Table 3.

Participants’ pain levels throughout follow-up, by gender and age group.

Pain	Gender		Age
	Females	Males	<67	>67
	Mean (SD)	Mean (SD)	Mean (SD)	Mean (SD)
Prior	9.2 (1.5)	8.8 (1.5)	8.9 (1.6)	9.0 (1.4)
1 week	2.7 (2.4)	3.1 (2.2)	2.9 (2.2)	3.0 (2.4)
1 month	3.3 (2.5)	3.0 (1.9)	3.5 (2.1)	2.7 (2.0)
3 months	3.6 (2.8)	3.6 (2.0)	4.2 (2.2)	3.2 (2.4)
6 months	4.0 (3.0)	3.6 (2.7)	4.8 (3.2)	2.9 (1.9)
12 months	2.3 (1.5)	4.9 (3.1)	4.9 (3.1)	2.3 (1.5)
Changes:
From prior to 1 week	−6.5 (3.2)	−5.8 (2.4)	−6.1 (2.7)	−6.0 (2.8)
From 1 week to 1 month	0.5 (1.9)	−0.1 (2.5)	0.7 (2.5)	−0.3 (2.0)
From 1 month to 3 months	0.4 (1.5)	0.5 (1.3)	0.3 (1.5)	0.5 (1.2)
From 3 to 6 months	0.3 (1.8)	0.7 (1.6)	0.9 (1.7)	0.3 (1.0)
From 6 to 12 months	0.0 (0.0)	0.6 (1.1)	0.6 (1.1)	0.0 (0.0)
From prior to 12 months	−7.8 (1.5)	−4.7 (2.98)	−4.7 (2.9)	−7.8 (1.5)