Table 2 Cognitive outcomes by level of phone use: descriptive statistics for STROOP colour word test
Mobile phone use/ownership exposure group: Median (IQRa) | Cordless phone use exposure group: Median (IQRa) | ||||||
|---|---|---|---|---|---|---|---|
Form | Parameter | ‘None’e n = 412 | ‘Some’f n = 87 | ‘More’g n = 88 | ‘None’h n = 112 | ‘Some’i n = 255 | ‘More’j n = 208 |
A | Time (s) | 26 (24, 30) | 27 (24, 30) | 26 (23, 30) | 27 (24, 30) | 26 (24, 30) | 26 (24, 29) |
B | Time (s) | 28 (26,33) | 30 (27,34) | 28 (25, 32) | 30 (25, 34) | 28 (25. 32) | 29 (26, 33) |
C | Time (s) | 38 (33, 43) | 38 (35, 43) | 37 (32, 41) | 39 (34, 44) | 37 (32, 43) | 37 (32,42) |
D | Time (s) | 65 (55, 77) | 65 (57, 74) | 65 (56, 75) | 65 (58, 78) | 65 (55, 75) | 64 (56, 74) |
(B-A)/Ab | Time ratio | 0.10 (0.02, 0.17) | 0.10 (0.03, 0.19) | 0.08 (0.01, 0.17) | 0.09 (0.01, 0.16) | 0.09 (0.01, 0.17) | 0.11 (0.04, 0.20) |
(D-C)/Cb | Time ratio | 0.71 (0.54, 0.92) | 0.67 (0.54, 0.98) | 0.74 (0.60, 0 95) | 0.66 (0.52, 0.96) | 0.71 (0.53, 0.95) | 0.73 (0.58, 0.92) |