Open Access

Validity, reliability, and sensitivity to change of the Thai version of the Migraine-Specific Quality of Life Questionnaire version 2.1


Cite

Figure 1

Flow diagram for recruitment of participants to test for concurrent validity, test–retest reliability, and internal consistency of the Thai version of the Migraine-Specific Quality of life Questionnaire version 2.1; QoL, quality of life
Flow diagram for recruitment of participants to test for concurrent validity, test–retest reliability, and internal consistency of the Thai version of the Migraine-Specific Quality of life Questionnaire version 2.1; QoL, quality of life

Figure 2

Flow diagram for recruitment of participants to test for sensitivity of the Thai version of the Migraine-Specific Quality of Life Questionnaire version 2.1 to change
Flow diagram for recruitment of participants to test for sensitivity of the Thai version of the Migraine-Specific Quality of Life Questionnaire version 2.1 to change

Baseline characteristics of the 30 eligible participants

CharacteristicValue
Age, years (SD)42.4 (13)
Female sex, n (%)29 (97)
Educational level

Based on UNESCO’s International Standard Classification of Education 1997

, n (%)
 Primary education8 (27)
 Upper secondary education3 (10)
 Postsecondary nontertiary education5 (17)
 First and second stage of tertiary education14 (47)
Classification of migraine, n (%)
 Migraine without aura27 (90)
 Migraine with aura3 (10)
Duration of having migraine (years)
 Median5.3
 Interquartile range8.0
Average pain duration per attack (hours)
 Median3.8
 Interquartile range4.0
Average pain severity, n (%)
 Mild1 (3)
 Moderate23 (77)
 Severe6 (20)
Associated symptoms level

Counted more than once

, n (%)
 Nausea19 (63)
 Photophobia17 (57)
 Phonophobia15 (50)
 Vomiting13 (43)

Baseline characteristics of the 11 participants for clinical testing

CharacteristicValue
Age, years (SD)39.6 (14.7)
Female sex, n (%)10 (91)
Educational level, n (%)
 Primary education2 (18)
 Upper secondary education3 (27)
 Postsecondary nontertiary education5 (46)
 First stage of tertiary education1 (9)
Occupation, n (%)
 Employee7 (64)
 Studying3 (27)
 Business1 (9)
Duration of having migraine, years
 Median3.0
 Interquartile range8.0

Comparison of the change in the history of headache between 2 periods of 4 weeks and the score change in the Thai version of the MSQv2.1

Headache historyTime zero (0)Week 4 (4)Week 8 (8)P (week 4 and time zero)P (week 8 and time zero)P (weeks 8 and 4)
Frequency of attacks 4 weeks before (episodes)
 Median12.08.02.00.750.180.06
 Interquartile range12.018.011.0
Average pain duration per attack, hours
 Median3.01.51.01.000.002

P < 0.01

0.02

P < 0.05

 Interquartile range3.510.52.0
Average pain severity score (NRS)
 Median6.05.05.00.04

P < 0.05

0.341.00
 Interquartile range1.54.06.0
Headache severity, n (%)
 Mild6 (55)9 (82)11 (100)0.380.060.50
 Moderate or severe5 (45)2 (18)0 (0)
Location of pain

Counted more than once

, n (%)
 Ocular8 (73)7 (64)3 (27)1.000.090.19
 Back of neck6 (55)3 (27)1 (9)0.380.060.58
 Forehead2 (18)0 (0)2 (18)NA1.00NA
 Temple10 (91)8 (73)8 (73)0.580.581.00
 Occiput8 (73)5 (45)5 (45)0.380.361.00
 Vertex2 (18)0 (0)0 (0)NANANA
 Whole head5 (45)2 (18)1 (9)0.360.141.00
Side

Counted more than once

, n (%)
 Unilateral, constant2 (18)6 (55)4 (36)0.100.630.66
 Bilateral5 (45)5 (45)2 (18)1.000.360.36
 Unilateral with alternating6 (55)2 (18)3 (27)0.100.361.00
 Unilateral and then bilateral2 (18)0 (0)0 (0)NANANA
Pain quality

Counted more than once

, n (%)
 Dull aching/pressing4 (36)4 (36)2 (18)1.000.630.63
 Throbbing9 (82)6 (55)6 (55)0.360.361.00
 Sharp or stabbing1 (9)0 (0)3 (27)NA0.58NA
Associated symptoms

Counted more than once

, n (%)
 Nausea/vomiting9 (82)2 (18)1 (9)0.010.0021.00
 Photophobia/phonophobia10 (91)2 (18)3 (27)0.0020.0071.00
Precipitating factors, n (%)
 No2 (18)2 (45)5 (45)1.000.360.36
Taking acute pain medication, n (%)
 Yes11 (100)11 (100)10 (91)NANANA
Type of acute pain medication, n (%)
 Simple analgesic/NSAIDs10 (91)10 (91)10 (91)1.001.001.00
 Migraine-specific medication1 (9)1 (9)1 (9)1.00NANA
Effect of acute pain medication, n (%)
 Pain improvement8 (73)9 (82)9 (82)1.001.001.00
Adverse effect of acute pain medication, n (%)
 Yes2 (18)0 (0)0 (0)NANANA
Taking prophylactic medication, n (%)
 Yes3 (27)10 (91)11 (100)0.007NANA
Type of prophylactic medication, n (%)
 Antiepileptic drugs1 (9)7 (64)7 (64)0.020.021.00
 Calcium antagonists2 (18)1 (9)1 (9)1.001.001.00
 Antidepressants0 (0)2 (18)3 (27)NANA1.00
Adverse effect of prophylactic medication, n (%)
 Yes0 (0)2 (18)1 (9)NANA1.00
Adverse effect of both acute pain and prophylactic medications, n (%)
 Yes2 (18)2 (18)1 (9)1.001.001.00
RR – median score (interquartile range)48.6 (28.6)85.7 (22.9)85.7 (20.0)0.020.0020.06
RP – median score (interquartile range)70.0 (25.0)95.0 (15.0)100.0 (15.0)0.020.0021.00
EF – median score (interquartile range)73.3 (38.0)86.7 (20.0)93.3 (20.0)0.220.121.00
Overall score of MSQv2.1 – median score (interquartile range)62.9 (27.1)88.6 (18.6)88.6 (18.6)0.020.0010.11

History of headache 4 weeks before completion of the first and second questionnaires

Headache information/score of Thai version of the MSQv2.1First questionnaireSecond questionnaireP
Frequency of attacks 4 weeks before (episodes)
 Median4.04.0NS
 Interquartile range7.27.0
Average pain duration per attack (hours)
 Median2.02.0NS
 Interquartile range3.62.9
Average pain severity score (NRS)
 Median4.55.0NS
 Interquartile range4.05.2
No. of associated symptoms, n (%)15.0 (50)16.0 (53)NS
Headache severity, n (%)
 Mild22 (73)20 (67)NS
 Moderate or severe8 (27)10 (33)

Clinical testing for sensitivity of the Thai version of the MSQv2.1 to change of the headache history between 2 periods of 4 weeks

History of headacheCorrelation coefficient for median improvement
RRRPEFOverall QoL
Between week 4 and time zero
 Median reduction in frequency of attacks 4 weeks before−0.32−0.23−0.22−0.24
 Median reduction in average pain duration per attack, hours−0.130.400.070.12
 Median reduction in average pain severity score (NRS)0.240.16−0.330.16
 Improvement in associated symptoms with nausea/vomiting to no nausea/vomiting−0.12−0.180.31−0.09
 Improvement in associated symptoms with photophobia/phonophobia to no photophobia/phonophobia0.320.090.270.29
 Change in proportion to take prophylactic medications0.24−0.210.25−0.21
 Improvement in headache severity from moderate to severe to mild0.71

P < 0.05

0.77

P < 0.01

0.400.77

P < 0.01

Between week 8 and time zero
 Median reduction in frequency of attacks 4 weeks before0.150.20−0.210.15
 Median reduction in average pain duration per attack, hours0.02−0.21−0.59−0.12
 Median reduction in average pain severity score (NRS)0.340.170.010.28
 Improvement in associated symptoms with nausea/vomiting to no nausea/vomiting0.330.13−0.160.25
 Improvement in associated symptoms with photophobia/phonophobia to no photophobia/phonophobia0.000.24−0.240.06
 Change in proportion to take prophylactic medications−0.45−0.260.66

P < 0.05

−0.38
 Improvement in headache severity from moderate to severe to mild0.71

P < 0.05

0.520.290.77

P < 0.01

Between weeks 8 and 4
 Median reduction in frequency of attacks 4 weeks before0.07−0.15−0.61

P < 0.05

−0.12
 Median reduction in average pain duration per attack, hours0.070.57−0.020.11
 Median reduction in average pain severity score (NRS)−0.39−0.50−0.35−0.62

P < 0.05

 Improvement in associated symptoms with nausea/vomiting to no nausea/vomiting0.150.150.030.22
 Improvement in associated symptoms with photophobia/phonophobia to no photophobia/phonophobia0.20−0.050.400.30
 Change in proportion to take prophylactic medications−0.50−0.300.20−0.40
 Improvement in headache severity from moderate to severe to mild0.590.69

P < 0.05

0.260.67

P < 0.05

Score of each item and domain of the Thai version of the MSQv2.1 between the first and second questionnaires

Score of Thai version of the MSQ 2.1First questionnaireSecond questionnairer

Spearman’s correlation coefficient

P
RR – median score (interquartile range)
 Item 1 family interfered with how well you dealt with family, friends, and others3.5 (2.2)4.0 (2.0)0.68<0.001
 Item 2 leisure interfered with your leisure time activities, such as reading and exercising3.0 (3.0)4.0 (2.0)0.580.001
 Item 3 activity – had difficulty in performing work or daily activities4.0 (2.2)4.0 (2.0)0.77<0.001
 Item 4 work – kept you from getting as much done at work or at home4.0 (2.0)3.5 (2.0)0.66<0.001
 Item 5 concentration – limited your ability to concentrate on work or daily activities3.5 (3.0)4.0 (2.2)0.61<0.001
 Item 6 tired – left you too tired to do work or daily activities3.0 (2.3)4.0 (2.0)0.71<0.001
 Item 7 energy – limited the number of days you have felt energetic3.0 (2.2)4.0 (2.0)0.72<0.001
RR dimension scores (rescale to 0–100) – median (interquartile range)71.4 (39.2)77.1 (23.6)0.83<0.001
RP – median score (interquartile range)
 Item 8 cancel – cancel work or daily activities4.0 (2.0)4.0 (3.0)0.65<0.001
 Item 9 help – need help in handling routine tasks5.0 (1.0)4.0 (1.0)0.60<0.001
 Item 10 stop – stop work or daily activities4.0 (2.0)4.0 (2.0)0.62<0.001
 Item 11 social – not able to go to social activities4.0 (2.0)4.5 (2.0)0.66<0.001
RP dimension scores (rescale to 0–100) – median (interquartile range)87.5 (35.0)80.0 (35.0)0.76<0.001
EF – median score (interquartile range)
 Item 12 frustrated – felt fed up or frustrated3.5 (3.0)4.0 (2.0)0.68<0.001
 Item 13 burden – felt like you were a burden on others5.0 (2.0)4.0 (1.0)0.68<0.001
 Item 14 afraid – afraid of letting others down5.0 (1.0)5.0 (1.0)0.560.001
EF dimension scores (rescale to 0–100) – median (interquartile range)80.0 (30.0)83.3 (21.6)0.65<0.001
Overall QoL score (rescale to 0–100) – median (interquartile range)76.7 (29.3)80.0 (24.6)0.83<0.001

Concurrent validity of the Thai version of MSQv2.1 score with the migraine characteristics 4 weeks before completion of the first questionnaire

Migraine characteristicThai version of the MSQv2.1 score
RRRPEFOverall QoL
Frequency of attacks 4 weeks before (episodes)−0.42

P < 0.05

−0.41

P < 0.05

−0.39

P < 0.05

−0.50

P < 0.05

Average pain duration per attack (hours)−0.47

P < 0.05

−0.34−0.48

P < 0.05

−0.48

P < 0.05

Average pain severity score (NRS)−0.58

P < 0.05

−0.53

P < 0.05

−0.50

P < 0.05

−0.62

P < 0.05

No. of associated symptoms0.240.350.290.30
Mild degree of headache severity−0.27−0.43

P < 0.05

−0.50

P < 0.05

−0.42

P < 0.05

eISSN:
1875-855X
Language:
English
Publication timeframe:
6 times per year
Journal Subjects:
Medicine, Assistive Professions, Nursing, Basic Medical Science, other, Clinical Medicine