Table 1 Characteristics of participants and households that were included in the overall analysis compared with those who were excluded
Included | Excluded | p* | |||||
|---|---|---|---|---|---|---|---|
N | Mean | SD | N | Mean | SD | ||
Mothers’ age | 325 | 38.1 | 5.3 | 531 | 36.8 | 5.6 | 0.002 |
Mothers’ BMI | 325 | 25.1 | 4.5 | 540 | 25.0 | 4.5 | 0.598 |
Fathers’ age | 309 | 40.0 | 5.7 | 236 | 39.2 | 6.2 | 0.117 |
Fathers’ BMI | 311 | 26.2 | 3.7 | 237 | 26.5 | 4.1 | 0.423 |
Household IMDa | 325 | 12.6 | 10.0 | 846 | 15.9 | 13.7 | <0.001 |
Number of TVs in household | 325 | 2.2 | 1.2 | 741 | 2.4 | 1.2 | 0.004 |
Number of DVDs in household | 325 | 1.5 | 0.91 | 741 | 1.6 | 0.98 | 0.014 |
Number of Digital TV recorders | 325 | 0.94 | 0.68 | 741 | 0.98 | 0.77 | 0.361 |
Number of music players | 325 | 2.6 | 1.8 | 741 | 2.2 | 1.6 | <0.001 |
Number of desktop PCs | 325 | 0.60 | 0.65 | 741 | 0.51 | 0.65 | 0.045 |
Number of laptops | 325 | 1.3 | 0.83 | 741 | 1.2 | 0.83 | 0.072 |
Number of tablets | 325 | 0.55 | 0.81 | 741 | 0.48 | 0.69 | 0.141 |
Number of games consoles | 325 | 1.1 | 0.91 | 741 | 1.2 | 0.89 | 0.184 |
Number of smartphones | 325 | 1.5 | 1.0 | 741 | 1.4 | 1.0 | 0.169 |
Number of handheld consoles | 325 | 1.1 | 1.1 | 741 | 1.2 | 1.1 | 0.555 |
Total number of TV items | 325 | 4.6 | 2.2 | 741 | 5.0 | 2.5 | 0.007 |
Total number of computers | 325 | 2.4 | 1.5 | 741 | 2.2 | 1.3 | 0.003 |
Total number of games consoles | 325 | 2.2 | 1.8 | 741 | 2.3 | 1.7 | 0.193 |
Total number of SV devices | 325 | 13.3 | 5.3 | 741 | 13.0 | 5.4 | 0.409 |
Mothers’ sedentary time (min) weekdays | 290 | 545.0 | 86.6 | 576 | 511.7 | 90.3 | <0.001 |
Fathers’ sedentary time (min) weekdays | 290 | 572.3 | 104.7 | 223 | 566.6 | 98.9 | 0.528 |
Mothers’ sedentary time (min) weekend | 301 | 507.9 | 94.7 | 530 | 469.1 | 95.6 | <0.001 |
Fathers’ sedentary time (min) weekend | 301 | 525.3 | 93.8 | 219 | 506.2 | 96.5 | 0.024 |