Elderly care needs and factors influencing negative emotions among first-generation only child parents in a Chinese city

Table 3 Description of assignment

Item	Assignment
Age	60-69 years = 1, 70-79 years = 2, 80-89 years = 3, ≥ 90 years = 4
Marital status	Single = 1, married = 2, widowed = 3, divorced = 4
Living situation	Living alone = 1, living with spouse = 2, living with children = 3, other = 4
Disability	No = 0, yes = 1
Chronic disease types	None = 0, 1 type = 1, 2 types = 2, ≥ 3 types = 3
Frailty status	Healthy period = 1, pre-frailty = 2, frailty period = 3
Family support	Good = 1, mild to moderate impairment = 2, severe impairment = 3