Demographic characteristics
| Boys | Girls | |||||
|---|---|---|---|---|---|---|
| Year 4 | Year 5 | Year 6 | Year 4 | Year 5 | Year 6 | |
| *2311 pupils without age in school register. | ||||||
| †Pupils did not attend school on either of the two survey dates. | ||||||
| ‡14 pupils did not report their age. | ||||||
| Registered pupils (17084) | 3445 | 2493 | 2628 | 3639 | 2304 | 2575 |
| Number of pupils per school | 25 | 19 | 19 | 27 | 18 | 19 |
| Median (range) | (6–86) | (3–56) | (6–58) | (3–99) | (3–53) | (4–65) |
| Age in school register (years) | 13 | 14 | 15 | 12 | 13 | 14 |
| Median (range)* | (9–19) | (10–19) | (9–22) | (9–18) | (10–18) | (11–20) |
| Survey status (17084) | n = 3445 | n = 2493 | n = 2628 | n = 3639 | n = 2304 | n = 2575 |
| Not seen† | 593 (17%) | 359 (14%) | 445 (17%) | 486 (13%) | 237 (10%) | 385 (15%) |
| Refused | 4 (0.1%) | 3 (0.1%) | 2 (0.1%) | 4 (0.1%) | 2 (0.1%) | 3 (0.1%) |
| Personal and demographic data obtained | 2848 (83%) | 2131 (85%) | 2181 (83%) | 3149 (86%) | 2065 (90%) | 2187 (85%) |
| Personal data (14561) | n = 2848 | n = 2131 | n = 2181 | n = 3149 | n = 2065 | n = 2187 |
| Reported age (years) | 14 | 15 | 16 | 13 | 14 | 15 |
| Median (range)‡ | (9–21) | (9–22) | (10–24) | (9–19) | (10–19) | (10–20) |
| Living with biological mother | 2299 (81%) | 2527 (80%) | 1638 (77%) | 1640 (79%) | 1664 (76%) | 1695 (78%) |
| Head of household is father | 2060 (72%) | 2310 (73%) | 1546 (73%) | 1517 (74%) | 1580 (72%) | 1528 (70%) |
| Eligible for study (reported date of birth before 1 Jan 1985) | 1644 (58%) | 1769 (83%) | 2084 (96%) | 1121 (36%) | 1354 (66%) | 1998 (91%) |
| Enrolled in study, demographic data (9283) | 1509 | 1671 | 1954 | 1012 | 1262 | 1875 |
| Born in the same village | 1004 (67%) | 1174 (70%) | 1323 (68%) | 651 (65%) | 860 (69%) | 1316 (71%) |
| Sukuma tribe | 1156 (77%) | 1287 (77%) | 1465 (75%) | 788 (78%) | 970 (77%) | 1421 (76%) |
| Father farmer | 1065 (71%) | 1120 (67%) | 1370 (70%) | 686 (68%) | 866 (69%) | 1234 (66%) |
| Mother farmer | 1334 (88%) | 1441 (86%) | 1746 (89%) | 868 (86%) | 1091 (87%) | 1621 (86%) |
| Christian religion | 1105 (73%) | 1245 (75%) | 1488 (76%) | 859 (85%) | 1081 (86%) | 1602 (85%) |