Table 4.
Descriptive statistics for cordless phone voice call use and CogHealth™ tasks [median (25th, 75th percentiles)]a
| Tests | Parameters | Baseline | Follow-up | ||
|---|---|---|---|---|---|
| CP voice calls (n) |
Median (25th, 75th percentiles) | CP voice calls (n) |
Median (25th, 75th percentiles) | ||
| Simple reaction time (Detection task) |
Response time (ms) | None (66) | 336 (306, 394) | None (76) | 326 (294, 373) |
| Some (183) | 347 (299, 404) | Some (177) | 325 (288, 357) | ||
| More (135) | 350 (307, 414) | More (123) | 309 (279, 352) | ||
| Accuracy (%) | None (67) | 95 (89, 100) | None (76) | 97 (95, 100) | |
| Some (185) | 97 (94, 100) | Some (177) | 97 (95, 100) | ||
| More (137) | 95 (87, 100 | More (123) | 97 (93, 100 | ||
| Choice reaction time (Identification task) |
Response time (ms) | None (67) | 573 (526, 662) | None (76) | 545 (496, 595) |
| Some (185) | 589 (521, 665) | Some (177) | 559 (489, 611) | ||
| More (137) | 596 (536, 685) | More (123) | 529 (476, 592) | ||
| Accuracy (%) | None (67) | 91 (85, 97) | None (76) | 94 (91, 97) | |
| Some (185) | 94 (86, 97) | Some (177) | 94 (88, 97) | ||
| More (137) | 94 (86, 97) | More (123) | 94 (88, 97) | ||
| One-back task (Working memory) |
Response time (ms) | None (67) | 958 (751, 1062) | None (76) | 883 (729, 985) |
| Some (185) | 939 (793, 1114) | Some (177) | 865 (715, 1022) | ||
| More (137) | 992 (818, 1132) | More (123) | 865 (712, 1020) | ||
| Accuracy (%) | None (67) | 89 (74, 94) | None (76) | 93 (86, 97) | |
| Some (185) | 89 (77, 94) | Some (177) | 94 (86, 97) | ||
| More (137) | 89 (74, 94) | More (123) | 91 (84, 97) | ||
| One card learning task (Visual recognition memory & attention) |
Response time (ms) | None (67) | 1015 (827, 1274) | None (76) | 1065 (940, 1345) |
| Some (185) | 1071 (887, 1312) | Some (177) | 1042 (875, 1218) | ||
| More (137) | 1150 (874, 1340) | More (123) | 1013 (862, 1224) | ||
| Accuracy (%) | None (67) | 56 (49, 65) | None (76) | 64 (56, 70) | |
| Some (185) | 60 (51, 66) | Some (177) | 65 (56, 72) | ||
| More (137) | 59 (50, 65) | More (123) | 61 (53, 69) | ||
| Go/NoGo (Response inhibition task) |
Response time (ms) | None (66) | 616 (558, 694) | None (76) | 569 (517, 656) |
| Some (185) | 633 (541, 720) | Some (177) | 580 (503, 662) | ||
| More (136) | 631 (565, 706) | More (123) | 583 (503, 689) | ||
| Accuracy (%) | None (67) | 98 (94, 98) | None (76) | 98 (96, 100) | |
| Some (185) | 98 (94, 100) | Some (177) | 98 (96, 100) | ||
| More (136) | 96 (94, 100) | More (123) | 98 (94, 100) | ||
| Groton maze learning task (Spatial & executive ability) |
Total number of errors | None (67) | 65 (55, 84) | None (76) | 56 (46, 67) |
| Some (185) | 69 (54, 80) | Some (177) | 56 (46, 68) | ||
| More (137) | 68 (55, 84) | More (123) | 58 (48, 70) | ||
a Statistics of children who took part in baseline and follow-up (n = 412)