.0-132.3]

109.2 [101.9-116.5]

 

Δ

--

-3.95

1.99

-15.5 (p=0.004)

 

OA -

132.0 [126.6-140.4]

133.4 [123.4-143.5]

128.3 [117.1-139.4]

112.7 [102.9-122.5]

 

Δ

--

1.42

-3.74

-19.3 (p=0.003)

Late-Life Disability Index

     

Frequency

OA +

55.1 [54.2-56.0]

55.0 [54.3-55.7]

54.7 [54.1-55.4]

54.6 [53.9-55.4]

 

Δ

--

-0.10

-0.38

-0.47

 

OA -

56.2 [55.4-57.1]

55.0 [54.1-55.9]

56.3 [55.1-57.4]

55.8 [54.6-57.0]

 

Δ

--

-1.22 (p=0.05)

0.02

-0.41

Limitation

OA +

80.7 [78.4-83.0]

81.3 [79.5-83.1]

79.3 [77.6-81.0]

78.2 [76.4-79.9]

 

Δ

---

0.60

-1.38

-2.55

 

OA -

84.0 [82.0-86.0]

83.9 [81.5-86.2]

80.5 [77.8-83.2]

79.9 [77.1-82.7]

 

Δ

---

-0.12

-3.49 (p=0.04)

-4.10 (p=0.02)

Gait Speed

OA +

1.23 [1.17-1.29]

1.22 [1.19-1.24]

1.22 [1.20-1.24]

1.17 [1.15-1.19]

 

Δ

 

-0.02

-0.01

-0.06 (p=0.046)

 

OA -

1.29 [1.27-1.31]

1.27 [1.24-1.30]

1.26 [1.23-1.29

1.21 [1.18-1.24]

 

Δ

---

-0.02

-0.03

-0.08*

  1. Δ – represents the adjusted difference between each tertile of Waist Circumference (WC) and low WC. Models were adjusted for age, sex, race, education, Charlson co-morbidity index, smoking status, and cohort type. Baseline scores were included where available.
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Nutrition Journal

ISSN: 1475-2891

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