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. 2022 Apr 12;327(14):1344–1355. doi: 10.1001/jama.2022.3391

Table 3. Effects of Home-Based, Walking Exercise Behavior Change Intervention on Other Outcomes at 3-Month or 6-Month Follow-up.

Walking exercise behavior change intervention Usual care Walking exercise behavior change intervention vs usual care
Mean (SD) [No.]a Within-group change, mean (95% CI)b Mean (SD) [No.]a Within-group change, mean (95% CI)b Adjusted between-group difference, mean (95% CI)c P value
Baseline (n = 95) 3-mo follow-up Baseline (n = 95) 3-mo follow-up
Walking Estimated Limitation Calculated by History scored 18.0 (12.6) [94] 29.5 (18.3) [n = 81] 9.7 (5.6 to 13.9) 20.7 (13.9) 20.0 (13.5) [n = 80] −1.0 (−3.8 to 1.7) 10.2 (5.7 to 14.7) <.001
Self-Reported Maximum Walking Distance test, me 199 (241) 500 (1140) [n = 90] 298 (75 to 521) 275 (549) 277 (402) [n = 89] 51 (−40 to 141) 181 (60 to 302) .003
Nottingham Extended Activities of Daily Living scoref 51.3 (15.7) 58.3 (8.4) [n = 81] 0.2 (−0.3 to 0.7) 54.3 (11.0) 56.2 (12.6) [n = 83] −0.8 (−1.5 to −0.0) 2.8 (0.1 to 5.4) .04
Vascular Quality of Life Questionnaire-6 scoreg 13.3 (3.5) 14.8 (3.8) [n = 91] 1.4 (0.7 to 2.0) 13.9 (3.1) 14.6 (3.5) [n = 90] 0.6 (0.1 to 1.2) 0.6 (−0.2 to 1.4) .17
Pain-free walking time, sh 159.0 (77.2) [n = 87] 208.0 (86.4) [n = 65] 52.8 (33.7 to 72.0) 163.0 (83.8) [n = 91] 173.0 (81.4) [n = 68] 22.7 (4.2 to 41.3) 30.3 (5.4 to 55.3) .02
Maximum walking capacity, si 301.5 (93.3) 324.4 (82.6) [n = 74] 10.9 (−7.6 to 29.5) 289.7 (100.0) 308.7 (87.9) [n = 74] 21.7 (1.9 to 41.5) 12.0 (−16.9 to 40.8) .42
Brief Illness Perceptions Questionnaire scorej 45.7 (11.5) 40.4 (11.5) [81] −4.2 (−6.6 to −1.7) 44.0 (10.1) 45.6 (10.7) [n = 82] 1.7 (−0.2 to 3.6) −5.8 (−8.6 to −2.9) <.001
Attitude scorek 14.7 (3.1) 15.7 (2.9) [n = 81] 1.0 (0.2 to 1.7) 14.6 (3.4) 14.5 (4.0) [n = 82] −0.1 (−0.8 to 0.5) 1.1 (0.2 to 2.0) .02
Subjective norms scorek 16.2 (4.9) 17.2 (4.1) [n = 81] 0.9 (−0.1 to 1.8) 15.8 (4.6) 15.6 (4.9) [n = 82] 0.0 (−1.0 to 1.0) 1.3 (0.1 to 2.6) .03
Perceived behavioral control scorek 17.5 (3.7) 17.2 (3.5) [n = 81] −0.5 (−1.4 to 0.4) 17.0 (3.8) 17.3 (3.5) [n = 82] 0.3 (−0.7 to 1.3) −0.3 (−1.3 to 0.8) .60
Intention scorek 19.3 (2.8) 19.5 (2.2) [n = 81] 0.3 (−0.4 to 1.0) 19.0 (2.6) 18.5 (3.8) [n = 82] −0.5 (−1.3 to 0.3) 0.9 (0.0 to 1.9) .048
Action planning scorel 2.5 (1.2) 3.2 (0.9) [n = 81] 0.8 (0.5 to 1.1) 2.3 (1.1) 2.7 (1.1) [n = 82] 0.4 (0.1 to 0.6) 0.5 (0.2 to 0.8) .001
Action control scorel 2.4 (0.9) 3.5 (0.6) [n = 81] 1.1 (0.9 to 1.3) 2.4 (1.0) 2.7 (1.0) [n = 82] 0.3 (0.1 to 0.5) 0.7 (0.5 to 1.0) <.001
International Physical Activity Questionnaire, MET min/wkm 2874 (6387) [n = 94] 3846 (6192) [n = 91] 838 (−500 to 2175) 2615 (5903) 3207 (5035) [n = 90] 424 (−658 to 1506) 532 (−855 to 1919) .45
Exercise Adherence Rating Scale score at 3 mon 13.9 (5.8) 17.3 (5.1) [n = 81] 3.3 (2.0 to 4.7) 13.6 (5.7) 15.3 (5.7) [n = 82] 1.4 (0.0 to 2.7) 2.0 (0.5 to 3.5) .01
Exercise Adherence Rating Scale score at 6 mon 13.9 (5.8) 16.0 (5.4) [n = 70]n 1.7 (0.1 to 3.3) 13.6 (5.7) 14.7 (6.3) [n = 72]n 0.6 (−1.0 to 2.3) 1.2 (−0.7 to 3.1) .21

Abbreviation: MET min/wk, metabolic equivalent of task-minutes/week.

a

See footnote a in Table 2.

b

See footnote b in Table 2.

c

See footnote c in Table 2.

d

See footnote i in Table 1.

e

See footnote j in Table 1.

f

See footnote k in Table 1.

g

See footnote l in Table 1.

h

Represents the time in seconds that participants first experienced pain during 6-minute walk test. Ranges from small number of seconds to 360 seconds; 360 seconds indicates best. A minimal clinically important difference has not been defined.

i

Represents time in seconds that participants stopped walking during 6-minute walk test. Ranges from small number of seconds to 360 seconds; 360 seconds indicates best. A minimal clinically important difference has not been defined.

j

See footnote m in Table 1.

k

See footnote n in Table 1.

l

See footnote o in Table 1.

m

See footnote p in Table 1.

n

Measures participants’ reported adherence to exercise on a 6-item questionnaire (score range, 0-24 [24 indicates best]29; minimal clinically important difference, 5.5 points).30