Birth type

Demographic data

Term

Preterm

Result

Parental age:

mean (SD)

mean (SD)

Mother

28.22 ± 4.54

27.6 ± 6.25

p = 0.53 (t-test)

Father

32.83 ± 4.83

31.78 ± 6.22

p = 0.23 (t-test)

Parental education:(High school)

N/(%)

Mother

42 (51.2)

36 (43.9)

p = 0.88 (Mann-Whitney U)

Father

24 (29.3)

54 (65.9)

p < 0.001 (Mann-Whitney U)

Parental job:

N/(%)

Mother(housewife)

69 (84.1)

69 (84.1)

p = 1 (Chi-Square test)

Father (self-employed)

57 (69.5)

64 (78)

p = 0.21 (Chi-Square test)

Family’s income level (self-employed)/N/(%)

34 (41.5)

38 (46.3)

p = 0.056 (Mann-Whitney U)

Mother’s marriage mean age (SD)

20.63 ± 3.4

20.23 ± 3.6

p = 0.46 (t-test)