. 2020 Sep 12;76(2):352–360. doi: 10.1093/gerona/glaa229

Table 3.

Changes in Short Physical Performance Battery (SPPB) by Randomized Maintenance Condition (Phone, Newsletter)

	Baseline Mean (SD)	12 Months Mean (SD)	p	Group p	24 Months Mean (SD)	p	Group p
SPPB total score (0–12)a
Phone	7.9 (2.1)	+0.3 (1.4)	*.001*	.83	+0.14 (1.4)	*.05*	.30
Newsletter	7.7 (2.1)	+0.3 (1.7)	*.02*		+0.34 (1.7)	*.009*
Gait speed (m/s)a
Phone	0.86 (0.18)	+0.03 (0.12)	*.003*	.72	+0.01 (0.12)	*.05*	.26
Newsletter	0.84 (0.16)	+0.02 (0.12)	*.005*		+0.03 (0.13)	*.005*
5-chair rise (s)^b,c
Phone	11.8 (3.1)	−0.32 (2.2)	.08	.67	−0.44 (2.4)	*.04*	.69
Newsletter	11.8 (2.6)	−0.19 (2.9)	.06		−0.55 (2.0)	*.002*
Grip strength (kg per pound)^a,d
Phone	20.9 (6.7)	+0.6 (3.1)	*.03*	.73	+0.52 (3.3)	*.05*	.18
Newsletter	21.1 (7.0)	+0.5 (3.1)	.06		−0.005 (3.5)	.99

^aHigher score is better for SPPB total, gait speed, and grip strength.

^bLower score is better for 5-chair rise.

^c N = 16 did not have chair-rise data at both 0 and 12 months: 39 at 0 and 24 months.

^d N = 7 did not have grip strength data at both 1 and 12 months: 10 at 0 and 24 months.