Effectiveness of educational video on deaf people’s knowledge and skills for cardiopulmonary resuscitation: a randomized controlled trial

Galindo Neto, Nelson Miguel; Sá, Guilherme Guarino de Moura; Barros, Lívia Moreira; Lima, Magda Milleyde de Sousa; Santos, Sônia Maria Josino dos; Caetano, Joselany Áfio

doi:10.1590/1980-220X-REEUSP-2022-0227en

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Original Article • Rev. esc. enferm. USP 57 • 2023 • https://doi.org/10.1590/1980-220X-REEUSP-2022-0227en copy

Effectiveness of educational video on deaf people’s knowledge and skills for cardiopulmonary resuscitation: a randomized controlled trial^* * Extracted from the doctoral thesis “Efetividade de vídeo educativo no conhecimento e habilidade de surdos acerca da ressuscitação cardiopulmonar: ensaio randomizado controlado”, Universidade Federal do Ceará, 2018.

Efectividad de video educativo sobre conocimiento y habilidad de personas sordas para reanimación cardiopulmonar: ensayo controlado aleatorizado

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

Objective:

To analyze the effectiveness of an educational video on deaf people’s knowledge and skills about cardiopulmonary resuscitation.

Method:

A randomized trial, carried out at three schools with 113 deaf people (control group = 57 and intervention group = 56). After the pre-test, the control group was exposed to the lecture, while the intervention group was exposed to the video. The post-test occurred immediately after the intervention and was repeated after 15 days. A validated instrument was used, with 11 questions, presented in video/Libras (to enable understanding by deaf people) and in written/printed form (to record the answers).

Results:

In the analysis of knowledge, the median of correct answers in the pre-test was similar between the groups (p = 0.635), while the intervention group had a higher accuracy in the immediate post-test (p = 0.035) and after 15 days (p = 0.026). In the skill analysis, the median of correct answers in the pre-test was higher in the control group (p = 0.031). There was no difference in the immediate post-test (p = 0.770), and there was a higher accuracy in the intervention group in the post-test after 15 days (p = 0.014).

Conclusion:

The video proved to be effective in increasing deaf people’s knowledge and skills about cardiopulmonary resuscitation. Brazilian Registry of Clinical Trials: RBR-5npmgj.

DESCRIPTORS
Persons with Hearing Impairments; Sign Language; Cardiopulmonary Resuscitation; Knowledge; Instructional Film and Video; Health Education

Variable		Control group	Intervention group	p*
Variable	Response	n (%)	n (%)	p*
Sex	Male	30 (52.6)	26 (46.4)	0.518
Sex	Female	27 (47.4)	30 (53.6)	0.518
Marital status	Married	8 (14.0)	6 (10.7)	0.599
Marital status	Single	49 (86.0)	50 (89.3)	0.599
Children	Yes	6 (10.5)	5 (8.9)	0.772
Children	No	51 (89.5)	51 (91.1)	0.772
Education	Elementary school	8 (14.0)	8 (14.3)	0.977
Education	High school	49 (86.0)	48 (85.7)	0.977
Use of hearing aid	Yes	5 (8.8)	5 (8.9)	0.977*
Use of hearing aid	No	52 (91.2)	51 (91.1)	0.977*
Hearing loss	Deep bilateral	30 (52.6)	29 (51.8)	0.947***
	Severe bilateral	11 (19.3)	13 (23.2)
	Bilateral anacusis	1 (1.7)	0 (0.0)
	Severe in one ear, deep in the other	7 (12.3)	5 (8.9)
	Severe in one ear, moderate in the other	0 (0.0)	1 (1.8)
	Deep in one ear, anacusis in the other	3 (5.3)	2 (3.6)
	No conclusion on medical report	5 (8.8)	6 (10.7)

Variable	Control group	Intervention group	p*
Variable	Median (75^th percentile)	Median (25^th and 75^th percentiles)	p*
Theoretical hits: knowledge
Pre-test	5 (3–6)	4 (3–5)	0.635
Immediate post-test	7 (6–8)	8 (7–9)	0.035
Post-test after 15 days	7 (6–8)	8 (7–9)	0.026
Practical hits: skill
Pre-test	7 (4–8.5)	6.25 (1–8)	0.031
Immediate post-test	10.5 (9.5–11)	10.5 (9.75–11)	0.77
Post-test after 15 days	10 (9.5–10.5)	10.5 (10–11)	0.014

Variable	Pre-test		p*	Post-test after 15 days		p
	Control group	Intervention group		Control group	Intervention group
	n (%)	n (%)		n (%)	n (%)
1- Identification	34 (59.6)	24 (42.9)	0.748	40 (70.2)	45 (80.4)	0.216*
2- Gravity	20 (35.1)	18 (32.1)	0.748	27 (47.4)	35 (62.5)	0.102*
3- Call for help	8 (14.0)	2 (3.6)	0.054	13 (22.8)	13 (23.2)	0.954*
4- SAMU number***	25 (43.9)	34 (60.7)	0.731	52 (91.2)	54 (96.4)	0.433**
5- Moment for compression	9 (15.8)	4 (7.1)	0.154	10 (17.5)	4 (7.1)	0.092*
6- Victim positioning	18 (31.6)	31 (55.4)	0.013	42 (73.7)	53 (94.6)	0.002*
7- Site for compression	41 (71.9)	35 (62.5)	0.282	56 (98.2)	56 (100.0)	0.311*
8- Rescuer’s position	23 (40.4)	29 (51.8)	0.224	51 (89.5)	47 (83.9)	0.387*
9- Compression strength	30 (52.6)	30 (53.6)	0.922	42 (73.7)	40 (71.4)	0.785*
10- Rotation	15 (26.3)	14 (25.0)	0.874	36 (63.2)	52 (92.9)	<0.001*
11- When to stop compression	26 (45.6)	22 (39.3)	0.499	35 (61.4)	34 (60.7)	0.942*

Variable	Pre-test		p*	Post-test after 15 days		p
	Control group	Intervention group		Control group	Intervention group
	n (%)	n (%)		n (%)	n (%)
1- Rescuer’s position	49 (86.0)	51 (91.1)	0.657**	57 (100.0)	56 (100.0)	§
2- Hand position	36 (63.2)	27 (48.2)	0.532**	55 (96.5)	56 (100.0)	0.496**
3- Hypothenar region in the thorax	28 (49.1)	27 (48.2)	1.02**	56 (98.2)	56 (100.0)	1.02**
4- Rescuer at 90° to the victim	44 (77.2)	36 (64.3)	0.132*	57 (100.0)	56 (100.0)	§
5- Start of compressions	46 (80.7)	38 (67.9)	0.112*	57 (100.0)	56 (100.0)	§
6- Straight arms	19 (33.3)	6 (10.7)	0.014**	43 (75.4)	46 (82.1)	0.743**
7- Trunk movement	26 (45.6)	11 (19.6)	0.014**	55 (96.5)	49 (87.5)	0.102**
8- Depth of 5 cm	33 (57.9)	28 (50.0)	0.38**	53 (93.0)	54 (96.4)	0.673**
9- Speed from 100 to 120	0 (0.0)	1 (1.8)	0.649**	9 (15.8)	24 (42.9)	0.006*
10- Return of the thorax	34 (59.6)	22 (39.3)	0.014**	53 (93.0)	55 (98.2)	0.496**
11- Uninterrupted compressions	26 (45.6)	19 (33.9)	0.138**	53 (93.0)	53 (94.6)	1.02**

Universidade de São Paulo, Escola de Enfermagem Av. Dr. Enéas de Carvalho Aguiar, 419 , 05403-000 São Paulo - SP/ Brasil, Tel./Fax: (55 11) 3061-7553, - São Paulo - SP - Brazil
E-mail: reeusp@usp.br

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[1] Corresponding author: Nelson Miguel Galindo Neto BR 232, Km 214, s/n., Prado 55200-000 – Pesqueira, PE, Brazil nelson.miguel@pesqueira.ifpe.edu.br