TABLE 4.

Loss of JSW according to quartiles of dietary pattern scores¹

		Model 12, 3			Model 23,4
n	Q	ΔJSW, mm	P- value	P-trend	ΔJSW, mm	P- value	P-trend
Western5
689	Q1	0.39 ± 0.03	Ref	0.12	0.40 ± 0.03	Ref	0.42
689	Q2	0.40 ± 0.03	0.92		0.39 ± 0.03	0.74
690	Q3	0.43 ± 0.03	0.18		0.42 ± 0.03	0.51
689	Q4	0.42 ± 0.03	0.29		0.42 ± 0.03	0.53
Prudent5
689	Q1	0.46 ± 0.03	Ref	<0.01	0.45 ± 0.03	Ref	<0.01
689	Q2	0.42 ± 0.03	0.14		0.42 ± 0.03	0.25
690	Q3	0.39 ± 0.03	0.01		0.39 ± 0.03	0.03
689	Q4	0.38 ± 0.03	<0.01		0.38 ± 0.03	<0.01
Western − prudent5
689	Q1	0.39 ± 0.03	Ref	<0.01	0.39 ± 0.03	Ref	0.04
689	Q2	0.38 ± 0.03	0.74		0.38 ± 0.03	0.54
690	Q3	0.43 ± 0.03	0.08		0.43 ± 0.03	0.15
689	Q4	0.44 ± 0.03	0.04		0.43 ± 0.03	0.12

¹Values are means ± SEs unless otherwise indicated. JSW, joint space width; KL, Kellgren–Lawrence; NSAID, nonsteroidal anti-inflammatory drug; PASE, Physical Activity Scale for the Elderly; Q, quartile; Ref, reference.

²Adjusted for age, sex, race (African American, white, other), baseline KL grade 1–3, injury/surgery (yes, no), NSAID use (yes, no), changes of rim and beam angle, baseline JSW (mm, continuous), baseline PASE score and total energy intake (kcal/d, continuous) using a linear mixed model.

³Additional adjustment for income, education, smoking, and alcohol did not significantly alter results.

⁴Additionally adjusted for BMI (<25.0, 25.0–29.9, and ≥30 kg/m²) and weight change from baseline (continuous).

⁵Western pattern: Q1 is more healthy, Q4 is less healthy; Prudent pattern: Q1 is less healthy, Q4 is more healthy; Western − prudent pattern: Q1 is more healthy, Q4 is less healthy.