Table 2 Descriptive characteristics of the total sample and the Internet use group before matching
Variables | Total sample (N = 7779) | Not Internet users group (N = 7273) | Internet users group (N = 506) | Between not internet users and internet users groups | |||||
|---|---|---|---|---|---|---|---|---|---|
Mean | SD | Mean | SD | Mean | SD | ΔMean | t | p | |
Depression level | 15.660 | 5.333 | 15.811 | 5.368 | 13.468 | 4.227 | 2.343*** | 9.647 | .000 |
Age | 68.181 | 6.615 | 68.359 | 6.669 | 65.600 | 5.134 | 2.759*** | 9.069 | .000 |
Physical health | 3.587 | 1.185 | 3.601 | 1.196 | 3.381 | 0.988 | .220*** | 4.032 | .000 |
Life satisfaction | 3.858 | 1.058 | 3.865 | 1.062 | 3.765 | .990 | .100* | 2.098 | .036 |
Intelligence level | 5.148 | 1.378 | 5.093 | 1.384 | 5.947 | .993 | −0.854*** | −13.560 | .000 |
|  | Percent | Percent | Percent | ΔPercent | χ2 | p | |||
=0 | =1 | =0 | =1 | =0 | =1 | =1 | |||
Gender | 49.99 | 50.01 | 50.79 | 49.21 | 38.54 | 61.46 | −12.25*** | 28.41 | .000 |
Urban or Rural | 53.16 | 46.84 | 56.07 | 43.93 | 11.26 | 88.74 | −44.81*** | 381.42 | .000 |
Marital status | 17.47 | 82.53 | 17.98 | 82.02 | 10.08 | 89.53 | −7.51*** | 20.51 | .000 |
Living condition | 93.51 | 6.49 | 93.41 | 6.59 | 94.86 | 5.14 | 1.45 | 1.63 | .201 |
Pensions | 80.36 | 19.64 | 82.79 | 17.21 | 45.45 | 54.55 | −37.34*** | 417.69 | .000 |
Education background | – | – | – | – | – | – | *** | 1200 | .000 |