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UC FYP GP 152 Jackie Hanna Charlie Eric A study on the relationships among SLEEPING PATTERN, SLEEPING QUALITY & MENTAL STRESS of CUHK students.

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Presentation on theme: "UC FYP GP 152 Jackie Hanna Charlie Eric A study on the relationships among SLEEPING PATTERN, SLEEPING QUALITY & MENTAL STRESS of CUHK students."— Presentation transcript:

1 UC FYP GP 152 Jackie Hanna Charlie Eric A study on the relationships among SLEEPING PATTERN, SLEEPING QUALITY & MENTAL STRESS of CUHK students

2 VIDEO Our Motivation Narrator: Eric INTRODUCTION

3 1.Following sleeping pattern can maximize our sleeping quality  Everyone has his or her “natural” sleeping pattern (morningness and eveningness)  Melatonin is produced(sleeping signal) 2.Sleeping quality and stress level are interrelated.  Sleep quality of life in clinical medicine 3.Given hypothesis 1 and 2, following sleeping pattern could reduce mental stress. HYPOTHESES

4 Sleeping pattern Sleeping quality Mental stress HYPOTHESES H1 H3 H2

5 1.Morningness and Eveningness Questionnaire (MEQ) 2.Pittsburgh Sleep Quality Index (PSQI) 3.Mental Stress Test (MST) BACKGROUND

6  Made by Horne and Ostberg (1976)  19 questions(MC with scenario)  Measures the period of peak sleepiness and alertness  Score:16-86  16-41: Morning-type(21:30-22:45)  42-58: Middle-type(22:45-00:45)  59-86: Evening-type(00:45-03:00)  Suggested Bedtime(Estimated time of melatonin production) 1.MORNINGNESS AND EVENINGNESS QUESTIONNAIRE(MEQ) BACKGROUND

7  Made by Sleep Medicine Institute, University of Pittsburgh  18 questions(including bedtime, wake up time, difficulties during sleeping, actual sleeping length)  Different questions have different weighting and scoring method  Score:0-21  <=7:good sleeping quality  >7: poor sleeping quality 2. PITTSBURGH SLEEPING QUALITY INDEX(PSQI) BACKGROUND

8  By CUHK student counseling and development services( 學生輔 導發展組 )  Lists of 14 symptom due to stress(e.g. loss of appetite, anxiety)  Good State (0-5)  Acceptable (6-10)  Stressed (11-14) 3.MENTAL STRESS TEST BACKGROUND

9 1.Questionnaire 2.Case study METHODOLOGY

10 QUESTIONNAIRE Basic Information Distribution Period15 September to 27 October, 2012 RespondentLocal and Mainland students at CUHK (both undergraduates and postgraduates) No. of Collected332 No. of Valid308 Effective Rate93% METHODOLOGY

11 CASE STUDY METHODOLOGY Basic Information Period30 October to 5 November, 2012 Respondent14

12 DATA SUMMARY

13

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15 3.Analysis on Relationship among the Three Components Pattern vs QualityQuality vs StressPattern vs Stress 2.Comparison among Different Subgroups Study YearFacultyRegionResidentSex 1.Overall Evaluation for All CU Students Pattern ResultsQuality ResultsMental Stress Results DATA ANALYSIS

16 SLEEPING PATTERN (MEQ RESULTS)  The number of Middle Type is the largest and very small number of Morning Type.  For the matching situation, the Evening Type is the best and Morningness is the worst. DATA ANALYSIS

17 SLEEPING QUALITY(PSQI RESULTS) Best Worst  The range for PSQI index is from 0 to 21.  7 is the Warning Level of sleeping quality for young people.  CU students average result is 6.3, which is below the warning level. DATA ANALYSIS

18 MENTAL STRESS (STRESS TEST RESULTS) Best Worst CU Students Average Stress Level  Stress Levels: Good State(0-5) Acceptable(6-10) Stressed(11-14)  The average score of CU students is 4.2, which belongs to the first range.  The result indicates that CU students have good a control of stress and generally in a good state of mind. DATA ANALYSIS

19 COMPARISON AMONG SUBGROUPS Subgroup Sleeping Pattern (Matching) Sleeping QualityStress Level Study YearNo Major difference Lower study year students have poorer sleeping quality No Major difference Major Different majors have different matching situation Different majors have different sleeping quality Different majors have different stress level Resident Residents have better matching situation Residents have poorer sleeping quality Residents have higher stress level RegionNo Major difference Mainland students have higher stress level SexNo Major difference DATA ANALYSIS

20 LOWER STUDY YEAR STUDENTS HAVE POORER SLEEPING QUALITY Regression Statistics Correlation-0.27 F-test23.57 P-value1.92E-06 Almost 100% confidence to say the sleeping quality index negatively correlates with study year, which means the lower year the student is in, the poorer the sleeping quality the student has. DATA ANALYSIS

21 RELATIONSHIP AMONG THE THREE COMPONENTS Sleeping Pattern Matching Stress Level Sleeping Quality The Poorer Sleeping Quality, The Higher Stress Level The Severer Mismatching, the Better Sleeping Quality No Obvious Relationship H1 H3 H2 DATA ANALYSIS

22 SLEEPING PATTERN MATCHING VS SLEEPING QUALITY Sleeping Pattern Matching Sleeping Quality Index (The Smaller, the Better) No5.83 Yes6.51 Total6.25 Sleeping Quality Index TypeNoYes Evening Middle Morning Overall The sleeping quality is better for pattern mismatching students, which contradicts with our hypothesis. The reason is the sleeping quality of people of Middle type and Morning type, who are following their sleeping patterns, is poor. Back DATA ANALYSIS

23 RELATIONSHIP AMONG THE THREE COMPONENTS Sleeping Pattern Matching Stress Level Sleeping Quality The Poorer Sleeping Quality, The Higher Stress Level The Severer Mismatching, the Better Sleeping Quality No Obvious Relationship H1 H3 H2 DATA ANALYSIS

24 Investigation for the following results: 1.Why the sleeping quality of yr1 students is the worst 2.Why hostel residents have poorer sleeping quality & higher mental stress 3.Why Morning and Middle type students following the suggested sleeping patterns have poorer sleeping quality 4.Why Mainland students have higher mental stress DATA ANALYSIS CASE STUDY

25  Interviewed 3 yr1 students: — w/ PSQI >7.00 (poor sleeping quality)  Interviewed 4 students above yr1: — w/ PSQI ~5.00 CASE A ANS:  Committee & Hostel Activities  Gathering  Adaption to U life DATA ANALYSIS Q: Why is the sleeping quality of yr1 students the worst ?

26  Interviewed 2 residents: — w/ PSQI >7 (poor sleeping quality) — w/ MST ~7 (high mental stress) Sleeping QualityMental Stress Roommate influence Dormitory Culture / Environment Activities Academic Poor time management High mental stressPoor sleeping quality ANS: DATA ANALYSIS CASE B Q:Why do hostel residents have poorer sleeping quality & higher mental stress ?

27  Interviewed 3 residents: — w/ PSQI > 8.00 (poor sleeping quality) — Morning and Middle Type — Follow the suggested sleeping pattern CASE C  Roommate influence  Hostel activities  Eveningness has not been affected ANS: DATA ANALYSIS Q:Why do Morning and Middle TYPE hostel residents following the suggested sleeping pattern have poorer sleeping quality ?

28  Interviewed 2 mainland students: — w/MST>5.00 (high mental stress) CASE D  Academic  Cultural difference  Career ANS: DATA ANALYSIS Q:Why do Mainland students have higher mental stress ?

29  Entertainment > Others (Academic / sports )  Roommate is the Boss  Sleeping Pattern is still reasonable  Sleeping Quality and Mental Stress DATA ANALYSIS SUMMARY

30 Hypotheses review Overall result Observation worth mentioning SUMMARY

31 1.Following “natural” sleeping pattern(morningness and eveningness)can maximize sleeping quality  Melatonin is produced (sleeping signal)  False, in our study. (Due to external influence) 2.Higher Stress level and sleeping quality are interrelated.  True, verified by survey data. (No clues on causality) 3.Given hypothesis 1 and 2, following sleeping pattern could reduce mental stress.  False ^ True  False (Consistent with our study ) HYPOTHESIS REVIEW

32  Overall result  Good sleeping quality & low stress level in CUHK (Avg. PSQI < 7 | Avg. MST < 5)  Observations worth mentioning  The sleeping quality increases with the study year, yr1 students are the worst  Hostel resident have poorer sleeping quality & higher mental stress  Morningness and middle group students following their natively pattern suffer poorer sleeping quality  Mainland students have higher mental stress SUMMARY

33  Sleeping pattern  Try to follow the suggested sleeping pattern  Roommate  Choose a proper roommate with similar sleeping hours  Be a considerate roommate as well  Time management  Balance the time allocated to study and entertainment  Maintain sufficient sleeping time  Extra care to mainland students  Students  CUHK SUGGESTIONS

34  Limited number of respondents  Questionnaire  Case study  Respondent distribution  Not matching with the current CU students distribution LIMITATIONS

35  https://osantd.osa.cuhk.edu.hk/scdsmain/chihtml/index.php?page=eas y_check https://osantd.osa.cuhk.edu.hk/scdsmain/chihtml/index.php?page=eas y_check  surveys.org/Dialogix/servlet/Dialogix?schedule=3&DIRECTIVE=START surveys.org/Dialogix/servlet/Dialogix?schedule=3&DIRECTIVE=START   Verster, J. C., Pandi-Perumal, S. R., Streiner, D. L. (n.d.). Sleep and Quality of Life in Clinical Medicine, Retrieved from  Roeser, K., Obergfell, F., Meule, A., Vogele, C., Schlarb, A. A., Kulber, A. (2012). Of larks and hearts — morningness/eveningness, heart rate variability and cardiovascular stress response at different times of day, Physiology and Behaviour, 106(2), , Retrieved from 49#. 49# REFERENCES

36 Q&A


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