Basic Study
Copyright ©The Author(s) 2023.
World J Neurol. May 31, 2023; 9(3): 17-27
Published online May 31, 2023. doi: 10.5316/wjn.v9.i3.17
Table 3 Differences in composite DePaul symptom questionnaire-2 symptom scores
SymptomAlcohol intolerant
Not alcohol intolerant
P value
mean (SD)
mean (SD)
Post-exertional malaise79.53 (15.46)71.99 (17.07)< 0.01
Feeling drained74.70 (21.53)67.06 (23.31)0.01
Minimum exercise78.99 (20.48)72.27 (20.62)0.01
Worse after physical activity80.83 (21.42)74.22 (21.83)0.01
Soreness77.84 (19.87)70.96 (20.40)0.01
Fatigue81.86 (15.10)77.47 (15.88)0.02
Heavy feeling83.87 (22.56)69.53 (30.82)< 0.01
Muscle fatigue76.80 (24.01)64.32 (26.03)< 0.01
Unrefreshing sleep81.52 (18.83)80.08 (20.80)0.57
Cognitive impairment61.53 (18.28)54.92 (18.39)< 0.01
Difficulty remembering68.84 (22.51)64.58 (25.17)0.14
Difficulty finding right word61.78 (23.69)54.56 (23.02)0.01
Difficulty understanding51.02 (24.93)44.14 (24.33)0.02
Absent-mindedness62.74 (24.94)57.50 (22.73)0.08
Slowness of thought60.34 (24.78)52.99 (25.70)0.02
Only focus on one thing68.96 (23.14)59.38 (24.60)< 0.01
Difficulty paying attention72.84 (23.31)66.97 (23.77)0.04
Slowed speech35.75 (27.80)29.61 (24.33)0.07
Mental tiredness71.32 (21.74)64.19 (23.55)0.01
Fever and flu37.71 (19.81)33.74 (19.55)0.1
Fever16.36 (21.41)14.71 (20.52)0.53
High temperature33.82 (26.14)29.43 (26.09)0.18
Flu-like symptoms52.84 (25.87)49.22 (27.97)0.27
Prolonged viral illness recovery38.16 (32.95)35.68 (33.88)0.55
Fluctuations in temperature47.18 (31.83)39.76 (31.38)0.06
Pain54.84 (22.94)46.30 (21.86)< 0.01
Stomach pain45.11 (28.08)36.33 (25.14)0.01
Irritable bowel51.98 (31.39)44.01 (31.88)0.04
Bloating50.79 (28.83)41.45 (25.80)0.01
Muscle pain71.45 (25.12)63.15 (29.43)0.02
Sleep disruption57.63 (23.80)51.52 (25.12)0.04
Problems staying asleep61.29 (28.62)54.04 (29.16)0.04
Waking up early52.40 (28.64)44.53 (30.07)0.03
Problems falling asleep61.29 (28.62)54.04 (29.16)0.39
Orthostatic intolerance39.99 (23.21)27.86 (22.93)< 0.01
Graying or blacking out after standing28.14 (29.39)17.63 (24.90)< 0.01
Blurred or tunnel vision after standing35.52 (31.01)25.13 (28.51)0.01
Heart beats quickly after standing50.12 (31.11)35.66 (33.37)< 0.01
Dizziness45.91 (26.21)33.85 (26.34)< 0.01
Genitourinary43.06 (26.18)36.81 (23.43)0.05
Urinary urgency41.95 (30.88)38.03 (31.99)0.31
Bladder problems36.96 (31.91)29.82 (27.29)0.05
Nighttime urinary urgency50.18 (31.51)42.37 (30.20)0.04
Temperature intolerance39.45 (22.76)28.60 (19.98)< 0.01
Chills or shivers37.38 (26.16)27.34 (24.01)< 0.01
Low temperature29.41 (28.02)17.45 (20.80)< 0.01
Cold limbs51.02 (28.65)41.02 (28.89)0.01
Other
Needing to nap daily58.74 (28.63)53.39 (30.80)0.14
Sleep inversion21.80 (30.09)16.28 (26.85)0.11
Joint pain60.33 (31.88)56.64 (30.99)0.35
Eye pain34.24 (29.25)25.52 (25.32)0.01
Chest pain28.32 (23.57)19.79 (24.24)< 0.01
Headaches53.32 (26.10)45.18 (24.69)0.01
Twitching38.28 (26.15)30.34 (24.25)0.01
Muscle weakness68.15 (25.56)57.81 (25.92)< 0.01
Sensitivity to noise64.12 (25.50)57.55 (27.95)0.04
Sensitivity to light58.53 (28.25)51.04 (29.00)0.03
Unable to focus vision41.35 (26.21)33.06 (22.82)0.01
Unable to focus attention56.63 (21.10)53.89 (20.75)0.31
Loss of depth perception31.10 (31.76)17.63 (24.22)< 0.01
Nausea39.42 (24.74)26.04 (25.76)< 0.01
Feeling unsteady49.70 (28.00)36.85 (25.48)< 0.01
Shortness of breath38.88 (27.26)35.81 (26.07)0.36
Irregular heartbeat32.91 (26.82)28.26 (26.79)0.16
Losing weight19.04 (25.04)17.34 (19.65)0.6
Gaining weight52.70 (33.53)47.58 (31.51)0.3
Loss of appetite30.37 (24.52)31.12 (25.84)0.81
Sweating hands15.99 (23.28)15.89 (24.97)0.97
Night sweats37.44 (29.32)35.55 (30.20)0.61
Feeling hot or cold53.93 (26.88)45.96 (26.93)0.02
Sore throats37.50 (25.00)32.16 (24.11)0.08
Lymph nodes39.54 (28.82)34.08 (27.50)0.12
Sensitivity to smells53.43 (30.68)37.50 (30.99)< 0.01
Sensitivity to mold29.89 (37.74)21.45 (29.94)0.04
Temperature intolerance72.52 (26.97)55.60 (31.93)< 0.01
Worse after mental activity66.41 (24.31)59.87 (28.53)0.06
Feeling disoriented40.44 (25.23)33.68 (23.36)0.03
Difficulty reading50.96 (32.42)39.34 (30.89)< 0.01
Eye aching40.44 (29.61)30.66 (28.47)0.01
Sensitivity to pain53.50 (31.78)44.35 (36.19)0.04
Pain from pressure27.00 (34.21)24.87 (33.73)0.62
Daytime drowsiness64.24 (26.74)60.53 (27.85)0.27
Sensitivity to vibrations36.34 (35.50)21.68 (31.39)< 0.01
Poor coordination51.68 (28.56)38.42 (25.08)< 0.01
Sinus infections25.00 (28.84)23.68 (25.36)0.69
Upright position intolerance51.98 (32.87)44.08 (32.86)0.05