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. 2022 Mar 25;6(3):e33387. doi: 10.2196/33387

Table 3.

Bivariate linear regressions of compliance (N=231).

Characteristics Sample size, n (%) EMAa compliance Daily compliance


Margin (SE) βb (SE; 95% CI) P value Margin (SE) βb (SE; 95% CI) P value
Housing status

Unhoused (reference) 231 (100) 0.78 (0.02) N/Ac N/A 0.91 (0.02) N/A N/A

Housed 231 (100) 0.80 (0.02) .02 (.02; −0.03 to 0.64) .39 0.91 (0.01) .008 (.02; −0.03 to 0.05) .71
Phone type

Personal phone (reference) 207 (89.6) 0.78 (0.03) N/A N/A 0.89 (0.03) N/A N/A

Study phone 207 (89.6) 0.81 (0.01) .03 (.04; −0.05 to 0.10) .46 0.93 (0.01) .04 (.03; −0.03 to 0.10) .25
Study experience

Negative or neutral (reference) 181 (78.4) 0.76 (0.02) N/A N/A 0.93 (0.01) N/A N/A

Positive 181 (78.4) 0.82 (0.01) .06 (.03; 0.01 to 0.11) .01 0.91 (0.02) .02 (.02; −0.02 to 0.06) .33
Difficulty charging

None or a little (reference) 176 (76.2) 0.83 (0.01) N/A N/A 0.94 (0.01) N/A N/A

Somewhat or yes 176 (76.2) 0.76 (0.02) −.06 (.03; −0.11 to −0.01) .02 0.90 (0.02) −.04 (.02; −0.08 to 0.004) .07
Behavior change

Yes or neutral (reference) 207 (89.6) 0.79 (0.02) N/A N/A 0.92 (0.01) N/A N/A

No 207 (89.6) 0.82 (0.02) .04 (.02; −0.004 to 0.08) .08 0.92 (0.01) −.0008 (.02; −0.04 to 0.04) .97
Openness or honesty

No or neutral (reference) 207 (89.6) 0.77 (0.04) N/A N/A 0.88 (0.03) N/A N/A

Yes 207 (89.6) 0.80 (0.01) .04 (.04; −0.04 to 0.11) .36 0.93 (0.01) .04 (.03; −0.03 to 0.11) .22
Interference with life

None or a little (reference) 206 (89.2) 0.84 (0.01) N/A N/A 0.95 (0.01) N/A N/A

Somewhat or yes 206 (89.2) 0.76 (0.02) −.08 (.02; −0.13 to −0.04) <.001 0.89 (0.01) −.07 (.02; −0.10 to −0.03) .001
Stress or anxiety

None or a little (reference) 207 (89.6) 0.82 (0.01) N/A N/A 0.93 (0.01) N/A N/A

Somewhat or yes 207 (89.6) 0.74 (0.03) −.07 (.03; −0.13 to −0.02) .009 0.88 (0.02) −.05 (.03; −0.10 to −0.002) .04
Feeling judged

Yes or neutral (reference) 207 (89.6) 0.76 (0.02) N/A N/A 0.85 (0.02) N/A N/A

No 207 (89.6) 0.82 (0.01) .06 (.03; 0.01 to 0.11) .02 0.94 (0.01) .09 (.02; 0.05 to 0.14) <.001
Typical week

No (reference) 207 (89.6) 0.74 (0.02) N/A N/A 0.89 (0.02) N/A N/A

Yes 207 (89.6) 0.83 (0.01) .09 (.02; 0.04 to 0.14) <.001 0.93 (0.01) .04 (.02; −0.004 to 0.08) .08
Willingness to participate again

Neither agree nor disagree (reference) 205 (88.7) 0.79 (0.04) N/A N/A 0.93 (0.04) N/A N/A

Yes, agree 205 (88.7) 0.81 (0.01) .01 (.04; −0.07 to 0.10) .74 0.92 (0.01) −.002 (.04; −0.07 to 0.07) .96

aEMA: ecological momentary assessment.

bIndicates percentage change in compliance.

cN/A: not applicable.