scholarly journals Examining the safety of duck breast prepared the sous vide method

2016 ◽  
Author(s):  
Sara Plain ◽  
BCIT School of Health Sciences, Environmental Health ◽  
Helen Heacock ◽  
Lorraine McIntyre
Keyword(s):  
Null Hypothesis ◽  
Rest Period ◽  
P Value ◽  
Log10 Reduction ◽  
Acceptable Quality ◽  
Wide Variability ◽  
The Mean ◽  
Sous Vide ◽  
Microbial Destruction ◽  
Resting Period

  Objectives: There is an increasing desire in the culinary industry to use sous vide to prepare meals at low internal temperatures to enhance flavour, texture, and quality. The sous vide method uses specific time and temperature combinations to allow for sufficient microbial destruction. The BCCDC’s Guidelines for Restaurant Sous Vide Cooking Safety in British Columbia suggests time and temperature combinations to help ensure that the required log10 reductions of pathogens are achieved. Concerns for public safety arise when chefs deviate from the guidelines, and therefore may not achieve the appropriate log10 reductions. This study looked at a commonly used sous vide duck breast recipe and determine whether appropriate the appropriate log10 reductions were met. It also examine the efficacy of the sear step and resting period in achieving the log10 reductions. Methods: After calibration, two batches of 15 duck breasts were prepared using the sous vide method for 80 minutes at 58ºC, the breasts were then seared on a 200°C frying pan for 2 minutes each side, and then subjected to a 4 minute rest period at room temperature. The internal temperature of the breasts was continuously measured using SmartButton thermometers. This data was entered into the AMI Process Lethality Determination Spreadsheet to calculate the log10 reductions. The log10 reductions were analyzed using a one-sample t-test to assess whether the recipe achieved the required 7.0 log10 reductions. Results: The results showed 14% of the 29 duck breasts achieved a 7.0 log10 reduction after the sous vide step of 80 minutes at 58 ºC. The null hypothesis (Ho: measured log10 reductions of duck breasts = 7.0 log10 reductions) was rejected with 100% power and a p-value of 0.00. The mean was 5.13, therefore it seems as though the log10 reductions were significantly lower than 7.0 log10 reductions. After the sear and the resting period, 52% of 27 duck breasts achieved a 7.0 log10 reduction. Statistical analyses showed that the null hypothesis could not be rejected. The p-value was 0.97 and the power was 0.413. Disregarding cumulative effects, the median log10 reductions achieved only by the sear step was 0.43, and the median log10 reductions achieved solely by the resting period was 0.35. Conclusion: Due to lack of normality one cannot confidently say this recipe will achieve 7.0 log10 reductions. However, due to the high log10 reductions achieved, it seems plausible for another recipe to provide adequate log10 reductions while maintaining acceptable quality. The sous vide step should be used for the majority of the log10 reductions. Due to a wide variability in the results, the sear and resting period should only be used for small increases in log10 reductions.  

Ultrasonographic Assessment of the Distance of Sciatic Nerve Bifurcation from the Popliteal Crease and its Depth from Skin in Volunteers

2020 ◽  
Vol 18 (2) ◽  
pp. 73-77
Author(s):  
U. Sharma ◽  
S. Lama Moktan ◽  
S.B Shrestha
Keyword(s):  
Sciatic Nerve ◽  
College Teaching ◽  
Cross Sectional Study ◽  
P Value ◽  
Nerve Blocks ◽  
Cross Sectional ◽  
Medical College ◽  
Wide Variability ◽  
The Mean ◽  
Ultrasonographic Assessment

Background Sciatic nerve block used for various surgeries below knee and for maintenance of analgesia demonstrates wide variability regarding its bifurcation into tibial and common peroneal nerves, frequently accounting for incomplete nerve blocks. Objective To determine the variation of sciatic nerve bifurcation among Nepalese volunteers. Method This cross sectional study was conducted in the Department of Anesthesiology of Kathmandu Medical College Teaching Hospital from March to May 2019, where 110 healthy volunteers underwent ultrasonography of sciatic nerve starting from popliteal fossa to its bifurcation. The distance between the bifurcation of sciatic nerve from popliteal crease and depth of the nerve at that point from the skin were measured. Result The mean distance at which sciatic nerve bifurcated from the popliteal crease was 5.42 ± 1.37 cm. Most commonly, the sciatic nerve bifurcated at a distance of 5-7 cm from the popliteal crease in 110 limbs (50.45%). However, in 80 limbs (36.69%), the bifurcation was found at less than 5 cm from the popliteal crease. The depth of the nerve from the skin at the point of bifurcation was 1.72 ± 0.54 cm, with results showing it was deeper in females compared to males (p value < 0.001). Conclusion This study showed that though the distance of sciatic nerve bifurcation from the popliteal crease in our study group was coherent with the published literature of 5-12 cm; many volunteers also had this bifurcation at distances less than 5 cm. Females showed nerves to be deeper at the point of bifurcation than males.

scholarly journals Evaluating the effects of using plastic, silicone, and glass on time of sous vide cooking of gravy

2019 ◽  
Author(s):  
May-Lee Guan ◽  
BCIT School of Health Sciences, Environmental Health ◽  
Helen Heacock ◽  
Lorraine McIntyre
Keyword(s):  
Water Bath ◽  
P Value ◽  
Convection Oven ◽  
Data Loggers ◽  
Significant Difference ◽  
Long Time ◽  
The Mean ◽  
Sous Vide ◽  
Lower Temperature ◽  
Mean Time

  Background: Sous vide cooking is popular method of cooking involving a water bath with immersion circulator or a steam convection oven. This process is also known as low-temperature long-time method (LTLT), where food is held at a lower temperature over extended time for cooking (1). Plastic is the more commonly used medium with sous vide cooking. Glass and silicone are an environmentally alternative to plastic, since they are reusable mediums. These alternative mediums have not been studied and may affect the time to reach pasteurization. The purpose of this experiment is to determine how plastic, silicone, and glass influence time in sous vide cooking of gravy to 56.5°C. Methods: Four of each medium: plastic, silicone, and glass containing 500 mL of gravy with SmartButton data loggers at 4°C were introduced into a 56.5 °C water bath for 150 minutes. The data loggers recorded the temperature at one minute intervals. The data was used to run a One-Way Analysis of Variance (ANOVA) to analyze if there were any statistically significant differences between the three mediums and time, and a Scheffe’s test to compare the mean time of each of the mediums. Results: There was a difference in time of sous vide cooking for gravy at 56.5°C between the mediums: plastic, glass, silicone. The p-value was 0.00, therefore rejecting Ho and accepting there is a difference in time of sous vide cooking gravy at 56.5°C between the different mediums: plastic, glass, silicone. Comparing the mediums among each other, it showed that there was a difference between glass and silicone, glass and plastic and no significant difference between plastic and silicone medium. Conclusion: The results indicate that there is a statistically significant difference in time that it took for gravy to reach 56.5°C between the mediums: plastic, silicone, and glass. The mean time for each medium to reach 56.5°C differed; 65 minutes for plastic, 68 minutes for silicone, and 129 minutes for glass. This shows that a more environmentally friendly alternative to plastic sous vide pouches can be used. Silicone pouches show to be the best alternative, least compromising of the come-up and pasteurization time. If sous vide users opt to use glass, the come-up time almost doubles in time.  

scholarly journals STUDENTS’ ABILITY IN UNDERSTANDING SIMPLE PAST TENSE THROUGH WHISPER AND WRITE GAME

2019 ◽  
Vol 7 (2) ◽  
Author(s):  
Opik Dwi Indah
Keyword(s):  
Null Hypothesis ◽  
Alternative Hypothesis ◽  
Sampling Technique ◽  
Second Grade ◽  
Past Tense ◽  
P Value ◽  
Second Grade Students ◽  
Significant Difference ◽  
The Mean ◽  
Written Test

This research applied pre-experimental research. The research aimed at finding out whether whisper and write game can increase students’ ability in understanding simple past tense or not. The population of this research was the second grade students of Informatics Department at Cokroaminoto Palopo University. The researcher used purposive sampling technique in determining the students as sample. The sample was class 2F which consisted of 35 students. The instrument of the research was written test. The result shows that the mean score of the posttest is higher than mean score pretest (71.31 > 44.51). Meanwhile, P-Value is 0.00 and α is 0.05. It shows that P-value is smaller than α (0.00 < 0.05). It means that null Hypothesis (H0) is rejected and alternative Hypothesis (H1) is accepted. So, there is significant difference between the result of pretest and posttest after giving the treatment in teaching simple past tense by using whisper and write game. It can be concluded that whisper and write game can increase students’ ability in understanding simple past tense.

PENINGKATAN KUALITAS HIDUP MELALUI LOGOTERAPI PADA KLIEN YANG MENJALANI HEMODIALISIS

2019 ◽  
Vol 11 (1) ◽  
pp. 9-18
Author(s):  
Abdul Wakhid ◽  
Ana Puji Astuti ◽  
Maya Kurnia Dewi
Keyword(s):  
Quality Of Life ◽  
Renal Failure ◽  
Test Group ◽  
Sampling Technique ◽  
T Test ◽  
P Value ◽  
Number Of Patients ◽  
Post Test ◽  
The Mean

Logoterapi merupakan terapi untuk menemukan makna positif dibalik sebuah kejadian yang tidak diharapkan. Logoterapi dilaksanakan secara individu maupun berkelompok dalam bentuk konseling dan berorientasi pada pencarian makna hidup individu. Tujuan logoterapi meningkatkan makna pengalaman hidup individu yang diarahkan kepada pengambilan keputusan yang bertanggung jawab. Penelitian ini dilakukan dengan menggunakan rancangan pre-experiment dengan metode pre and post test group, artinya pengumpulan data dilakukan terhadap responden untuk membandingkan kualitas hidup sebelum dan sesudah dilakukan intervensi. Teknik pengambilan sampel dilakukan dengan metode total sampling yaitu pengambilan seluruh sampel dengan tetap memperhatikan kriteria yang telah ditetapkan. Jumlah pasien yang menjalani hemodialisis di RSUD Ungaran sebanyak 21 orang dan di RSUD Ambarawa sebanyak 25 pasien. Analisis data dilakukan dengan menggunakan uji t test dependent. Hasil penelitian didapatkan bahwa dari 46 responden didapatkan rata-rata skor kualitas hidup pasien yang mejalani hemodialisis sebesar 60.22 dengan skor terrendah 55 dan skor tertinggi 69. Bahwa dari 46 responden didapatkan rata-rata skor kualitas hidup pasien yang mejalani hemodialisis sebesar 88.72 dengan skor terrendah 79 dan skor tertinggi 103. Hasil uji statistik dengan uji t test dependent diketahui ada pengaruh logoterapi terhadap kemampuan memaknai hidup pada klien yang menjalani hemodialisis di RSUD Kabupaten Semarang (p value: 0,0001). Saran perlunya peningkatan kemampuan perawat dalam memberikan layanan kesehatan termasuk pemberian atau pemanduan penemuan makna hidup bagi pasien hemodialysis, agar selain dengan hemodialysis, ada faktor internal dari pasien yang dapat dijadikan sebagai motivasi untuk sembuh dari penyakit.   Kata Kunci: Logoterapi, kualitas hidup   IMPROVE THE QUALITY OF LIFE OF PATIENTS WITH RENAL FAILURE WHO UNDERWENT HEMODIALYSIS   ABSTRACT Logotherapy is a therapy to discover the positive meaning behind an unexpected event. Logotherapy is carried out individually or in groups in the form of counseling and oriented to the search for the meaning of individual life. This study aims to improve the quality of life of patients with renal failure who underwent hemodialysis. This research was conducted by using pre-experiment with pre-post test study. The sampling technique was done by the convenience sampling. The number of patients undergoing hemodialysis as many as 46 respondents. Data analysis was done by using test t test dependent. The result showed that from 46 respondents got the mean of quality of life of patients who had hemodialysis 60.22 with lowest score 55 and highest score 69. Whereas from 46 respondents got the mean score of life quality of patients who had hemodialysis 88.72 with score the lowest score 79 and the highest score 103. The result of statistical test with t test dependent is known there is influence of logoterapi to the ability of meaningful life on client who undergo hemodialysis at Semarang Regency hospitals (p value: 0.0001). Advice on the need to improve the nurse's ability to provide health services, including the provision or guidance of the discovery of the meaning of life for hemodialysis patients, in addition to hemodialysis, there are internal factors of the patient that can be used as a motivation to recover from illness.   Keywords: Logotherapy, quality of life, kidney failure.  

Brief Overview and Experience of Visual Evoked Potential of First 67 cases at Referral Neuroscience Hospital in Bangladesh

2020 ◽  
Vol 6 (2) ◽  
pp. 74-77
Author(s):  
Mohammad Enayet Hussain ◽  
Bithi Debnath ◽  
AFM Al Masum Khan ◽  
Md Ferdous Mian ◽  
Md Nahidul Islam ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Optic Neuritis ◽  
Clinical Diagnosis ◽  
Optic Neuropathy ◽  
Cross Sectional Study ◽  
P Value ◽  
Pattern Reversal ◽  
Cross Sectional ◽  
The Mean ◽  
Visual Evoked

Background: The visual evoked potentials (VEP) is a valuable tool to document occult lesions of the central visual channels especially within the optic nerve. Objectives: The purpose of the present study was to observe the findings of first few cases of VEP done in the neurophysiology department of the National Institute of Neurosciences (NINS), Dhaka, Bangladesh. Methodology: This cross-sectional study was conducted in the Department of Neurophysiology at the National Institute of Neurosciences and Hospital, Dhaka, Bangladesh from September 2017 to March 2020. All patients referred to the Neurophysiology Department of NINS for VEP were included. Pattern reversal VEPs were done using standard protocol set by International Federation of Clinical Neurophysiology (IFCN). Results: The mean age of the study population was 30.70 (±12.11) years (6-68 years) with 31 (46.3%) male and 36 (53.7%) female patients. The mean duration of illness was 8.71 (±1.78) months (3 days- 120 months). Most common presenting symptom was blurring of vision (37.3%) and dimness of vision (32.8%). Patterned VEP revealed mixed type (both demyelinating and axonal) of abnormality in most cases [29(43.35)]. The most common clinical diagnosis was multiple sclerosis (29.85%) and optic neuropathy (26.87%). In the clinically suspected cases of multiple sclerosis, optic neuropathy and optic neuritis most of the cases of VEP were abnormal and the p value is 0.04 in optic neuropathy and optic neuritis. Conclusion: The commonest presentation of the patients in this series were blurring of vision and dimness of vision. The most common clinical diagnosis for which VEP was asked for, was optic neuritis and multiple sclerosis. Most abnormalities were of mixed pattern (demyelinating and axonal). Journal of National Institute of Neurosciences Bangladesh, 2020;6(2): 74-77

Employing Personal Reading Logs through Short Stories to Enhance Students’ L2 Reading Comprehension Achievement

2019 ◽  
Vol 3 (2) ◽  
pp. 1
Author(s):  
Eliyas Sulaiman Mohandas ◽  
Nik Mastura Nik Ismail Azlan ◽  
Salwa Othman ◽  
Muhammad Aizat Azhari
Keyword(s):  
Short Stories ◽  
Reading Comprehension ◽  
P Value ◽  
L2 Reading ◽  
Reading Score ◽  
Paired Samples ◽  
Significant Difference ◽  
Post Test ◽  
The Mean ◽  
L2 Reading Comprehension

This study aims to investigate whether the use of six selected short stories throughout the duration of a 14-week course could enhance students’ reading comprehension achievement at the end of the semester. Out of the six short stories read, three were chosen as in-class assignments known as ‘Personal Reading Logs’ (hereafter, PRLs). One group of semester two Diploma students taking a reading skills course was selected through a convenience sampling method. A pre-test was conducted by having the students answer a past semester reading quiz of which the results would then be compared to their post-test (final reading exam) results. A paired samples t-test revealed no significant difference in the reading scores of the pre-test and the post-test, t (17) = -.265, p > .05. Since the p-value was bigger than 0.05, this indicated that the mean reading score of the post-test (M = 50.556) was not significantly higher than the mean reading score of the pre-test (M = 49.722). Therefore, the null hypothesis which stated that there was no difference in the mean score of the pre-test and post-test was retained. Overall, the result refuted the findings of other studies promoting the effectiveness of using short stories to enhance L2 reading comprehension achievement.

DAMPAK PENERAPAN BEA MASUK ANTI-DUMPING ATAS IMPOR PRODUK TINPLATE

2020 ◽  
Vol 4 (1) ◽  
Author(s):  
Marsanto Adi Nurcahyo ◽  
Aditya Subur Purwana
Keyword(s):  
Free Trade ◽  
Descriptive Analysis ◽  
Secondary Data ◽  
P Value ◽  
Import Duty ◽  
Domestic Production ◽  
The Mean ◽  
Mean Equality ◽  
Equality Test

ABSTRACT:Anti-dumping on tinplate products aim to protect domestic industries. Still, some industries want tinplate products not to be subject to anti-dumping because domestic production is not sufficient. This research examines the application of anti-dumping import duties on tinplate products from China, Taiwan, and Korea from 2014 to 2018, to know whether there are differences in the value of imports before and during the anti-dumping import duty. Use secondary data sourced from UN-Comtrade. Samples are selected by countries that have continuously sent tinplate products to Indonesia from 2010 to 2018, namely China, Taiwan, Korea, Japan, Germany, India, and Malaysia. Using the Mean Equality Test, it is known that there are differences in the import value before and during the anti-dumping import duty, with a p-value of 0.0114 less than α (0.05), so it is concluded that there is a difference in the import value of the tinplate product before and during anti-dumping duty. Descriptive analysis results illustrate imports from China and Taiwan tend to decrease. In contrast, imports from Korea tend to increase despite being subjected to anti-dumping duties because they can compete by using preferential tariffs based on free trade schemes.Keywords: Antidumping, Import duty, TinplateABSTRAK:Anti-dumping terhadap produk tinplate bertujuan melindungi industri dalam negeri, akan tetapi terdapat ìndustri yang menginginkan produk tinplate tidak dikenakan anti-dumping karena produksi dalam negeri belum mencukupi. Penelitian ini menguji penerapan bea masuk anti-dumping terhadap produk tinplate dari China, Taiwan dan Korea selama tahun 2014 s.d. 2018, dengan tujuan mengetahui apakah ada perbedaan nilai importasi sebelum dan selama dikenakan bea masuk anti-dumping. Menggunakan data sekunder yang bersumber dari UNComtrade. Sampel dipilih negara yang secara kontinyu mengirim produk tinplate ke Indonesia sejak 2010 s.d. 2018, yaitu China, Taiwan, Korea, Jepang, Jerman, India dan Malaysia. Menggunakan Mean Equality Test, diketahui terdapat perbedaan nilai importasi sebelum dengan selama dikenakan bea masuk anti-dumping. Hasil penelitian menunjukkan bahwa nilai-P (p-value) adalah 0,0114 lebih kecil dari alpha (α=0,05), sehingga disimpulkan terdapat perbedaan pada nilai importasi produk tinplate sebelum dengan selama dikenakan bea masuk anti-dumping. Hasil analisis deskriptif menggambarkan importasi dari China dan Taiwan cenderung menurun sedangkan importasi dari Korea cenderung naik walaupun dikenakan bea masuk anti-dumping karena mampu bersaing dengan menggunakan tarif preferensi berdasarkan skema perdagangan bebas.Kata Kunci: Anti-dumping, Bea Masuk, tinplate

Association Between Awareness of Informal Caregivers and Falls in Elderly Patients with Uncontrolled Diabetes Mellitus

2020 ◽  
Vol 13 (1) ◽  
pp. 658-666
Author(s):  
Tossapon Chamnankit ◽  
Parichat Ong-artborirak ◽  
Jukkrit Wangrath
Keyword(s):  
Diabetes Mellitus ◽  
Elderly Patients ◽  
Elderly People ◽  
Informal Caregivers ◽  
Multivariable Analysis ◽  
P Value ◽  
Uncontrolled Diabetes ◽  
Risk Of Falls ◽  
The Mean ◽  
Falls In Elderly

Background: Elderly people with uncontrolled diabetes mellitus (DM) are at risk of falls, which can lead to injury and disability. Not much is known of informal caregivers’ awareness of falls in elderly patients with DM. Objective: This study aims to identify an association between caregiver’s awareness and falls in elderly patients with DM. Methods: A total of 136 pairs of DM patients and their respective family caregivers were recruited from a clinical service center at Chiang Mai University, Thailand. The questionnaire regarding the caregiver’s awareness of the risk of falls in elderly patients was given via a face-to-face interview. Each elderly patient was asked about their history of falls in the prior year, and the risk of falls was assessed by Time Up & Go (TUG) test. Logistic regression analysis was performed to determine association. Results: The mean age of the DM patients was 65.7 years. Sixty-two patients (45.6%) had fallen at least once in the prior year. The mean TUG test result was 12.67±1.83 second. Most caregivers demonstrated a high level of awareness regarding the risk of falls in elderly patients. The results of the multivariable analysis showed that three variables – balance problems, risk of falls assessed by TUG test, and scores of caregiver’s awareness of risk of falls – were significantly related to falls in the previous year among elderly patients with DM (p-value<0.05). Conclusion: The caregivers’ awareness of fall risk may influence fall occurrence among older adults with DM. An intervention program to improve awareness among informal caregivers should be considered for fall prevention in elderly people.

Correlation of AGR2 expression with the incidence of metastasis in luminal breast cancer

2021 ◽  
pp. 1-5
Author(s):  
David Samuel Kereh ◽  
John Pieter ◽  
William Hamdani ◽  
Haryasena Haryasena ◽  
Daniel Sampepajung ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cancer Patients ◽  
Mean Value ◽  
Rank Test ◽  
Luminal Breast Cancer ◽  
P Value ◽  
Strong Positive Correlation ◽  
Breast Cancer Patients ◽  
The Mean ◽  
Spearman Test

BACKGROUND: AGR2 expression is associated with luminal breast cancer. Overexpression of AGR2 is a predictor of poor prognosis. Several studies have found correlations between AGR2 in disseminated tumor cells (DTCs) in breast cancer patients. OBJECTIVE: This study aims to determine the correlation between anterior Gradient2 (AGR2) expression with the incidence of distant metastases in luminal breast cancer. METHODS: This study was an observational study using a cross-sectional method and was conducted at Wahidin Sudirohusodo Hospital and the network. ELISA methods examine AGR2 expression from blood serum of breast cancer patients. To compare the AGR2 expression in metastatic patients and the non-metastatic patient was tested with Mann Whitney test. The correlation of AGR2 expression and metastasis was tested with the Rank Spearman test. RESULTS: The mean value of AGR2 antibody expression on ELISA in this study was 2.90 ± 1.82 ng/dl, and its cut-off point was 2.1 ng/dl. Based on this cut-off point value, 14 subjects (66.7%) had overexpression of AGR2 serum ELISA, and 7 subjects (33.3%) had not. The mean value AGR2 was significantly higher in metastatic than not metastatic, 3.77 versus 1.76 (p < 0.01). The Spearman rank test obtained a p-value for the 2 tail test of 0.003 (p < 0.05), which showed a significant correlation of both, while the correlation coefficient of 0.612 showed a strong positive correlation of AGR2 overexpression and metastasis. CONCLUSIONS: AGR2 expression is correlated with metastasis in Luminal breast cancer.

scholarly journals Pattern of symptom improvement following endoscopic sinus surgery for chronic rhinosinusitis

BMC Surgery ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Salma S. Al Sharhan ◽  
Mohammed H. Al Bar ◽  
Shahad Y. Assiri ◽  
Assayl R. AlOtiabi ◽  
Deemah M. Bin-Nooh ◽  
...  
Keyword(s):  
Surgical Outcomes ◽  
Endoscopic Sinus Surgery ◽  
T Test ◽  
Sinus Surgery ◽  
Symptom Improvement ◽  
P Value ◽  
Psychological Dysfunction ◽  
Significant Difference ◽  
The Mean ◽  
Snot 22

Abstract Background Chronic rhinosinusitis (CRS) is a common inflammation of the nose and the paranasal sinuses. Intractable CRS cases are generally treated with endoscopic sinus surgery (ESS). Although the effect of ESS on CRS symptoms has been studied, the pattern of symptom improvement after ESS for CRS is yet to be investigated. The aim of this study was to determine the magnitude and sequence of symptom improvement after ESS for CRS, and to assess the possible preoperative factors that predict surgical outcomes in CRS patients. Methods This was a longitudinal prospective study of 68 patients who had CRS (with or without nasal polyps). The patients underwent ESS at King Fahd Hospital of the University, Al Khobar, Saudi Arabia. The Sino-nasal Outcome Test-22 (SNOT-22) questionnaire was used for assessment at four time points during the study: pre-ESS, 1-week post-ESS, 4 weeks post-ESS, and 6 months post-ESS. Results The difference between the mean scores recorded for the five SNOT-22 domains pre-ESS and 6 months post-ESS were as follows: rhinologic symptoms (t-test = 7.22, p-value =  < 0.001); extra-nasal rhinologic symptoms (t-test = 4.87, p-value =  < 0.001); ear/facial symptoms (t-test = 6.34, p-value =  < 0.001); psychological dysfunction (t-test = 1.99, p-value = 0.049); and sleep dysfunction (t-test = 5.58, p-value =  < 0.001). There was a significant difference between the mean scores recorded for the five domains pre-ESS and 6 months post-ESS. Rhinologic symptoms had the largest effect size (d = 1.12), whereas psychological dysfunction had the least effect size (d = 0.24). The only statistically significant difference in the SNOT-22 mean scores recorded 4 weeks post-ESS was observed between allergic and non-allergic patients (t = − 2.16, df = 66, p = 0.035). Conclusion Understanding the pattern of symptom improvement following ESS for CRS will facilitate patient counselling and aid the optimization of the current treatment protocols to maximize surgical outcomes and quality of life. Level of evidence Prospective observational.

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