Jacobson and Truax Method: evaluation of the clinical effectiveness of a home care program after prostatectomy.
Luciana Regina Ferreira Pereira da Mata, Mariana Ferreira Vaz Gontijo Bernardes, Cissa Azevedo and 3 others
PMID 29791672WHAT IT FOUND
Nurse-led discharge teaching using oral guidance, a booklet and telephone reinforcement as a combined program was followed by clinically meaningful knowledge gains in most intervention-group men after prostatectomy; control-group men did not show clinically meaningful change.
The components cannot be separated.
Key findings
01The trial randomized 34 men to each group and followed them for two months, and inferential tests showed significant differences between groups for satisfaction and knowledge (p ≤ 0.001).
02Only two of 34 intervention-group participants did not show a reliable knowledge change, and four of 34 did not show a clinically relevant knowledge change.
03In the control group, one of 34 participants showed a reliable negative change, 28 showed no reliable change, six showed a positive reliable change, and none showed clinically significant knowledge change.
STILL TO COME
How it was doneWhat they foundWhat it means for RNs
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What it does not show
The sample-size calculation was based on self-efficacy, but the article reports knowledge results. The knowledge questionnaire had only reliability testing, not factorial validity, because the sample was small. The Jacobson and Truax method was applied only to knowledge; satisfaction was not analysed clinically because it used a Likert item. The control group had a statistically significant knowledge difference by inferential tests, but no individual showed clinically significant change. The article is a methodological demonstration using trial data, not a full effectiveness report of the program. The intervention combined oral orientation, writing and telephone reinforcement, so the effect of any single component cannot be separated.
The easy way to misread this
Do not read the p ≤ 0.001 knowledge difference as proof that the program made every patient clinically knowledgeable. Four of 34 intervention-group men did not show clinically relevant change, and none of 34 control-group men did.