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Table 2 Comparative analysis of media use and lifestyle

From: Combined influence of media use on subjective health in elementary school children in Japan: a population-based study

  Game TV PC
less than 1 hr more than 1 hr less than 1 hr more than 1 hr less than 1 hr more than 1 hr
Bedtime
−21:00 91 13* 57 43* 99 4*
21:00–22:00 817 118 409 511 892 30
22:00–23:00 964 227 366 808 1090 84
23:00–24:00 210 80 66 217 250 37
24:00- 22 24 10 35 33 11
Irregular 633 226 278 564 782 58
Total 2737 688 1186 2178 3146 224
Waking time
−6:00 191 30* 97 119* 202 15*
6:00–7:00 1327 287 580 1003 1490 98
7:00–8:00 944 265 379 814 1116 74
8:00- 33 15 15 32 38 8
Irregular 234 90 114 202 295 27
Total 2729 687 1185 2170 3141 222
Good feeling on waking
Usually 727 115* 356 468* 784 41*
Often 1450 316 568 1170 1637 108
Occasionally 432 183 207 400 551 52
Seldom 89 56 38 102 127 16
Total 2698 670 1169 2140 3099 217
Breakfast eating
Everyday 2455 554* 1069 1886* 2783 180*
Often 194 64 74 179 229 21
Occasionally 58 42 24 74 87 13
Seldom 21 23 8 34 33 10
Total 2728 683 1175 2173 3132 224
Eating breakfast alone
Usually 353 107* 130 321* 408 41*
Often 440 107 175 361 494 41
Occasionally 471 154 212 408 570 54
Seldom 1457 310 658 1075 1655 85
Total 2721 678 1175 2165 3127 221
Dinner time
−18:00 101 24 60 63* 114 10
18:00–19:00 730 188 342 562 855 46
19:00–20:00 1383 332 564 1119 1577 112
20:00–21:00 440 114 185 358 500 44
21:00- 54 21 26 50 69 7
Total 2708 679 1177 2152 3115 219
Eating dinner alone
Usually 68 23 31 59 78 12*
Often 235 65 93 202 278 21
Occasionally 425 127 180 364 494 49
Seldom 1980 460 867 1528 2261 138
Total 2708 675 1171 2153 3111 220
Learning time at home
none 78 42* 44 72 103 15*
up to 30 min 776 211 358 599 901 63
30–60 min 1264 282 528 1000 1444 83
1–2 hrs 491 120 198 406 554 50
2 hrs- 110 29 50 88 124 11
Total 2719 684 1178 2165 3126 222
Reading at home
Usually 341 55* 172 218* 364 30
Often 1140 212 494 831 1245 80
Occasionally 755 221 328 634 907 55
Seldom 492 195 186 487 618 58
Total 2728 683 1180 2170 3134 223
  1. Values are head-counts. TV: television, PC: personal computer.
  2. *p<0.05for chi-square test.