Table 2 Larsen scores in each age group and excluding proximal interphalangeal erosions.

Cohort		Age (years)
	All	<50	50–69	⩾70
All, median score (IQR)	4 (0–13)	0 (0–2)	4 (0–13)	11 (5–22)
Excluding those with PIP erosions alone, median score (IQR)	3 (0–10)	0 (0–2)	3 (0–10)	10 (5–17)

IQR, interquartile range; PIP, proximal interphalangeal.