Table 3

Modified Poisson regression models with individual IAT items as outcome measures and presence of moderate to severe depressive symptoms as primary predictorsa

Question

RR (95% CI)

P value


You find that you stay online longer than you intended

1.31 (1.08 to 1.58)

0.005

You neglect household chores to spend more time online

2.34 (1.34 to 4.10)

0.003

You prefer the excitement of the Internet to intimacy with your partner

11.46 (1.64 to 79.92)

0.014

You form new relationships with fellow online users

3.57 (0.86 to 14.86)

0.08

Others in your life complain to you about the amount of time you spend online

2.24 (0.17 to 29.13)

0.54

Your grades or schoolwork suffer because of the amount of time you spend online

4.69 (1.74 to 12.68)

0.002

You check your email before something else that you need to do

1.31 (0.97 to 1.76)

0.08

Does your job performance or productivity suffer because of the Internet?

4.86 (1.50 to 15.75)

0.008

You become defensive or secretive when anyone asks you what you do online

*

You block out disturbing thoughts about your life with soothing thoughts of the Internet

*

You find yourself anticipating when you will go online again

13.18 (4.14 to 41.99)

<0.001

You fear that life without the Internet would be boring, empty or joyless

3.35 (1.03 to 10.88)

0.05

You snap, yell or act annoyed if someone bothers you while you are online

*

You lose sleep due to late night logins

3.95 (1.92 to 8.10)

<0.001

You feel preoccupied with the Internet when offline or fantasize about being online

11.51 (1.91 to 69.29)

0.008

You find yourself saying "Just a few more minutes" when online

1.79 (1.14 to 3.41)

0.01

You try to cut down the amount of time you spend online

1.94 (1.11 to 2.81)

0.02

You try to hide how long you've been online

41.57 (3.79 to 455.35)

0.002

You choose to spend more time online than going out with others

10.54 (0.94 to 118.30)

0.06

You feel depressed, moody or nervous when you are offline, which goes away when you are back online

31.71 (2.82 to 356.01)

0.005


aRR, relative risk; 95% CI, 95% confidence interval; *inestimable based on cell size.

Christakis et al. BMC Medicine 2011 9:77   doi:10.1186/1741-7015-9-77

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