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. Author manuscript; available in PMC: 2017 Oct 24.
Published in final edited form as: Diabetes Educ. 2016 Mar 8;42(3):299–314. doi: 10.1177/0145721716636961

Table 3.

Impact of family-based diabetes intervention on change in family member outcomes over time

Time-Point1 Overall2

P
Pairwise comparison
P for I vs. C3
Pre-Intervention (1) Post-Intervention (2) 1-Month
Follow-up (3)
6-Month
Follow-up (4)
I C I C I C I C 2 vs. 1 3 vs. 1 4 vs. 1
SKILLD diabetes knowledge
(KR-20=.73)
2.0
(1.5, 2.6)
3.0
(2.4, 3.6)
7.4
(6.6, 8.2)
5.4
(4.6, 6.2)
6.5
(5.8, 7.2)
5.3
(4.5, 6.0)
6.1
(5.4, 6.7)
5.5
(4.7, 6.3)
<0.001 <0.001 0.027 0.283
IPAQ
MET-min/wk.
5213.8
(3442.5, 6985.1)
5696.4
(3715.4, 7677.5)
5501.1
(3785.1, 7217.0)
6103.3
(4215.6, 7991.0)
5615.0
(3811.1, 7418.9)
6264.6
(4275.8, 8253.4)
6185.9
(3355.7, 9016.1)
7073.1
(3848.2, 10298.0)
0.809 0.377 0.462 0.981
BRFSS fruits & veggies consumption 2.6
(2.5, 2.7)
2.6
(2.5, 2.8)
2.8
(2.7, 2.9)
2.7
(2.6, 2.9)
2.8
(2.7, 2.9)
2.7
(2.6, 2.9)
2.8
(2.6, 2.9)
2.8
(2.6, 2.9)
0.709 0.463 0.489 0.921
A1C (%) 5.9
(5.5, 6.3)
6.0
(5.6, 6.5)
5.9
(5.6, 6.1)
5.9
(5.6, 6.2)
5.7
(5.5, 6.0)
6.0
(5.7, 6.3)
6.0
(5.7, 6.3)
5.7
(5.3, 6.0)
0.002 0.805 0.218 0.153
A1C
(mmol/mol)
41
(37, 45)
42
(38, 48)
41
(38, 43)
41
(38, 44)
39
(37, 42)
42
(39, 45)
42
(39, 45)
39
(34, 42)
0.002 0.805 0.218 0.153
SF-12v2 PCS physical HRQOL
c=.82)
51.9
(50.6, 53.3)
52.8
(51.2, 54.3)
52.7
(51.3, 54.1)
52.0
(50.4, 53.5)
53.0
(51.5, 54.5)
51.6
(50.0, 53.3)
54.5
(52.4, 56.6)
50.1
(47.6, 52.5)
0.001 0.273 0.144 0.005
*

Note. Results are based on mixed-effect models for outcome with IPW propensity score adjustment (except ranks of IPAQ tested).

1

Numbers presented are model-based least-squares means using median time from pre-intervention, (95% CI for means). Median time from pre-intervention to post-intervention, 1-month follow-up, and 6-month follow-up were 2.5 months, 3.5 months, and 8.8 months, respectively;

2

P = Overall p-value is for omnibus test (group by time interaction) for any differences in change over time between groups;

3

P-value from testing difference in least-square mean estimates in post-hoc pairwise comparisons with baseline/pre-intervention.