Table 3 Relationship between number of boys and parental mortality controlling for parental demographics including marital status

Year

0.97 (0.966-0.97)

0.99 (0.99-0.99)

Age

1.11 (1.11-1.12)

1.09 (1.09-1.10)

Education

Compulsory education

1

1

Some secondary education

0.79 (0.78-0.81)

0.76 (0.75-0.78)

Completed secondary education

0.69 (0.67-0.70)

0.49 (0.47-0.52)

Some higher education

0.57 (0.55-0.58)

0.55 (0.53-0.57)

Master’s degree or higher

0.46 (0.44-0.48)

0.46 (0.42-0.51)

Marital status

Married

1

1

Never married

2.05 (1.95-2.14)

1.48 (1.40- 1.58)

Widowed

1.65 (1.57-1.73)

1.38 (1.33-1.43)

Divorced

2.16 (2.12-2.20)

1.63 (1.59-1.67)

Number of children

1

1

1

2

0.78 (0.76-0.80)

0.75 (0.73-0.78)

3

0.74 (0.72-0.76)

0.68 (0.66-0.71)

4

0.76 (0.73-0.79)

0.67 (0.64-0.70)

5

0.75 (0.71-0.79)

0.66 (0.64-0.70)

Age at first birth

Below 19

1.27 (1.13-1.34)

1.26 (1.22-1.31)

20-22

1.15 (1.12-1.18)

1.08 (1.05-1.11)

23-25

1

1

26-29

0.92 (0.90-0.94)

0.98 (0.95-1.01)

30-34

0.87 (0.85-0.90)

0.96 (0.92-1.01)

Above 35

0.76 (0.73-0.79)

0.82 (0.99-0.88)

Children’s sex composition

Number of boys

0.99 (0.99-1.01)

1.00 (0.99-1.02)