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. 2016 Feb;7(1):3–11. doi: 10.1177/2042018815616549

Table 5.

Unstandardized and standardized coefficients for the direct, indirect and total effects for the theoretical path model.

Causal variable BMI
Logged HOMA-IR
Unstd. (SE) Std. Unstd. (SE) Std.
Sleep duration
 Direct effect 0.000 (0.004) 0.005 0.000 (0.000) 0.000
 Indirect effect 0.000 (0.000) 0.002
 Total effect 0.000 (0.000) 0.002
Night awakenings
 Direct effect 0.911* (0.267) 0.249 −0.025 (0.023) −0.064
 Indirect effect 0.044* (0.012) 0.114
 Total effect 0.020 (0.027) 0.050
Nap duration
 Direct effect 0.016 (0.009) 0.105 0.001 (0.001) 0.040
 Indirect effect 0.001 (0.000) 0.048
 Total effect 0.001 (0.000) 0.088
BMI
 Direct effect 0.049* (0.007) 0.458

Adjusted for age, gender, number of diabetes mellitus medications, physical activity level, and self-reported sleep problems.

BMI, body mass index; HOMA-IR, homeostatic model assessment – insulin resistance; SE, standard error; Std., standardized coefficient; Unstd., unstandardized coefficient.

*

p < 0.05.