Table 2 Proportional hazard model on the determinants of time to first birth for the significant socioeconomic and demographic covariates, BDHS 2017–18

Place of residence

Rural

1.25

(1.21,1.28)

1.05

(1.01,1.10)

Urban

Ref.

Ref.

Religion

Muslim

1.29

(1.24,1.34)

1.00

(0.95,1.05)

Non-Muslim

Ref.

Ref.

Region

Barishal

1.32

(1.25,1.39)

1.08

(1.00,1.17)

Chattogram

1.30

(1.24,1.36)

1.24

(1.16,1.32)

Dhaka

1.16

(1.10,1.21)

1.04

(0.97,1.11)

Khulna

1.35

(1.29,1.42)

1.01

(0.94,1.10)

Mymensingh

1.33

(1.26,1.40)

0.94

(0.86,1.03)

Rajshahi

1.44

(1.37,1.52)

1.06

(0.98,1.14)

Rangpur

1.50

(1.43,1.59)

1.14

(1.06,1.24)

Sylhet

Ref.

Ref.

Mother’s current age (years)

Less than 30

1.20

(1.16,1.24)

1.72

(1.57,1.88)

30–39

1.05

(1.01,1.10)

1.29

(1.19,1.40)

40 + 

Ref.

Ref.

Age at marriage (Years)

 < 15

5.20

(4.91,5.50)

5.08

(4.78,5.40)

15–17

2.51

(2.42,2.59)

2.37

(2.29,2.45)

18+ 

Ref.

Ref.

Age at first sex (Years)

 < 15

4.88

(4.60,5.17)

4.87

(4.57,5.19)

15–17

2.46

(2.38,2.54)

2.35

(2.27,2.43)

18+ 

Ref.

Ref.

Respondent’s education

No education

2.27

(2.15,2.39)

1.28

(1.17,1.40)

Primary

2.40

(2.30,2.50)

1.38

(1.30,1.47)

Secondary

2.08

(2.00,2.16)

1.29

(1.23,1.35)

Higher secondary or above

Ref.

Ref

Husband’s current age (Years)

Less than 40

1.02

(0.98,1.06)

0.93

(0.85,1.02)

40–49

0.96

(0.92,1.00)

1.01

(0.93,1.09)

50 + 

Ref.

Ref.

Husband’s education

No education

1.98

(1.89,2.08)

1.15

(1.06,1.25)

Primary

1.95

(1.86,2.03)

1.18

(1.10,1.26)

Secondary

1.68

(1.61,1.75)

1.14

(1.08,1.21)

Higher

Ref

Ref.

Respondent’s employment status

Yes

1.13

(1.10,1.16)

1.05

(1.01,1.10)

No

Ref.

Ref.

Wealth index

Poorest

1.61

(1.54,1.69)

0.96

(0.89,1.04)

Poorer

1.56

(1.49,1.62)

0.96

(0.90,1.03)

Middle

1.47

(1.4,1.53)

0.97

(0.91,1.04)

Richer

1.31

(1.25,1.37)

0.96

(0.90,1.01)

Richest

Ref.

Ref.

Use of contraception

User

1.07

(1.04,1.10)

1.18

(1.13,1.23)

Non-user

Ref.

Ref.

Mass media exposure

No

1.95

(1.68,2.27)

1.27

(1.10,1.47)

Yes

Ref.

Ref.

Husband’s occupation

Professional/technical/managerial

0.56

(0.52,0.60)

0.91

(0.78,1.06)

Sales

0.93

(0.87,0.99)

0.95

(0.82,1.11)

Agricultural—self-employed

1.12

(1.04,1.21)

0.93

(0.79,1.10)

Agricultural—employee

1.10

(1.03,1.17)

0.98

(0.84,1.14)

Services

0.97

(0.91,1.04)

0.94

(0.80,1.09)

Skilled manual

0.99

(0.93,1.05)

0.96

(0.82,1.11)

Others

0.94

(0.76,1.16)

0.89

(0.67,1.19)

Did not work

Ref.

Ref.

Husband’s desire for children

Husband wants more

1.12

(1.07,1.17)

1.08

(1.01,1.15)

Husband wants fewer

1.05

(0.99,1.12)

1.02

(0.95,1.10)

Both want same

Ref.

Ref.