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. 2014 May 30;16(5):e143. doi: 10.2196/jmir.3163

Table 2.

Follow-up health behaviors and well-being of adolescents and effects of the interventions with the control group as reference (N=1252).

Behaviors and well-being E-health4Uth
n=392
E-health4Uth + consult
n=430
Control
n=434
E-health4Uth vs controla E-health4Uth + consult vs control groupb




OR/B (95% CI) P OR/B (95% CI) P
Alcohol consumption, n (%)







5 or more drinks on 1 occasion in the past 4 weeks






0 times 230 (59.0) 280 (65.9) 276 (63.7) 0.90 (0.61, 1.34)c .62 1.21 (0.77, 1.26)c .35


1 times 62 (15.9) 44 (10.4) 58 (13.4)





2 times 43 (11.0) 32 (7.5) 37 (8.5)





3-4 times 28 (7.2) 46 (10.8) 34 (7.9)





5 or more times 27 (6.9) 23 (5.4) 28 (6.5)




Have been drunk or tipsy in the past 4 weeks






0 times 275 (70.5) 317 (74.6) 321 (74.1) 0.90 (0.61, 1.35)c .62 1.22 (0.85, 1.74)c .29


1 times 57 (14.6) 52 (12.2) 57 (13.2)





2 times 18 (4.6) 20 (4.7) 20 (4.6)





3 or more times 40 (10.3) 36 (8.5) 35 (8.1)



Smoking, n (%)







No 323 (82.8) 351 (82.6) 349 (80.8) 0.97 (0.61, 1.56)c .90 0.95 (0.58, 1.57)c .84

Less than once a week 21 (5.4) 14 (3.3) 23 (5.3)




At least once a week, but not every day 14 (3.6) 11 (2.6) 19 (4.4)




Every day 32 (8.2) 49 (11.5) 41 (9.5)



Drug use (past 4 weeks), n (%)





0 times 367 (94.1) 381 (89.6) 396 (91.7) 1.06 (0.43, 2.61)d .90 0.65 (0.26, 1.59)d .34

1 or more times 23 (5.9) 44 (10.4) 36 (8.3)



Condom use during intercourse (n=376), n (%)




Always 62 (52.1) 66 (43.7) 43 (40.6) 2.09 (1.04, 4.22)c .04 1.36 (0.76, 2.44)c .31

Usually 24 (20.2) 32 (21.2) 15 (14.2)




Sometimes/almost never 18 (15.1) 38 (25.2) 27 (25.5)




Never 15 (12.6) (15) 15 (9.9) 21 (19.8)



Well-being, mean (SD)







SDQ scoref 8.92 (5.26) 8.42 (5.05) 9.07 (5.38) −0.24 (−0.78, 0.29)e .37 −0.60 (−1.17, −0.04)e .04

YSR scoref 33.89 (23.02) 31.58 (22.58) 34.75 (25.26) −0.89 (−4.18, 2.40)e .60 −2.74 (−5.92, 0.44)e .09

CHQ-CF-GH4 scoreg 75.34 (16.56) 74.00 (18.49) 73.73 (18.17) 2.79 (0.72, 4.87)e .008 1.03 (−1.12, 3.19)e .35

aE-health4Uth vs control group: analyses were adjusted for the baseline value of each outcome.

bE-health4Uth and consultation vs control group: analyses were adjusted for age and the baseline value of each outcome.

cMultilevel ordinal regression; OR (95% CI).

dMultilevel logistic regression; OR (95% CI).

eMultilevel linear regression; Beta coefficient (95% CI).

fA higher score indicates more mental health problems (SDQ range 0-40, YSR range 0-210).

gA higher score indicates a better health-related quality of life (range 0-100).