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. Author manuscript; available in PMC: 2021 Feb 7.
Published in final edited form as: PM R. 2020 May 11;13(2):144–152. doi: 10.1002/pmrj.12381

Table 2.

Bivariate association between CPEI quintiles and continuous measurements: BMI, Age and Number of children.

CPEI quintile description Range of CPEI in Quintile 60m BMI (kg/m2)
Mean (95% CI)
BL BMI (kg/m2)
Mean (95% CI)
25yo BMI (kg/m2)
Mean (95% CI)
60m Age
Mean (95% CI)
Reported N of children
Mean (95% CI)
Lowest Quintile Q1 [−7.7 – 12.7] (N=467) 29.9 (29.3 – 30.5) 29.4 (28.8 – 30) 21.9 (21.5– 22.3) 68.9 (68.1 – 69.8) 2.61 (2.43 – 2.78)
2nd Quintile Q2 [12.8 – 16.8] (N=483) 29.6 (29 – 30.2) 29.3 (28.8 – 29.9) 21.9 (21.6 – 22.3) 68.3 (67.5 – 69) 2.51 (2.34 – 2.68)
3rd Quintile Q3 [16.9 – 20.2] (N=460) 30.7 (30 – 31.4) 30.4 (29.8 – 31.1) 22.4 (21.9 – 22.8) 67.3 (66.6 – 68.1) 2.44 (2.25 – 2.62)
4th Quintile Q4 [20.3 – 24.3] (N=475) 31.4 (30.7 – 32.1) 31 (30.3 – 31.6) 22.4 (22 – 22.7) 67.3 (66.6 – 68.1) 2.34 (2.19 – 2.5)
Highest Quintile Q5 [24.4 – 40.2] (N=469) 31.1 (30.4 – 31.8) 30.5 (29.9 – 31.2) 22.7 (22.3 – 23) 66.6 (65.8 – 67.4) 2.27 (2.1 – 2.44)
p-value for linear trend 0.0002 0.0005 0.0004 <.0001 0.0027

Abbreviations: CPEI, center of pressure excursion index; BMI, body mass index