Table 4.

Typology of factors.

Typology	Description	Variables
Negative factor	Improve the probability of belonging to clusters with decrease usage time.	●Higher disposal Income ●Not a house owner ●Larger number of children
Positive factor	Improve the probability of belonging to clusters with increasing usage time.	●Female ●Higher income ●Car owner
Variation factor	Improve the probability of belonging to both clusters with increasing and decreasing usage time.	●Younger in age ●Lower family income ●No children or older children ●Longer usage times in 2019