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. 2021 Oct 24;18(21):11164. doi: 10.3390/ijerph182111164

Table 1.

Participants’ demographic information.

Variables N (%)
Gender
      male 496 (49.3)
      female 510 (50.7)
Age
      M (SD) 18.46 (0.83)
Only child
      yes 327 (32.5)
      no 647 (64.3)
      missing value 32 (3.2)
Residence
      urban 347 (34.5)
      rural 629 (62.5)
      missing value 30 (3.0)
Maternal education level
      never 64 (6.4)
      primary school 367 (36.5)
      junior high school 354 (35.2)
      senior high school 122 (12.1)
      college or above 69 (6.9)
      missing value 30 (3.0)
Socioeconomic status
      low 38 (3.8)
      below average 188 (18.7)
      average 671 (66.7)
      above average 74 (7.4)
      high 3 (0.3)
      missing value 32 (3.2)

Note: Data from the first wave.