Skip to main content

Table 1 Variable introduction and description statistics (N = 9701)

From: Early life adversity and health inequality: a dual interaction model

Variable Measurement Mean value Standard deviation Minimum value Maximum value
Self-rated health The answers of “not good” and “very bad” are assigned to 1, and the answers of “excellent”, “very good,” “good,” and “general” are assigned to 0 0.255 0.436 0 1
The types of early life adversities
 1 type Experienced 1 type of adversity 0.315 0.465 0 1
 2 types Experienced 2 types of adversity 0.162 0.369 0 1
 3 types Experienced 3 types of adversity 0.072 0.259 0 1
 ≥ 4 types Experienced 4 or more types of adversity 0.031 0.173 0 1
Duration of starvation in early life
 1 period 1 period of starvation 0.354 0.478 0 1
 2 periods 2 periods of starvation 0.161 0.368 0 1
 3 periods 3 periods of starvation 0.190 0.392 0 1
Gender Male = 1, female = 0 0.477 0.500 0 1
Age Choose age between 40-80 59.29 8.381 40 80
Marriage Married = 1, not married = 0 0.893 0.309 0 1
Whether mother lived a long life Mother’s age > =70s 1, < 70s 0 0.742 0.438 0 1
Father literacy Literacy = 1, illiteracy = 0 0.460 0.498 0 1
Mother literacy Literacy = 1, illiteracy = 0 0.136 0.343 0 1
Birthplace Urban = 1, rural = 0 0.081 0.273 0 1
Father’s occupation Manager or technician = 1, ordinary worker = 0 0.165 0.371 0 1
Number of siblings Size of the original family; assign 12 people or more to 12 4.053 1.897 0 12
Serious illness in early life Whether seriously sick for over 1 month before the age of 15 0.053 0.223 0 1
Self-rated early life heath Poor self-rated health = 1, average, good = 0 0.048 0.214 0 1
Education Years of education 5.549 4.163 0 19
Occupation Non-agricultural employment = 1, farmer = 0 0.491 0.500 0 1
Attribute of residence Rural assigned to 0, central village district assigned to 1, the special district assigned to 2, rural-town fringe zone assigned to 3, central town district assigned to 4, rural-urban fringe zone assigned to 5, and main urban zone assigned to 6 1.654 2.241 0 6
Relative economic status Compared with the neighborhood, self-rated economic status 2.637 0.829 1 5
Disability Whether respondent is disabled 0.237 0.425 0 1
Depressed mode Using CED-10 depression self-rating scale 7.821 5.761 0 30