Table 2 Characteristics of study sample
From: Delaying first birth: an analysis of household survey data from rural Southern Tanzania
Background characteristics | All women 13–49 years (N = 3578) | Sexually active (married and unmarried) women 13–49 years included in the analysis (N = 2128) | ||
|---|---|---|---|---|
n | % (95% CI) | n | % (95% CI) | |
Age groups (yrs) | ||||
 13–14 | 205 | 6 (5–7) | 10 | <1 (0–1) |
 15–19 | 529 | 15 (14–16) | 182 | 9 (7–10) |
 20–24 | 491 | 14 (12–15) | 297 | 14 (12–16) |
 25–29 | 466 | 13 (12–14) | 312 | 15 (13–17) |
 30–34 | 527 | 15 (13–16) | 355 | 17 (15–18) |
 35–39 | 519 | 15 (13–16) | 344 | 16 (15–18) |
 40–44 | 504 | 14 (13–15) | 361 | 17 (16–19) |
 45–49 | 337 | 9 (8–11) | 267 | 13 (11–14) |
Median age | ||||
 Median | 3578 | 30 (IQR 21–39) | 2128 | 33 (IQR 25–41) |
Marital status | ||||
 Currently married | 2344 | 66 (64–67) | 1713 | 80 (79–82) |
 Cohabiting | 82 | 2 (2–3) | 59 | 3 (2–4) |
 Divorced/separated | 439 | 12 (11–13) | 212 | 10 (9–11) |
 Widow | 22 | 1 (0–1) | 4 | <1 (0–0) |
 Single | 691 | 19 (18–21) | 140 | 7 (6–8) |
Education | ||||
 No education | 463 | 13 (11–15) | 286 | 13 (12–16) |
 Some primary | 474 | 13 (12–15) | 243 | 11 (10–13) |
 Completed primary | 604 | 73 (70–75) | 1574 | 74 (72–77) |
 Some secondary or higher | 30 | 1 (0–2) | 20 | 1 (0–2) |
Religion | ||||
 Muslim | 3459 | 97 (95–98) | 2054 | 97 (95–98) |
 Others | 119 | 3 (2–5) | 74 | 3 (2–5) |
Ethnicity | ||||
 Makonde | 3338 | 93 (91–95) | 1965 | 92 (90–94) |
 Others | 238 | 7 (5–9) | 162 | 8 (6–10) |
Household socio-economic status | ||||
 Q1 (most poor) | 420 | 12 (10–13) | 306 | 10 (8–11) |
 Q2 | 586 | 16 (15–18) | 334 | 16 (14–18) |
 Q3 | 692 | 19 (18–21) | 414 | 19 (18–21) |
 Q4 | 914 | 26 (23–28) | 5611 | 26 (24–29) |
 Q5 (least poor) | 966 | 27 (24–30) | 613 | 29 (26–32) |
Parity | ||||
 Mean parity | 3578 | 3 births (range 0–11) | 2128 | 3 births (range 0–11) |
Total | 3578 | 100 | 2128 | 59 |