Question

Question 22:

You previously used R to generate a contingency table for the association between bullying (anyB, i.e., at school or online) and indications of suicide risk (anyS). The table was generated as follows:

> table(anyB,anyS)

anyS

anyB 0 1

   0 649 108

   1 165 78

1. Use these data to compute the odds ratio for the crude association between bullying and indications of suicide risk. (2 points)
2. Interpret the odds ratio that you calculate in a sentence. (2 points)

Answer 1

To estimate the prevalence of bullying in primary school children and to examine its association with common symptoms in childhood.

.Semistructured health interview conducted by school nurses as a part of school medication.

.There was a association between children reporting being bullied or more often and reporting not sleeping well(odds ratio 3.6,2.5 to 5.2),bed wetting (1.7,1.3 to 2.4),feeling sad(3.6,1.9 to 6.8), and experiencing more than occasional head ache(2.4 ,1.8 to 3.9) and tummy aches (2.4,1.8 to 3.3).Table shows in the beolw indicate the odds ratioGr

Bullied. Not bullied

Reported symptoms ,Odds, No. Of children ,Odds, No. Of children, Odds ration

Not Sleeping well 0.109, 53/486, 0.031 ,68/2228 ,3.57(2.46-5.18)

Bed wetting 0.129, 61/473 ,0.074 ,157/2119, 1.74(1.27-2.38)

Feeling sad 0.045 ,17/382 ,0.012, 23/1869 ,3.62(1.91-6.83)

Head ache 0.129 ,61/472, 0.053 ,116/2170 ,2.42(1.75-3.35)

Tummy ache 0.161 ,72/448 ,0.067 ,14/2116 ,2.41(1.78-3.26)

Relationship between suicidal feeling and bullying involvement with current violence from adult family members.

The odd ration of suicidal feeling in each group defined by bullying and current violence from adult family members.

Group Bullying involvement suicidal risk odds ration

1 . Uninvolved. 3.66(2.56-5.23)

2. Uninvolved. 1.87(1.43-2.45)

3. Bullying. 5.20(2.89-8.72)

4. Bullying. 3.80(2.94-4.00)

5. Victims. 9.80(6.09-15.7)

So here we can concluded that odds ration of suicidal feelings in each group defined by bullying and current violence from adult family members.