. Author manuscript; available in PMC: 2013 Jul 1.

Published in final edited form as: J Nutr Health Aging. 2013 Jan;17(1):91–95. doi: 10.1007/s12603-012-0073-5

Table 2.

Differences in Physical Function between 2 and 12 Months Following Hip Fracture by Tertile of BMI and Weight Change

	LEGS^a				Walking Speed^b				Grip Strength^c
	2m	12m	Change	p	2m	12m	Change	p	2m	12m	Change	p
BMI^d	n=67				n=69				n=97
				0.383^f				0.466^f				0.307^f
Low	16.75	23.41	6.66	0.784	0.31	0.43	0.12	0.476	15.99	14.11	−1.88	0.560
Med	18.75	26.11	7.36	-	0.31	0.40	0.09		17.85	16.77	−1.08	-
High	19.21	24.62	5.41	0.334	0.29	0.46	0.17	0.072	17.23	17.67	0.44	0.275

Weight Change^e	n=18				n=21				n=34
				0.921^f				0.236^f				0.498^f

Low	20.83	27.09	6.26	0.787	0.28	0.47	0.19	0.991	16.13	13.09g	−3.04	0.478
Med	23.34	30.63	7.29	-	0.38	0.57	0.19		20.70	20.09	−0.61	-
High	21.82	27.05	5.23	0.582	0.32	0.46	0.14	0.637	18.71	16.50	−2.21	0.622

^a.

BMI models adjusted for LEADLs, and number of post operative complications; weight change models adjusted for BMI, ASA score, LEADLs, and complications;

^b.

BMI models adjusted for age, comorbidities, length of stay, MMSE score and LEADLs; weight change models adjusted for BMI, age, comorbidities and LEADLs;

^c.

BMI models adjusted for age, smoking status, MMSE score, LEADLs, and complications; weight change models adjusted for BMI and MMSE score;

^d.

Low tertile (14.8, 20.5 kg/m²), Med tertile (20.5, 24.0 kg/m²), High tertile (24.6, 33.2 kg/m²);

^e.

Low tertile (−10.4, −4.8%); Med tertile (−4.3, −0.4%), High tertile (−0.3, 4.8%);

^f.

The p value representing the statistical test that differences between all three trajectories=0. All other p values represent the difference between low and medium or high and medium tertile in the change in function between 2 and 12 months;

^g.

Time specific difference is significantly different from medium tertile (p<0.05)