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. Author manuscript; available in PMC: 2020 Sep 1.
Published in final edited form as: Diabet Med. 2019 Feb 28;36(9):1149–1157. doi: 10.1111/dme.13878

Table 4.

Associations between demographic, medical and psychosocial variables and diabetes-related outcomes

Sleep disturbance Physical activity Physical HRQoL Global QoL

Variable Estimate (95% CI) Estimate (95% CI) Estimate (95% CI) Estimate (95% CI)

Age –0.01 (–0.03,0.003) 0.10 (0.06,0.14)* –0.07 (–0.11,–0.04)* 0.03 (0.02,0.03)*
Race/Ethnicity
 Black –0.89 (–1.15,–0.63)* –0.82 (–1.53,–0.12)*** –1.09 (–1.73,–0.46)** 0.29 (0.20,0.37)*
 Other –0.85 (–1.26, –0.43)* 0.44 (–0.67,1.54) 1.16 (0.17, 2.16)*** 0.16 (0.03,0.29)***
 Hispanic –0.36 (–0.81,0.09) 1.32 (0.11,2.53)*** –0.23 (–1.32,0.87) 0.38 (0.24,0.52)*
Education –0.10 (–0.15,–0.04)** 0.37 (0.22,0.53)* 0.14 (0.004,0.28)*** –0.03 (–0.05,–0.01)**
Income –0.16 (–0.24,–0.08)* 0.62 (0.40,0.83)* 1.02 (0.83,1.21)* 0.09 (0.07,0.12)*
Married (Y/N) 0.21 (–0.02,0.44) –0.57 (–1.17,0.05) –1.17 (–1.71,–0.63)* 0.05 (–0.02,0.12)
Number comorbidities 0.75 (0.61,0.89)* –1.11 (–1.50,–0.73)* –4.82 (–5.16,–4.48)* –0.09 (–0.14,–0.05)*
Social support –0.03 (–0.05,–0.02)* 0.06 (0.02,0.09)** 0.05 (0.02,0.08)** 0.06 (0.05,0.06)*
Antidepressant use (Y/N) 0.05 (–0.28,0.37) –1.17 (–2.03,–0.30)** –4.88 (–5.79,–3.97)* –0.08 (–0.18,0.02)
Optimism –0.14 (–0.17,–0.10)* 0.12 (0.03,0.20)** 0.23 (0.16,0.31)* 0.11 (0.10,0.13)*
Depressed (Y/N) 2.84 (2.55,3.13)* –0.15 (–0.93,0.63) –0.65 (–1.41,0.11) –2.14 (–2.61,–1.68)*
Antidepressant use * depression status 2.11 (0.41,3.81)***
interaction
Optimism * depression status interaction 0.07 (0.05,0.09)*
R2 0.13 0.03 0.17 0.33

HRQoL, health-related quality of life; QoL, quality of life.

Table provides parameter estimates and CIs obtained from multivariable linear regression models conducted separately for each of the four outcomes of interest. In models where interaction terms were not significant, we removed the interaction terms (cells shown as empty) and report results from the main-effects-only model.

*

P<0.0001

**

P<0.01

***

P<0.05.