Table 1 Percentage distribution of the participants and average age at first birth by socioeconomic and demographic characteristics
Background characteristics | Overall | Age at first birth (years) | p value of Log-rank test | |
|---|---|---|---|---|
No. of women | Percentage | Mean (SE) | ||
Overall | 18,134 | 100.0 | 18.2 (0.024) | Â |
Place of residence | ||||
 Urban | 6595 | 36.37 | 18.70 (0.045) |  < 0.001 |
 Rural | 11,539 | 63.63 | 17.86 (0.028) |  |
Religion | ||||
 Muslim | 16,299 | 89.88 | 18.05 (0.025) |  < 0.001 |
 Non-Muslim | 1835 | 10.12 | 19.17 (0.081) |  |
Administrative region | ||||
 Barishal | 1952 | 10.76 | 18.11 (0.074) |  < 0.001 |
 Chattogram | 2622 | 14.46 | 18.11 (0.057) |  |
 Dhaka | 2623 | 14.46 | 18.54 (0.069) |  |
 Khulna | 2358 | 13 | 18.00 (0.068) |  |
 Mymensingh | 1948 | 10.74 | 18.03 (0.075) |  |
 Rajshahi | 2327 | 12.83 | 17.71 (0.066) |  |
 Rangpur | 2288 | 12.62 | 17.66 (0.068) |  |
 Sylhet | 2016 | 11.12 | 19.24 (0.076) |  |
Mother’s current age (years) | ||||
 Mean (SD) | 32.66 (8.78) |  |  |  |
 < 30 | 7266 | 40.07 | 17.86 (0.031) |  < 0.001 |
 30–39 | 6276 | 34.61 | 18.31 (0.045) |  |
 40 or more | 4592 | 25.32 | 18.45 (0.056) |  |
Age at marriage (Years) | ||||
 < 15 | 6025 | 33.38 | 15.85 (0.030) |  < 0.001 |
 15–17 | 7658 | 42.43 | 17.97 (0.024) |  |
 18 or more | 4365 | 24.19 | 21.73 (0.046) |  |
Age at first sex (years) | ||||
 < 15 | 5620 | 31 | 15.81 (0.032) |  < 0.001 |
 15–17 | 7723 | 42.6 | 17.82 (0.024) |  |
 18 or above | 4787 | 26.4 | 21.47 (0.045) |  |
Respondent’s education | ||||
 No education | 3084 | 17.01 | 17.49 (0.057) |  < 0.001 |
 Primary | 6001 | 33.09 | 17.44 (0.037) |  |
 Secondary | 6865 | 37.86 | 18.02 (0.034) |  |
 Higher | 2184 | 12.04 | 21.56 (0.082) |  |
Husband’s current age (years) | ||||
 Mean (SD) | 40.85 (10.73) |  |  |  |
 < 40 | 7986 | 46.87 | 18.12 (0.033) |  < 0.001 |
 40–49 | 4855 | 28.49 | 18.39 (0.052) |  |
 50 or more | 4198 | 24.64 | 18.10 (0.054) |  |
Husband’s education | ||||
 No education | 3828 | 22.45 | 17.43 (0.048) |  < 0.001 |
 Primary | 5450 | 31.96 | 17.54 (0.038) |  |
 Secondary | 4918 | 28.84 | 18.14 (0.042) |  |
 Higher | 2818 | 16.53 | 20.54 (0.075) |  |
Respondent’s employment status | ||||
 Non-employment | 9082 | 50.08 | 18.44 (0.035) |  < 0.001 |
 Employment | 9052 | 49.92 | 17.89 (0.034) |  |
Wealth index | ||||
 Poorest | 3537 | 19.5 | 17.43 (0.048) |  < 0.001 |
 Poorer | 3494 | 19.27 | 17.62 (0.047) |  |
 Middle | 3528 | 19.46 | 17.77 (0.051) |  |
 Richer | 3635 | 20.05 | 18.25 (0.054) |  |
 Richest | 3940 | 21.73 | 19.58 (0.061) |  |
Use of contraception | ||||
 Non-user | 6769 | 37.33 | 18.30 (0.042) |  < 0.001 |
 User | 11,365 | 62.67 | 18.08 (0.03) |  |
Mass media exposure | ||||
 No | 18,032 | 99.44 | 18.14 (0.024) |  < 0.001 |
 Yes | 101 | 0.56 | 21.90 (0.455) |  |
Husband’s occupation | ||||
 Did not work | 1,459 | 8.05 | 17.89 (0.088) |  < 0.001 |
 Professional/technical/managerial | 1,436 | 7.93 | 20.85 (0.114) |  |
 Sales | 3,242 | 17.89 | 18.24 (0.057) |  |
 Agricultural—self-employed | 1,563 | 8.63 | 17.55 (0.074) |  |
 Agricultural—employee | 2,762 | 15.24 | 17.59 (0.056) |  |
 Services | 1,903 | 10.5 | 18.02 (0.068) |  |
 Skilled manual | 5,683 | 31.37 | 18.01 (0.040) |  |
 Others | 70 | 0.39 | 18.07 (0.456) |  |
Husband’s desire for children | ||||
 Both want same | 12,486 | 78.24 | 18.31 (0.030) |  < 0.001 |
 Husband wants more | 1910 | 11.97 | 17.86 (0.074) |  |
 Husband wants fewer | 1019 | 6.39 | 18.12 (0.102) |  |
 Don't know | 544 | 3.41 | 17.82 (0.141) |  |