Table 1.
Baseline characteristics of the study participants by region within the area of the Farafenni Health and Demographic Surveillance System from 2011 to 2014 (N = 5994).
| Variable | Category | Total | West-rural | East-rural | Peri-urban | Urban |
|---|---|---|---|---|---|---|
| N = 5994 | N = 767 | N = 1882 | N = 795 | N = 2550 | ||
| Sex | Male | 3114 (52.0) | 401 (52.3) | 1015 (53.9) | 394 (49.6) | 1304 (51.2) |
| Female | 2880 (48.0) | 366 (47.7) | 867 (46.1) | 401 (50.4) | 1246 (48.8) | |
| Ethnicity | Wollof | 2807 (46.8) | 57 (7.4) | 1089 (57.9) | 531 (66.8) | 1130 (44.3) |
| Mandinka | 1710 (28.5) | 561 (73.1) | 300 (15.9) | 66 (8.3) | 783 (30.7) | |
| Fula | 1241 (20.7) | 117 (15.3) | 483 (25.7) | 187 (23.5) | 454 (17.8) | |
| Others | 236 (3.9) | 32 (4.2) | 10 (0.5) | 11 (1.4) | 183 (7.2) | |
| Season of birth | Wet (June–October) | 2933 (48.9) | 393 (51.2) | 932 (49.5) | 367 (46.2) | 1241 (48.6) |
| Dry (November–May) | 3061 (51.1) | 374 (48.8) | 950 (50.5) | 428 (53.8) | 1309 (51.4) | |
| Maternal age (years) | ≦19 | 728 (12.1) | 80 (10.4) | 246 (13.1) | 81 (10.2) | 321 (12.6) |
| 20–29 | 3035 (50.6) | 341 (44.5) | 903 (48.0) | 407 (51.2) | 1384 (54.3) | |
| ≧30– | 2232 (37.2) | 346 (45.1) | 733 (38.9) | 307 (38.6) | 845 (33.2) | |
| Year of birth | 2011 | 1334 (22.3) | 176 (22.9) | 424 (22.5) | 164 (20.6) | 570 (22.4) |
| 2012 | 1649 (27.5) | 225 (29.3) | 519 (27.6) | 221 (27.8) | 684 (26.8) | |
| 2013 | 1519 (25.3) | 183 (23.9) | 475 (25.2) | 188 (23.6) | 673 (26.4) | |
| 2014 | 1491 (24.9) | 183 (23.9) | 464 (24.7) | 222 (27.9) | 622 (24.4) | |
| Birth spacing | Less than 2 years | 644 (10.7) | 85 (11.1) | 215 (11.4) | 82 (10.3) | 263 (10.3) |
| Over 2 years | 5348 (89.2) | 682 (88.9) | 1666 (88.5) | 713 (89.7) | 2287 (89.7) | |
| Siblings (N = 5943) |
No | 1629 (27.4) | 164 (21.6) | 346 (18.4) | 188 (23.7) | 931 (36.9) |
| Yes | 4315 (72.6) | 597 (78.4) | 1521 (81.1) | 604 (76.3) | 1593 (63.1) | |
| Distance to vaccine delivery point | <1 km | 2940 (49.1) | 380 (49.5) | 1232 (65.5) | 256 (32.2) | 1072 (42.1) |
| 1–2 km | 2462 (41.1) | 228 (29.7) | 490 (26.0) | 268 (33.7) | 1476 (57.9) | |
| >2 km | 592 (9.9) | 159 (20.7) | 160 (8.5) | 271 (34.1) | 2 (0.1) | |
| Maternal education (N = 5013) |
No | 790 (15.8) | 53 (8.1) | 86 (5.3) | 122 (19.1) | 529 (25.3) |
| Koranic | 3362 (67.1) | 536 (82.2) | 1390 (85.3) | 443 (69.2) | 993 (47.5) | |
| Basic | 527 (10.5) | 49 (7.5) | 125 (7.7) | 44 (6.9) | 309 (14.8) | |
| Senior | 334 (6.7) | 14 (2.2) | 29 (1.8) | 31 (4.8) | 260 (12.4) | |
| SES index (N = 5463) |
1st poor | 1080 (19.8) | 183 (26.0) | 631 (35.9) | 230 (31.5) | 36 (1.6) |
| 2nd | 966 (17.7) | 284 (40.4) | 465 (26.5) | 174 (23.8) | 43 (1.9) | |
| 3rd | 1058 (19.4) | 131 (18.6) | 482 (27.4) | 215 (29.5) | 230 (10.1) | |
| 4th | 1118 (20.5) | 84 (11.9) | 171 (9.7) | 99 (13.6) | 764 (33.6) | |
| 5th wealthy | 1241 (22.7) | 21 (3.0) | 7 (0.4) | 12 (1.6) | 1201 (52.8) | |
| Place of birth (2014) (N = 1490) |
Own/relative's home | 600 (40.3) | 97 (53.0) | 251 (54.1) | 100 (45.1) | 152 (24.5) |
| Health centers | 268 (18.0) | 68 (37.2) | 191 (41.2) | 3 (1.4) | 6 (1.0) | |
| Hospital | 622 (41.7) | 18 (9.8) | 22 (4.7) | 119 (53.6) | 463 (74.6) | |
| Delivery assistant (2014) (N = 1490) |
Midwife | 444 (32.4) | 58 (31.7) | 140 (30.2) | 61 (27.5) | 223 (35.9) |
| TBA | 444 (29.8) | 89 (48.6) | 204 (44.0) | 80 (36.0) | 71 (11.4) | |
| Doctor | 74 (5.0) | 7 (3.8) | 10 (2.2) | 10 (4.5) | 47 (7.6) | |
| Other | 470 (31.5) | 28 (15.3) | 104 (22.4) | 68 (30.6) | 270 (43.5) | |
| None | 20 (1.3) | 1 (0.6) | 6 (1.3) | 3 (1.4) | 10 (1.6) | |