Increase in body weight over a two-year period is associated with an increase in midfoot pressure and foot pain

Table 1 Participant characteristics (values are the means (SD)s unless otherwise indicated)

	Baseline	Follow-up	Mean difference	95% CI	p value
Age	52.6 (8.5)	54.8 (8.5)
Gender, no. women (%)	33 (65)	33 (65)
Height, m	1.69 (0.1)	1.69 (0.1)^a	−0.0	-0.0 to 0.0	0.145
Body mass, kg	80.3 (19.3)	82.3 (20.6)^a	2.0	0.4 to 3.6	0.016
BMI, kg/m²	28.2 (6.9)	28.9 (6.9)^a	0.6	0.1 to 1.2	0.029
MFPDI Functional limitation score	3.2 (4.5)	3.6 (5.1)^a	0.4	−0.8 to 1.6	0.511
MFPDI Pain intensity score	1.9 (2.4)	1.9 (2.4)^a	0.1	−0.5 to 0.6	0.784

Abbreviations: SD standard deviation, kg kilograms, m metres, BMI body mass index, CI confidence interval, MFPDI Manchester Foot Pain and Disability Index
^a p calculated for differences between baseline and follow-up measures analysed with paired samples t-test

ISSN: 1757-1146