Table 3.
Parameter | Wald chi-square value | F-adjusted chi-square value | P value | |
Age group | ||||
|
“Yes” to having a tablet (N=1389) | 62.566 | 14.68 | <.001 |
|
“Yes” to having a smartphone (N=1379) | 140.397 | 32.95 | <.001 |
|
“Yes” to having a mobile phone (N=1350) | 52.49 | 12.32 | <.001 |
|
“Yes” to having a tablet or smartphonea (N=1396) | 121.111 | 28.42 | <.001 |
|
“Yes” to having a tablet and smartphoneb (N=1377) | 75.7 | 17.77 | <.001 |
Race/ethnicity | ||||
|
“Yes” to having a tablet (N=1274) | 6.638 | 1.56 | .20 |
|
“Yes” to having a smartphone (N=1267) | 1.69 | 0.40 | .81 |
|
“Yes” to having a mobile phone (N=1246) | 3.29 | 0.77 | .55 |
|
“Yes” to having a tablet or smartphonea (N=1277) | 0.95 | 0.22 | .92 |
|
“Yes” to having a tablet and smartphoneb (N=1266) | 1.57 | 0.369 | .83 |
Gender | ||||
|
“Yes” to having a tablet (N=1432) | 0.9871 | — | .33 |
|
“Yes” to having a smartphone (N=1419) | 0.2128 | — | .65 |
|
“Yes” to having a mobile phone (N=1389) | 0.5645 | — | .46 |
|
“Yes” to having a tablet or smartphonea (N=1440) | 0.0587 | — | .81 |
|
“Yes” to having a tablet and smartphoneb (N=1417) | 1.134 | — | .29 |
Education | ||||
|
“Yes” to having a tablet (N=1410) | 55.912 | 17.88 | <.001 |
|
“Yes” to having a smartphone (N=1398) | 64.93 | 20.76 | <.001 |
|
“Yes” to having a mobile phone (N=1370) | 28.07 | 8.975 | <.001 |
|
“Yes” to having a tablet or smartphonea (N=1417) | 63.70 | 20.365 | <.001 |
|
“Yes” to having a tablet and smartphoneb (N=1396) | 43.498 | 13.91 | <.001 |
aIncludes participants with nonmissing values for either device question (tablet or smartphone).
bIncludes participants with nonmissing values for both device questions (tablet and smartphone).