interference item
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2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Robert Knoerl ◽  
Emanuele Mazzola ◽  
Sandra A. Mitchell ◽  
Fangxin Hong ◽  
Elahe Salehi ◽  
...  

Abstract Background Timely detection of chemotherapy-induced peripheral neuropathy (CIPN) is critical to effectively tailor chemotherapy dose levels and offer supportive care. The purpose of this secondary analysis was to determine the reliability and validity of the two Patient-Reported Outcomes Version of the Common Terminology Criteria for Adverse Events (PRO-CTCAE™) numbness and tingling severity and interference items to screen for CIPN in patients receiving taxanes, platinums, or proteasome inhibitors. Methods Participants (N = 142) completed the two PRO-CTCAE items, a 0–10 numerical rating scale of worst CIPN pain intensity, and the Quality of Life Questionnaire–CIPN20 (QLQ-CIPN20) prior to three clinical visits (T1, T2, T3) during neurotoxic chemotherapy. Participants completed the two PRO-CTCAE items again following the T3 clinical visit (T4). In addition, study staff administered the modified Total Neuropathy Score–Clinical Version (TNSc©) at T3. We examined floor (i.e., no CIPN severity or interference) and ceiling effects, test–retest reliability, concurrent validity, longitudinal validity, construct validity of the response categories, and sensitivity and specificity of the two PRO-CTCAE items. Results At T3, 29% of participants had PRO-CTCAE severity scores at the floor; 60.1% of participants reported interference item scores at the floor. Agreements between scores reported at T3 and T4 for PRO-CTCAE severity (ICC = 0.79) and interference (ICC = 0.73) were moderate to strong. The PRO-CTCAE severity and interference items correlated moderately-strongly with QLQ-CIPN20 sensory (Spearman’s ρ-range = 0.53–0.72) and motor (Spearman’s ρ-range = 0.50–0.58) subscale scores. The Cohen’s d from T1 to T3 for the PRO-CTCAE items were small (severity: d = 0.32, interference: d = 0.40) and comparable to the effect sizes for change observed with the QLQ-CIPN20. The PRO-CTCAE severity (0–3) and interference (0–2) response categories distinguished respondents with significantly different levels of QLQ-CIPN20 sensory and motor subscale scores (p < 0.001 via Jonckheere-Terpstra tests). The sensitivity and specificity of the PRO-CTCAE severity item (cutoff > 0) to detect probable sensory peripheral neuropathy were 95.83% and 65.22%, while the sensitivity and specificity of the PRO-CTCAE™ interference item (cutoff > 0) were 51.39% and 73.91%. Conclusion Preliminary evidence supports the reliability and validity of the PRO-CTCAE numbness and tingling items for CIPN screening, although there may be floor effects and limitations in the capacity of the PRO-CTCAE items to identify the full range of CIPN sensory and motor features beyond numbness and tingling. Trial Registration ClinicalTrials.Gov, NCT03514680. Registered 21 April 2018. https://clinicaltrials.gov/ct2/show/NCT03514680


2020 ◽  
Vol 101 (1) ◽  
pp. 11-19 ◽  
Author(s):  
Noelle E. Carlozzi ◽  
Pamela A. Kisala ◽  
Aaron J. Boulton ◽  
Elliot Roth ◽  
Anna L. Kratz ◽  
...  

CrystEngComm ◽  
2020 ◽  
Vol 22 (17) ◽  
pp. 3042-3058
Author(s):  
Xiangyang Li ◽  
Jianjun Ding ◽  
Pujing Chen ◽  
Kang Zheng ◽  
Lin Chen ◽  
...  

The interface distribution function is composed mainly of the self-interference item of the first interface F11, the interference term of the first and the second interfaces F12, and the interference term of the first and the third interfaces F13.


Spine ◽  
2019 ◽  
Vol 44 (6) ◽  
pp. 411-419 ◽  
Author(s):  
Wouter Schuller ◽  
Caroline B. Terwee ◽  
Thomas Klausch ◽  
Leo D. Roorda ◽  
Daphne C. Rohrich ◽  
...  

PLoS ONE ◽  
2015 ◽  
Vol 10 (7) ◽  
pp. e0134094 ◽  
Author(s):  
Martine H. P. Crins ◽  
Leo D. Roorda ◽  
Niels Smits ◽  
Henrica C. W. de Vet ◽  
Rene Westhovens ◽  
...  

2015 ◽  
Vol 74 (Suppl 2) ◽  
pp. 418.1-418
Author(s):  
M.H. Crins ◽  
C.B. Terwee ◽  
R. Westhovens ◽  
D. van Schaardenburg ◽  
N. Smits ◽  
...  

2014 ◽  
Vol 989-994 ◽  
pp. 4290-4293
Author(s):  
Han Cheng Liao

Massive amounts of data frequently need to be communicated in the internet of things where the channel is wireless. CDMA is a good technology to combat fading. In order to improve the system capacity or the spectrum efficiency, more than one carrier can be employed. Both the transmitter structure and that of the receiver are given in this paper. The interference item, as well as the received signal, is carefully analyzed. A summary, after some simulation results is given in the end.


2014 ◽  
Vol 73 (Suppl 2) ◽  
pp. 377.2-377
Author(s):  
M. Crins ◽  
L.D. Roorda ◽  
A. de Vries ◽  
N. Smits ◽  
H.C. de Vet ◽  
...  

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