Design and Validation of a Survey Questionnaire for the Assessment of Physician Transfusion Medicine Knowledge

Article Figures & Data

Table 1.

Topics covered in the Transfusion Medicine Competency Survey

Demographics

Sample Collection, Storage, and Administration of Blood

Components

Selection and Use of Blood Components

Complications of Transfusion

Transfusion-Transmitted Infections

Opinions on Education Needs

Table 2.

Internal Consistency and Reliability Determination

n	22	Number of Survey Questions
ΣV_i	4.64	Sum of individual variances for each question answered correctly
V_t	17.8	Variance for total answered correctly for all questions for all respondents
α	0.77	Alpha coefficient

Table 3.

Mean Percentage of the Number of Questions Answered Correctly by Specialty

Specialty	No. Per Group	Collection, Storage, Administration (5)*	Selection and Use of Blood Components (10)	Complications of Transfusion (7)	Overall (22)	95% CI Overall Percent Score
Anesthesiology	8	52.5 ± 28.5	62.5 ± 32.1	64.3 ± 19.7	60.8 ± 27.4	49.4 – 72.2
Emergency Medicine	5	56.0 ± 35.8	56.0 ± 37.5	74.3 ± 27.6	61.8 ± 33.8	47.7 – 75.9
Family Medicine	5	36.0 ± 32.9	44.0 ± 36.3	48.6 + 15.7	43.6 ± 29.4	31.4 – 55.9
Internal Medicine	14	52.9 ± 20.6	60.0 ± 25.7	63.3 ± 15.1	59.4 ± 21.1	50.6 – 68.2
Pediatrics	10	54.0 ± 20.7	65.0 ± 31.4	41.4 ± 21.9	55.0 ± 27.4	43.6 – 66.4
Department of Surgery	8	55.0 ± 16.8	58.8 ± 31.2	73.2 ± 22.2	62.5 ± 25.9	51.7 – 73.3
Obstetrics/Gynecology	3	73.3 ± 43.5	46.7 ± 45.2	76.2 ± 37.1	62.1 ± 44.0	43.7 – 80.5
Orthopedics	4	30.0 ± 41.1	35.0 ± 29.3	71.4 ± 30.4	45.8 ± 37.3	30.5 – 60.5
Otolaryngology	3	53.3 ± 38.0	40.0 ± 34.4	52.4 ± 26.2	47.0 ± 32.0	33.6 – 60.3
Pathology	3	80.0 ± 18.3	80.0 ± 23.3	85.7 ± 26.2	81.8 ± 22.4	72.5 – 91.2
Radiology	6	46.7 ± 18.3	51.7 ± 27.7	38.1 ± 15.9	46.2 ± 22.4	36.9 – 55.6
Other	9	37.5 ± 21.7	43.8 ± 18.9	41.1 ± 17.3	41.5 ± 18.3	33.9 – 49.1
Average for all specialties for question group	78	52.2 + 29.3	53.6 + 33.9	60.8 + 25.0	55.6 + 31.0	44.7 – 69.1

Table 4.

Mean Percentage Answered Correctly by Formal Education Hours (FEH) in Past 5 years

Formal Education Hours	Number	Mean % Correct Scores	95% CI
< 1 hour	25	57.5 ± 24.0	48.1 – 66.9
1-2 hours	14	57.1 ± 25.3	47.2 – 67.1
2-3 hours	3	59.1 ± 37.0	44.6 – 73.6
3-4 hours	5	70.0 ± 22.9	61.0 – 79.0
4-5 hours	9	62.6 ± 20.2	54.7 – 70.5
None	2	44.6 ± 17.8	37.7 – 51.6

Table 5.

Clinician Opinion on Personal Education Needs

Subject	No knowledge at all (%)	More education needed (%)	No education needed (%)
Immunohematology procedures	15	71	14
Selection and Use of Blood Components	7	65	28
Transfusion Practices	17	70	13
Complications of Transfusion	6	77	17
Average across all subject areas based upon opinion response	11	71	18