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. 2018 Mar 5;20(3):e64. doi: 10.2196/jmir.7802

Table 5.

Health behaviors of adolescents aged 11-17 years by survey design and data collection mode (prevalence-rates).

Health related quality of life Survey designa Data collection modea

Single-mode design Sequential MMb design Concurrent MMb design Preselect MMb design SAQ-Webc (crude) SAQ-paperd (crude) SAQ-Webc (adjustede) SAQ-paperd (adjustede)

n (%) n (%) Pi n (%) Pi n (%) Pi n (%) n (%) P n (%) n (%) P
Tobacco consumption













Current smoking status (yes)f 342 (8.8) 264 (8.3) .85 288 (11.5) .27 291 (10.7) .43 295 (11.5) 889 (9.2) .27 295 (11.6) 889 (9.2) .25

Water pipe consumption (past 12 months, yes)f 339 (18.0) 262 (17.9) .99 286 (18.2) .95 291 (16.2) .54 295 (20.3) 882 (16.7) .17 295 (19.1) 882 (17.1) .38

Second-hand smoke exposure (yes)f 308 (13.6) 239 (15.5) .55 249 (10.8) .31 259 (14.3) .82 261 (11.1) 793 (14.4) .16 261 (12.9) 793 (13.8) .74
Alcohol consumption













Lifetime consumption of alcohol (yes)f 343 (51.0) 262 (56.1) .21 290 (50.7) .93 292 (54.8) .34 295 (61.4) 891 (50.3) .001 295 (60.1) 891 (50.7) <.001

Hazardous alcohol consumption (based on AUDIT-Cg)f 328 (12.2) 255 (12.5) .90 284 (10.6) .53 284 (12.7) .86 293 (17.1) 857 (10.3) .01 293 (14.9) 857 (11.9) .16

Binge drinking (based on AUDIT-C)f 339 (7.7) 262 (7.7) .99 288 (5.6) .29 291 (8.9) .57 295 (10.5) 884 (6.5) .04 295 (10.0) 884 (7.2) .13
Physical activity













Physical activity consistent with WHOh guidelinesf 343 (6.1) 265 (5.3) .66 288 (3.1) .07 292 (3.8) .17 295 (4.1) 892 (4.8) .58 295 (3.3) 892 (5.2) .16

Low physical activityf 343 (14.9) 265 (12.5) .39 288 (15.3) .89 292 (17.1) .44 295 (13.9) 892 (15.2) .57 295 (14.5) 892 (15.0) .82

Currently doing sportsf 342 (79.5) 265 (81.9) .46 286 (78.0) .63 291 (77.0) .44 295 (80.3) 888 (78.6) .52 295 (79.3) 888 (78.9) .89
Media consumption













Social media (>2 hours/day)f 341 (20.2) 262 (19.1) .72 289 (17.3) .35 290 (19.7) .86 295 (20.0) 886 (18.8) .67 295 (21.3) 886 (18.4) .30

TV (>2 hours/day)f 341 (42.2) 262 (41.6) .88 289 (41.2) .79 292 (38.0) .28 294 (39.1) 889 (41.4) .49 294 (41.5) 889 (40.6) .79

Game console (>2 hours/day)f 339 (18.9) 261 (19.9) .75 287 (18.5) .90 290 (12.8) .03i 295 (20.0) 881 (16.7) .21 295 (19.9) 881 (16.7) .22

aSample sizes are shown in Table 1.

bMM: mixed-mode.

cSAQ-Web: self-administered Web-based questionnaire.

dSAQ-paper: self-administered paper-based questionnaire.

eAdjusted for age of the child (adolescent, parent); sex of the child (adolescent); relationship to the child (parent); household income (adolescent, parent); parental education (adolescent, parent); adolescent education (adolescent); region (adolescent, parent); municipality size (adolescent, parent); and parental marital status (parent).

fSelf-reported by adolescents aged 11-17 years.

gAUDIT-C: Alcohol Use Disorders Identification Test.

hWHO: World Health Organization; sample sizes are shown in Table 1.

iNot significant, P value adjusted with Bonferroni correction.