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. 2020 Mar 19;8(3):e14538. doi: 10.2196/14538

Table 3.

Association of the percentage of sedentary time (ST) accumulated in bouts of different lengths with 36-item Short-Form Health Survey (SF-36) dimensions (N=407).

Dimensions and models Percentage of ST accumulated in bouts of different lengths


≥10-minute bout ≥20-minute bout ≥30-minute bout ≥60-minute bout


Ba SE Betab P B SE Beta P B SE Beta P B SE Beta P
Physical function















Model 1c -0.267 0.086 -.159 .002 -0.253 0.074 -.171 .001 -0.271 0.077 -.176 <.001 -0.428 0.104 -.201 <.001

Model 2d -0.226 0.089 -.134 .01 -0.221 0.077 -.149 .004 -0.239 0.079 -.156 .002 -0.396 0.105 -.186 <.001
Physical role















Model 1 -0.126 0.094 -.067 .18 -0.137 0.081 -.082 .09 -0.159 0.084 -.092 .06 -0.239 0.114 -.100 .04

Model 2 -0.063 0.097 -.033 .52 -0.089 0.083 -.054 .29 -0.115 0.086 -.067 .18 -0.195 0.115 -.082 .09
Bodily pain















Model 1 -0.130 0.065 -.099 .045 -0.108 0.056 -.094 .05 -0.114 0.058 -.096 .048 -0.190 0.078 -.115 .02

Model 2 -0.106 0.067 -.081 .12 -0.089 0.058 -.077 .13 -0.096 0.059 -.080 .11 -0.171 0.079 -.104 .03
General health















Model 1 -0.034 0.069 -.025 .62 -0.048 0.060 -.040 .42 -0.058 0.062 -.047 .35 -0.076 0.084 -.044 .37

Model 2 -0.029 0.072 -.021 .69 -0.046 0.062 -.038 .46 -0.056 0.064 -.045 .38 -0.073 0.085 -.042 .39
Vitality















Model 1 -0.252 0.080 -.160 .002 -0.204 0.069 -.148 .003 -0.204 0.072 -.142 .004 -0.278 0.097 -.140 .004

Model 2 -0.209 0.083 -.133 .01 -0.168 0.071 -.122 .02 -0.169 0.073 -.117 .02 -0.242 0.098 -.122 .01
Social functioning















Model 1 -0.399 0.106 -.181 <.001 -0.351 0.091 -.182 <.001 -0.361 0.095 -.180 <.001 -0.500 0.129 -.181 <.001

Model 2 -0.285 0.108 -.130 .01 -0.261 0.093 -.135 .01 -0.275 0.095 -.137 .004 -0.412 0.128 -.149 .001
Emotional role















Model 1 0.040 0.121 .016 .74 0.012 0.105 .005 .91 -0.016 0.109 -.007 .88 -0.034 0.148 -.011 .82

Model 2 0.077 0.126 .031 .54 0.039 0.109 .018 .72 0.008 0.112 .004 .94 -0.010 0.150 -.003 .95
Mental health















Model 1 0.028 0.086 .016 .74 -0.015 0.075 -.010 .84 -0.029 0.077 -.018 .71 -0.104 0.105 -.047 .32

Model 2 0.059 0.090 .034 .51 0.006 0.077 .004 .94 -0.010 0.079 -.006 .90 -0.087 0.106 -.039 .41
Physical component














Model 1 -0.096 0.032 -.156 .003 -0.085 0.027 -.158 .002 -0.089 0.028 -.159 .002 -0.130 0.038 -.168 .001

Model 2 -0.083 0.033 -.135 .01 -0.075 0.028 -.139 .01 -0.079 0.029 -.141 .01 -0.119 0.039 -.154 .002
Mental component















Model 1 -0.023 0.050 -.022 .64 -0.031 0.043 -.034 .47 -0.039 0.045 -.041 .39 -0.065 0.061 -.050 .28

Model 2 0.003 0.052 .003 .95 -0.011 0.044 -.012 .80 -0.020 0.046 -.021 .66 -0.047 0.061 -.036 .44

aB: nonstandardized regression coefficient. Linear regression models were built using Enter method, with SF-36 domains as dependent variables and percentage of ST in different bout lengths as independent variables.

bBeta: standardized regression coefficient.

cModel 1: adjusted for age, fat percentage, occupational status, medication for pain, medication for depression, and accelerometer wear time.

dModel 2: analysis controlled for model 1 + moderate-to-vigorous PA.