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. Author manuscript; available in PMC: 2019 Apr 1.
Published in final edited form as: J Acad Nutr Diet. 2018 Jan 2;118(4):689–704. doi: 10.1016/j.jand.2017.11.001

Table 3.

Baseline to 12-month changes in behavioral, psychosocial and clinical outcomes of 46 older cancer survivors enrolled in a vegetable gardening feasibility triala

Mean (SE) Gardening Intervention Waitlist Control

0M (n=24) 12M (n=22) Within-Arm Difference 0–12M p-value 0M (n=22) 12M (n=20) Within-Arm Difference 0–12M p-value

Health Behaviors
Vegetable & Fruit Intake (EATS)b
 - Servings/day 1.34(0.25) 2.25(0.45) 0.02 1.22(0.17) 1.12(0.21) 0.77

Physical Activity (PA)
Moderate PA (GTLEQ) (min/week) 59.77(20.47) 105.00(32.76) 0.26 22.50(7.18) 52.14(30.64) 0.47
Accelerometer MET hours/weekc 63.18(9.45) 62.82(10.62) 0.42 59.05(10.41) 42.76(11.87) 0.50

Anthropometric Measures

Weight (kg) 77.70(3.58) 75.04(3.45) 0.13 78.36(3.82) 80.95(4.59) 0.55

BMI (kg/m2) 28.53(1.04) 27.82(1.19) 0.17 27.99(0.97) 28.49(1.18) 0.57

Waist Circumference (cm) 92.92(2.86) 95.22(2.67) <0.01 91.89(3.08) 99.85(3.79) <0.01

Physical Performance Measuresd

2-Minute Step Test (steps) 72.08(4.76) 93.61(4.08) <0.01 74.38(6.24) 88.42(8.07) 0.06

Timed 8-foot Walk (seconds) 3.55(0.28) 2.54(0.16) 0.04 3.68(0.30) 3.07(0.37) 0.01

8-foot Get-Up & Go (seconds) 8.19(0.32) 6.92(0.41) 0.003 8.49(0.52) 6.87(0.60) 0.03

30-second Chair Stand (number of rises) 12.46(0.57) 13.74(0.77) 0.19 14.14(1.19) 13.94(1.23) 0.66

Chair Sit & Reach (inches) 0.87(0.52) 0.84(0.82) 0.95 −1.26(0.94) −0.81(0.95) 0.98

Back Scratch (inches) −1.49(1.21) −2.80(0.97) 0.37 −3.28(1.25) −3.40(1.36) 0.89

Arm Curl (number of curls) 18.00(0.84) 18.40(1.05) 0.42 17.38(1.13) 20.11(1.55) 0.08

Hand Grip Strength (kg) 25.98(2.13) 25.20(1.83) 0.63 26.00(1.87) 27.65(2.26) 0.21

Balance Testing (seconds) 5.58(0.25) 5.95(0.05) 0.15 5.28(0.30) 5.42(0.33) 0.16

Biomarkers

Salivary Cortisol (μg/dL) 0.64(0.32) 0.04(0.02) 0.21 0.41(0.18) 0.24(0.20) 0.82

Fingernail Cortisol (ng/g)f 0.069(0.025) 0.062(0.051) 0.41 0.102(0.054) 0.102(0.065) 0.96

Toenail Cortisol (ng/g)f 0.022(0.073) 0.015(0.007) 0.39 0.040(0.060) 0.149(0.065) 0.64

Telomerase 0.014(0.007) 0.001(0.001) 0.05 0.014(0.006) 0.012(0.007) 0.81

Interleukin (IL)-6 (pg/mL) 1.77(0.52) 1.12(0.10) 0.24 1.59(0.31) 1.46(0.23) 0.52

Psychosocial Measurese

Perceived Stress 13.14(1.33) 13.67(1.52) 0.80 11.37(1.91) 11.46(1.90) 0.39

Reassurance of Worth* 12.95(0.36) 13.44(0.40) 0.18 13.53(0.48) 13.08(0.59) 0.07

Quality of Life (SF-36)12
Physical Summary Score * 72.45(2.73) 66.14(3.91) 0.29 67.69(3.07) 74.67(3.76) 0.07
 - Physical functioning 73.48(3.45) 75.00(5.00) 0.36 72.86(4.09) 77.65(3.84) 0.31
 - Physical role limitations ** 71.74(4.34) 63.99(6.91) 0.22 64.58(5.07) 79.41(5.56) 0.01
 - Pain ** 76.30(3.80) 64.40(5.34) 0.02 66.43(4.95) 77.50(5.28) 0.05
 - General Health 68.26(3.15) 66.14(3.92) 0.89 66.90(4.02) 64.12(4.91) 0.19
Mental Health Score* 75.46(2.86) 74.01(4.76) 0.66 68.80(4.42) 75.95(4.00) 0.01
 - Emotional well-being 76.74(3.09) 80.00(3.61) 0.53 74.52(4.85) 76.47(5.40) 0.35
 - Emotional role limitations 81.88(4.37) 79.76(5.99) 0.84 76.59(5.65) 87.25(4.35) 0.03
 - Vitality* 58.42(2.80) 55.95(4.85) 0.46 51.49(3.73) 58.46(3.90) 0.02
 - Social functioning 84.78(3.24) 80.36(6.49) 0.44 72.62(6.08) 81.62(5.04) 0.07
a

Measures described in Methods and Table 1.

b

p<0.06;

c

MET-hours Metabolic Equivalent of Task (MET) is a physiological measure expressing the energy cost of physical activities, as compared to the reference metabolic rate of 3.5 ml O2·kg−1·min−1, (estimated oxygen consumption at rest). Higher levels indicate more physical activity.

d

For physical performance measures, higher values are favorable for the 2-minute step test, 30-second chair stand, arm curl, hand grip strength and balance testing, for all other measures lower values are considered more favorable.

e

For psychosocial measures, higher values are favorable for reassuance of worth (maximal score=16; minimal score=4) and the SF-36 (maximal score=100; minimal score=0), and lower values are favorable for perceived stress (maximal score=16; minimal score=0)

f

l nmol/g (0.3625 ng/g)

*

Between-arm difference of p<0.05;

**

Between-arm difference of p<0.01