Bullying and Posttraumatic Stress Disorder (PTSD) Symptoms Among Adolescents of Public Schools in Colombia: A Cross-Sectional Study

Figures & data

Table 1. Sociodemographic characteristics.

	Mean (SD)
Age (years) (n = 1217)	14.46 (1.94)
	n (%)
Age (categorized) (n = 1217)
Adolescent	918 (75.43)
Young Adult	59 (4.85)
Child	240 (19.72)
Sex (n = 1214)
Male	619 (50.99)
Female	595 (49.01)
School Grade (n = 1217)
6^th	284 (23.34)
7^th	224 (18.41)
8^th	153 (12.57)
9^th	98 (8.05)
10^th	236 (19.39)
11^th	222 (18.24)
Parent’s Marital Status (n = 1211)
Married	355 (29.31)
Divorced	32 (2.64)
Separated	209 (17.26)
Single	113 (9.33)
Civil Union	480 (39.64)
Widowed	22 (1.82)
Substance Use (n = 1162)
Yes	630 (54.22)
No	532 (45.78)
Family Dysfunction (n = 1203)
Functional	302 (25.10)
Mild	400 (33.25)
Moderate	305 (25.35)
Severe	196 (16.29)

SD = standard deviation.

The “n” value might vary between variables due to missing responses.

Table 2. Prevalence of bullying (per role) and presence of PTSD symptoms.

	Prevalence of bullying	Presence of PTSD symptoms
	n = 1219	n = 1001
	n (%)	n (%)
Physical Victim
No	208 (17.06)	142 (14)
Yes	1011 (82.94)	859 (86)
Verbal Victim
No	90 (7.38)	50 (5)
Yes	1129 (92.62)	951 (95)
Social Victim
No	296 (24.28)	203 (20)
Yes	923 (75.22)	798 (80)
Victim by Coercion
No	976 (80.07)	774 (77)
Yes	243 (19.93)	227 (23)
Physical Aggressor
No	397 (32.57)	288 (29)
Yes	822 (67.43)	713 (71)
Verbal Aggressor
No	198 (16.24)	140 (14)
Yes	1021 (83.76)	861 (86)
Social Aggressor
No	491 (40.28)	357 (36)
Yes	728 (59.72)	644 (64)
Aggressor by Coercion
No	1114 (91.39)	905 (90)
Yes	105 (8.61)	96 (10)
Physical Witness
No	134 (10.99)	73 (7)
Yes	1085 (89.01)	928 (93)
Verbal Witness
No	116 (9.52)	64 (6)
Yes	1103 (90.48)	937 (94)
Social Witness
No	179 (14.68)	103 (10)
Yes	1040 (85.32)	898 (90)
Witness by Coercion
No	719 (58.98)	548 (55)
Yes	500 (41.02)	453 (45)

PTSD = post-traumatic stress disorder.

The “n” value for Symptoms of PTSD is smaller due to missing responses.

Table 3. Logistic regression analysis of PTSD symptoms.

					ORCI (95%)
	β	SE	p	OR	Upper	Lower
Age (categorized)
Adolescent (RC)	0.000	0.000		1.000
Young Adult	0.566	0.478	0.237	1.761	0.690	4.498
Child	0.322	0.264	0.222	1.380	0.823	2.313
Sex
Female (RC)	0.000	0.000		1.000
Male	−0.278	0.189	0.142	0.758	0.523	1.098
Lives with Mother
No (RC)	0.000	0.000		1.000
Yes	0.627	0.345	0.070	1.872	0.951	3.683
Alcohol Consumption
Once (RC)	0.000	0.000		1.000
No	0.221	0.242	0.363	1.247	0.775	2.005
Last Month	−0.216	0.298	0.469	0.806	0.449	1.446
Last 6 Months	0.716	0.416	0.085	2.046	0.906	4.622
Family Dysfunction
Functional (RC)	0.000	0.000		1.000
Severe	1.216	0.336	0.000*	3.372	1.744	6.520
Mild	0.847	0.225	0.000*	2.332	1.500	3.623
Moderate	1.007	0.262	0.000*	2.738	1.638	4.576
Verbal Victim
No (RC)	0.000	0.000		1.000
Yes	1.022	0.282	0.000*	2.779	1.599	4.828
Social Victim
No (RC)	0.000	0.000		1.000
Yes	0.726	0.206	0.000*	2.067	1.381	3.095
Victim by Coercion
No (RC)	0.000	0.000		1.000
Yes	1.396	0.438	0.001*	4.038	1.710	9.532
Social Aggressor
No (RC)	0.000	0.000		1.000
Yes	0.680	0.199	0.001*	1.974	1.335	2.919

CI = confidence interval; OR = odds ratio; PTSD = post-traumatic stress disorder; RC = reference category; SE = standard

*significance ≤ 0.005.

Figure 1. ROC curve.

Figure 2. Display of variables by dimensions in multiple correspondence analysis.