TABLE 1

Sociodemographic characteristics.

 n = 276(%)Mean(SD)High-performing group (n = 187)Low-performing group (n = 89)
 n(%)Mean(SD)n(%)Mean(SD)
Age (years)  45.2(10.2)  45.1(10.1)  45.4(10.4)
Sex
  Male178(64.5)  113(60.4)  65(73.0)  
  Female98(35.5)  74(39.6)  24(27.0)  
  Other0(0.0)  0(0.0)  0(0.0)  
Educational years
  ≤1241(14.9)  29(15.5)  12(13.5)  
  13–16181(65.6)  121(64.7)  60(67.4)  
  ≥1754(19.6)  37(19.8)  17(19.1)  
Marital status
  Married (including living with common-law partner)193(69.9)  132(70.6)  61(68.5)  
  Single (including divorced and widowed)83(30.1)  55(29.4)  28(31.5)  
Employment status
  Full-time worker230(83.3)  154(82.4)  76(85.4)  
  Part-time worker46(16.7)  33(17.6)  13(14.6)  
Employment position
  Manager77(27.9)  53(28.3)  24(27.0)  
  Nonmanager199(72.1)  134(71.7)  65(73.0)  
Sleep difficulties (AIS)
  ≥6117(57.6)  59(31.6)  58(65.2)  
  ≤5159(68.4)  128(68.4)  31(34.8)  
Physical disease treatment status
  Under treatment65(23.6)  47(25.1)  18(20.2)  
  Not treated211(76.4)  140(74.9)  71(79.8)  
Mental illness treatment status
  Under treatment16(5.8)  5(2.7)  11(12.4)  
  Not treated260(94.2)  182(97.3)  78(87.6)  
Depression tendency (K6)
  ≥5124(44.9)  65(34.8)  30(66.3)  
  ≤4152(55.1)  122(65.2)  59(33.7)  
ADHD tendency (ASRS v.1.1 part A)
  +35(12.7)  16(8.6)  19(21.3)  
  −241(87.3)  171(91.4)  70(78.7)  
Autistic traits (AQ-J)
  ≥718(6.5)  9(4.8)  9(10.1)  
  ≤6258(93.5)  178(95.2)  80(89.9)  
Resilience (RS-14)  65.3(14.7)  68.8(12.5)  58.0(16.4)
QOL (WHOQOL 26)  3.3(0.6)  3.2(0.8)  2.8(0.8)
Cognitive functioning (THINC-it®)
  Spotter (ms)  554.93(135.8)  543.5(123.6)  578.9(156.6)
  Symbol check (number)  28.717(10.0)  29.4(9.9)  27.3(10.2)
  Codebreaker (number)  60.812(15.2)  60.7(14.6)  61.2(16.6)
  Trails (s)  26(11.7)  25.9(10.9)  26.3(13.4)
  PDQ-5D (point)  4.13(2.9)  3.9(2.7)  4.6(3.2)
Spotter (ms)
  Low (344.73–485.62)92(33.3)  69(36.9)  23(25.8)  
  Moderate (485.63–595.38)91(33.0)  62(33.2)  29(32.6)  
  High (595.39–1490.00)93(33.7)  56(29.9)  37(41.6)  
Symbol check (number)
  Low (0–26)95(34.4)  61(32.6)  34(38.2)  
  Moderate (27–35)91(33.0)  57(30.5)  34(38.2)  
  High (36–40)90(32.6)  69(36.9)  21(23.6)  
Codebreaker (number)
  Low (3–56)94(34.1)  59(31.6)  35(39.3)  
  Moderate (57–67)91(33.0)  70(37.4)  21(23.6)  
  High (58–108)91(33.0)  58(31.0)  33(37.1)  
Trails (s)
  Low (11.05–20.47)92(33.3)  64(34.2)  28(31.5)  
  Moderate (20.48–27.37)92(33.3)  61(32.6)  31(34.8)  
  High (27.38–103.07)92(33.3)  62(33.2)  30(33.7)  
PDQ-5D (points)
  Low (0–3)123(44.6)  86(46.0)  37(41.6)  
  Moderate (4–5)69(25.0)  45(24.1)  24(27.0)  
  High (5–15)84(30.4)  56(29.9)  28(31.5)  
 n = 276(%)Mean(SD)High-performing group (n = 187)Low-performing group (n = 89)
 n(%)Mean(SD)n(%)Mean(SD)
Age (years)  45.2(10.2)  45.1(10.1)  45.4(10.4)
Sex
  Male178(64.5)  113(60.4)  65(73.0)  
  Female98(35.5)  74(39.6)  24(27.0)  
  Other0(0.0)  0(0.0)  0(0.0)  
Educational years
  ≤1241(14.9)  29(15.5)  12(13.5)  
  13–16181(65.6)  121(64.7)  60(67.4)  
  ≥1754(19.6)  37(19.8)  17(19.1)  
Marital status
  Married (including living with common-law partner)193(69.9)  132(70.6)  61(68.5)  
  Single (including divorced and widowed)83(30.1)  55(29.4)  28(31.5)  
Employment status
  Full-time worker230(83.3)  154(82.4)  76(85.4)  
  Part-time worker46(16.7)  33(17.6)  13(14.6)  
Employment position
  Manager77(27.9)  53(28.3)  24(27.0)  
  Nonmanager199(72.1)  134(71.7)  65(73.0)  
Sleep difficulties (AIS)
  ≥6117(57.6)  59(31.6)  58(65.2)  
  ≤5159(68.4)  128(68.4)  31(34.8)  
Physical disease treatment status
  Under treatment65(23.6)  47(25.1)  18(20.2)  
  Not treated211(76.4)  140(74.9)  71(79.8)  
Mental illness treatment status
  Under treatment16(5.8)  5(2.7)  11(12.4)  
  Not treated260(94.2)  182(97.3)  78(87.6)  
Depression tendency (K6)
  ≥5124(44.9)  65(34.8)  30(66.3)  
  ≤4152(55.1)  122(65.2)  59(33.7)  
ADHD tendency (ASRS v.1.1 part A)
  +35(12.7)  16(8.6)  19(21.3)  
  −241(87.3)  171(91.4)  70(78.7)  
Autistic traits (AQ-J)
  ≥718(6.5)  9(4.8)  9(10.1)  
  ≤6258(93.5)  178(95.2)  80(89.9)  
Resilience (RS-14)  65.3(14.7)  68.8(12.5)  58.0(16.4)
QOL (WHOQOL 26)  3.3(0.6)  3.2(0.8)  2.8(0.8)
Cognitive functioning (THINC-it®)
  Spotter (ms)  554.93(135.8)  543.5(123.6)  578.9(156.6)
  Symbol check (number)  28.717(10.0)  29.4(9.9)  27.3(10.2)
  Codebreaker (number)  60.812(15.2)  60.7(14.6)  61.2(16.6)
  Trails (s)  26(11.7)  25.9(10.9)  26.3(13.4)
  PDQ-5D (point)  4.13(2.9)  3.9(2.7)  4.6(3.2)
Spotter (ms)
  Low (344.73–485.62)92(33.3)  69(36.9)  23(25.8)  
  Moderate (485.63–595.38)91(33.0)  62(33.2)  29(32.6)  
  High (595.39–1490.00)93(33.7)  56(29.9)  37(41.6)  
Symbol check (number)
  Low (0–26)95(34.4)  61(32.6)  34(38.2)  
  Moderate (27–35)91(33.0)  57(30.5)  34(38.2)  
  High (36–40)90(32.6)  69(36.9)  21(23.6)  
Codebreaker (number)
  Low (3–56)94(34.1)  59(31.6)  35(39.3)  
  Moderate (57–67)91(33.0)  70(37.4)  21(23.6)  
  High (58–108)91(33.0)  58(31.0)  33(37.1)  
Trails (s)
  Low (11.05–20.47)92(33.3)  64(34.2)  28(31.5)  
  Moderate (20.48–27.37)92(33.3)  61(32.6)  31(34.8)  
  High (27.38–103.07)92(33.3)  62(33.2)  30(33.7)  
PDQ-5D (points)
  Low (0–3)123(44.6)  86(46.0)  37(41.6)  
  Moderate (4–5)69(25.0)  45(24.1)  24(27.0)  
  High (5–15)84(30.4)  56(29.9)  28(31.5)  

Note: Spotter (Choice Reaction Time) = mean latency for correct response. Symbol check (N-back) = total number of correct responses. Codebreaker (Digit Symbol Substitution Test) = total number of correct responses. Trails (Trail Making Test) = total time taken for completion. PDQ-5D (Perceived Deficits Questionnaire for Depression-5 item) = total score (points).

Abbreviations: ADHD, attention deficit hyperactivity disorder; AIS, Athens Insomnia Scale; AQ-J, Autism-Spectrum Quotient-Japanese version; ASRS, Adult ADHD Self-Report Scale v.1.1 part A; K6, Kessler Psychological Distress Scale; QOL, quality of life; SD, standard deviation.

TABLE 1

Sociodemographic characteristics.

 n = 276(%)Mean(SD)High-performing group (n = 187)Low-performing group (n = 89)
 n(%)Mean(SD)n(%)Mean(SD)
Age (years)  45.2(10.2)  45.1(10.1)  45.4(10.4)
Sex
  Male178(64.5)  113(60.4)  65(73.0)  
  Female98(35.5)  74(39.6)  24(27.0)  
  Other0(0.0)  0(0.0)  0(0.0)  
Educational years
  ≤1241(14.9)  29(15.5)  12(13.5)  
  13–16181(65.6)  121(64.7)  60(67.4)  
  ≥1754(19.6)  37(19.8)  17(19.1)  
Marital status
  Married (including living with common-law partner)193(69.9)  132(70.6)  61(68.5)  
  Single (including divorced and widowed)83(30.1)  55(29.4)  28(31.5)  
Employment status
  Full-time worker230(83.3)  154(82.4)  76(85.4)  
  Part-time worker46(16.7)  33(17.6)  13(14.6)  
Employment position
  Manager77(27.9)  53(28.3)  24(27.0)  
  Nonmanager199(72.1)  134(71.7)  65(73.0)  
Sleep difficulties (AIS)
  ≥6117(57.6)  59(31.6)  58(65.2)  
  ≤5159(68.4)  128(68.4)  31(34.8)  
Physical disease treatment status
  Under treatment65(23.6)  47(25.1)  18(20.2)  
  Not treated211(76.4)  140(74.9)  71(79.8)  
Mental illness treatment status
  Under treatment16(5.8)  5(2.7)  11(12.4)  
  Not treated260(94.2)  182(97.3)  78(87.6)  
Depression tendency (K6)
  ≥5124(44.9)  65(34.8)  30(66.3)  
  ≤4152(55.1)  122(65.2)  59(33.7)  
ADHD tendency (ASRS v.1.1 part A)
  +35(12.7)  16(8.6)  19(21.3)  
  −241(87.3)  171(91.4)  70(78.7)  
Autistic traits (AQ-J)
  ≥718(6.5)  9(4.8)  9(10.1)  
  ≤6258(93.5)  178(95.2)  80(89.9)  
Resilience (RS-14)  65.3(14.7)  68.8(12.5)  58.0(16.4)
QOL (WHOQOL 26)  3.3(0.6)  3.2(0.8)  2.8(0.8)
Cognitive functioning (THINC-it®)
  Spotter (ms)  554.93(135.8)  543.5(123.6)  578.9(156.6)
  Symbol check (number)  28.717(10.0)  29.4(9.9)  27.3(10.2)
  Codebreaker (number)  60.812(15.2)  60.7(14.6)  61.2(16.6)
  Trails (s)  26(11.7)  25.9(10.9)  26.3(13.4)
  PDQ-5D (point)  4.13(2.9)  3.9(2.7)  4.6(3.2)
Spotter (ms)
  Low (344.73–485.62)92(33.3)  69(36.9)  23(25.8)  
  Moderate (485.63–595.38)91(33.0)  62(33.2)  29(32.6)  
  High (595.39–1490.00)93(33.7)  56(29.9)  37(41.6)  
Symbol check (number)
  Low (0–26)95(34.4)  61(32.6)  34(38.2)  
  Moderate (27–35)91(33.0)  57(30.5)  34(38.2)  
  High (36–40)90(32.6)  69(36.9)  21(23.6)  
Codebreaker (number)
  Low (3–56)94(34.1)  59(31.6)  35(39.3)  
  Moderate (57–67)91(33.0)  70(37.4)  21(23.6)  
  High (58–108)91(33.0)  58(31.0)  33(37.1)  
Trails (s)
  Low (11.05–20.47)92(33.3)  64(34.2)  28(31.5)  
  Moderate (20.48–27.37)92(33.3)  61(32.6)  31(34.8)  
  High (27.38–103.07)92(33.3)  62(33.2)  30(33.7)  
PDQ-5D (points)
  Low (0–3)123(44.6)  86(46.0)  37(41.6)  
  Moderate (4–5)69(25.0)  45(24.1)  24(27.0)  
  High (5–15)84(30.4)  56(29.9)  28(31.5)  
 n = 276(%)Mean(SD)High-performing group (n = 187)Low-performing group (n = 89)
 n(%)Mean(SD)n(%)Mean(SD)
Age (years)  45.2(10.2)  45.1(10.1)  45.4(10.4)
Sex
  Male178(64.5)  113(60.4)  65(73.0)  
  Female98(35.5)  74(39.6)  24(27.0)  
  Other0(0.0)  0(0.0)  0(0.0)  
Educational years
  ≤1241(14.9)  29(15.5)  12(13.5)  
  13–16181(65.6)  121(64.7)  60(67.4)  
  ≥1754(19.6)  37(19.8)  17(19.1)  
Marital status
  Married (including living with common-law partner)193(69.9)  132(70.6)  61(68.5)  
  Single (including divorced and widowed)83(30.1)  55(29.4)  28(31.5)  
Employment status
  Full-time worker230(83.3)  154(82.4)  76(85.4)  
  Part-time worker46(16.7)  33(17.6)  13(14.6)  
Employment position
  Manager77(27.9)  53(28.3)  24(27.0)  
  Nonmanager199(72.1)  134(71.7)  65(73.0)  
Sleep difficulties (AIS)
  ≥6117(57.6)  59(31.6)  58(65.2)  
  ≤5159(68.4)  128(68.4)  31(34.8)  
Physical disease treatment status
  Under treatment65(23.6)  47(25.1)  18(20.2)  
  Not treated211(76.4)  140(74.9)  71(79.8)  
Mental illness treatment status
  Under treatment16(5.8)  5(2.7)  11(12.4)  
  Not treated260(94.2)  182(97.3)  78(87.6)  
Depression tendency (K6)
  ≥5124(44.9)  65(34.8)  30(66.3)  
  ≤4152(55.1)  122(65.2)  59(33.7)  
ADHD tendency (ASRS v.1.1 part A)
  +35(12.7)  16(8.6)  19(21.3)  
  −241(87.3)  171(91.4)  70(78.7)  
Autistic traits (AQ-J)
  ≥718(6.5)  9(4.8)  9(10.1)  
  ≤6258(93.5)  178(95.2)  80(89.9)  
Resilience (RS-14)  65.3(14.7)  68.8(12.5)  58.0(16.4)
QOL (WHOQOL 26)  3.3(0.6)  3.2(0.8)  2.8(0.8)
Cognitive functioning (THINC-it®)
  Spotter (ms)  554.93(135.8)  543.5(123.6)  578.9(156.6)
  Symbol check (number)  28.717(10.0)  29.4(9.9)  27.3(10.2)
  Codebreaker (number)  60.812(15.2)  60.7(14.6)  61.2(16.6)
  Trails (s)  26(11.7)  25.9(10.9)  26.3(13.4)
  PDQ-5D (point)  4.13(2.9)  3.9(2.7)  4.6(3.2)
Spotter (ms)
  Low (344.73–485.62)92(33.3)  69(36.9)  23(25.8)  
  Moderate (485.63–595.38)91(33.0)  62(33.2)  29(32.6)  
  High (595.39–1490.00)93(33.7)  56(29.9)  37(41.6)  
Symbol check (number)
  Low (0–26)95(34.4)  61(32.6)  34(38.2)  
  Moderate (27–35)91(33.0)  57(30.5)  34(38.2)  
  High (36–40)90(32.6)  69(36.9)  21(23.6)  
Codebreaker (number)
  Low (3–56)94(34.1)  59(31.6)  35(39.3)  
  Moderate (57–67)91(33.0)  70(37.4)  21(23.6)  
  High (58–108)91(33.0)  58(31.0)  33(37.1)  
Trails (s)
  Low (11.05–20.47)92(33.3)  64(34.2)  28(31.5)  
  Moderate (20.48–27.37)92(33.3)  61(32.6)  31(34.8)  
  High (27.38–103.07)92(33.3)  62(33.2)  30(33.7)  
PDQ-5D (points)
  Low (0–3)123(44.6)  86(46.0)  37(41.6)  
  Moderate (4–5)69(25.0)  45(24.1)  24(27.0)  
  High (5–15)84(30.4)  56(29.9)  28(31.5)  

Note: Spotter (Choice Reaction Time) = mean latency for correct response. Symbol check (N-back) = total number of correct responses. Codebreaker (Digit Symbol Substitution Test) = total number of correct responses. Trails (Trail Making Test) = total time taken for completion. PDQ-5D (Perceived Deficits Questionnaire for Depression-5 item) = total score (points).

Abbreviations: ADHD, attention deficit hyperactivity disorder; AIS, Athens Insomnia Scale; AQ-J, Autism-Spectrum Quotient-Japanese version; ASRS, Adult ADHD Self-Report Scale v.1.1 part A; K6, Kessler Psychological Distress Scale; QOL, quality of life; SD, standard deviation.

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