Conversely, according to the results, it seems
that more frequent in-person and landline phone communication with network members
are positively associated with mobile phone communication, suggesting that older adults
extend their communication sphere with a mobile phone in their support networks.
Finally, the results indicate that sociodemographic characteristics of older adults, such as
age, social-economic status, and living alone, significantly determine the frequency of
mobile communication with their network members, even though their magnitude varies
depending on the type of social support network.