Table 2.

Anthropometric and patient-reported outcomes across intervention time points

	MedDiet (n = 20)					HEG (n = 20)					Mean change between groups p-value
	Baseline	6 wk	12 wk	Mean Change pre-post (95% CI)	Within group p-value	Baseline	6 wk	12 wk	Mean Change pre-post (95% CI)	Within group p-value
Wt (kg)	71.0 ± 11.3	70.2 ± 11.6	70.4 ± 11.5	-0.6 ± 0.7	< 0.001	73.1 ± 17.7	72.0 ± 17.3	72.2 ± 17.3	-0.9 ± 1.2	< 0.001	0.472
BMI (kg/m2)	26.1 ± 5.5	25.8 ± 5.5	25.9 ± 5.5	-0.2 ± 0.3	< 0.001	27.2 ± 4.9	26.8 ± 4.7	26.9 ± 4.7	-0.3 ± 0.4	< 0.001	0.461
Physical function HAQ-DI score (0–3)	0.9 ± 0.5	0.7 ± 0.4	0.5 ± 0.4	-0.3 ± 0.3	< 0.001	1.4 ± 0.7 a	1.2 ± 0.7	1.0 ± 0.6	-0.4 ± 0.4	< 0.001	0.586
Quality of life RAQoL score (0–30)	10.1 ± 7.5	6.9 ± 5.9	4.0 ± 4.7	-6.1 ± 6.1	< 0.001	11.25 ± 7.2	9.35 ± 6.5	7.9 ± 6.4	-3.4 ± 5.9	0.048	0.165
HAQ-DI pain (0-100) *	40.3 ± 27.5	22.1 ± 28.4	17.4 ± 22.2	-22.9 ± 21.4	< 0.001	45.0 ± 24.3	29.7 ± 27.9	30.3 ± 30.1	-14.7 ± 33.1	0.028	0.363
HAQ-DI General health (0-100) *	45.0 ± 32.3	27.8 ± 32.9	29.0 ± 34.9	-16.0 ± 33.9	< 0.001	50.9 ± 22.6 a	35.3 ± 31.4	28.7 ± 24.1	-22.2 ± 24.8	0.002	0.513
Physical activity YPAS score (0-142)	56.7 ± 28.6	66.9 ± 27.3	70.6 ± 33.5	13.9 ± 21.5	0.009	57.2 ± 32.0	53.0 ± 21.3	54.3 ± 23.8	-2.9 ± 25.6	0.721	0.031

Note * indicates non-parametric data, statistical analysis conducted using non-parametric tests. Within-group values were compared with paired t test. Differences between groups were analysed by Student’s t test for independent samples. Abbreviations: MedDiet: Mediterranean Diet, HEG: Healthy Eating Guidelines Wt: weight; BMI: Body mass index; HAQ-DI: Health Assessment Questionnaire-Disability Index; RAQoL: Rheumatoid Arthritis Quality of Life; YPAS: Yale Physical Activity Survey. Results in bold indicate p < 0.05

Lower HAQ-DI score indicates better physical function, lower pain score indicates less pain, lower health status score indicates better health status, lower RAQoL score indicates better quality of life