| | Variable | Total sample | Mainland Tanzania | Zanzibar | value | | (%) | (%) | (%) |
| | Place of residence | | | | | | Urban | 2,404 (26.33) | 1,741 (25.11) | 663 (30.16) | | | Rural | 6,727 (73.70) | 5,192 (74.89) | 1,535 (69.84) | <0.0001 | | Wealth index | | | | | | Poorest | 1,449 (15.90) | 1,324 (19.10) | 125 (5.70) | | | Poorer | 1,642 (18.00) | 1,406 (20.30) | 236 (10.70) | | | Middle | 1,680 (18.40) | 1,384 (20.00) | 296 (13.50) | | | Richer | 2,078 (22.80) | 1,406 (20.3) | 672 (30.60) | | | Richest | 2,282 (25.00) | 1,413 (20.4) | 869 (39.50) | <0.0001 | | Education level | | | | | | No education | 1,646 (18.00) | 1,296 (18.7) | 350 (15.90) | | | Primary | 5,252 (57.50) | 4,636 (66.90) | 616 (28.00) | | | Secondary and higher | 2,226 (24.40) | 995 (14.40) | 1,231 (56.00) | <0.0001 | | Marital status | | | | | | Never married | 2,661 (29.10) | 1,808 (26.10) | 853 (38.80) | | | Divorced/widowed | 983 (10.80) | 783 (11.30) | 200 (9.10) | | | Married/cohabiting | 5,440 (59.60) | 4,299 (62.00) | 1,141 (51.90) | <0.0001 | | Age (years) | | | | | | 15–19 | 2,069 (22.70) | 1,485 (21.40) | 584 (26.60) | | | 20–29 | 2,983 (32.70) | 2,284 (32.90) | 699 (31.80) | | | 30–39 | 2,368 (25.90) | 1,896 (27.30) | 472 (21.50) | | | 40–49 | 1,711 (18.70) | 1,268 (18.30) | 443 (20.20) | <0.0001 | | The use of cooking oil | | | | | | No | 1,891 (20.70) | 1,084 (15.60) | 807 (36.70) | | | Yes | 7,240 (79.30) | 5,849 (84.40) | 1,391 (63.30) | <0.0001 | | Meals per day | | | | | | 1 time | 183 (2.00) | 141 (2.00) | 42 (1.90) | | | 2 times | 3,404 (37.30) | 2,565 (37.00) | 839 (38.20) | | | 3 to 4 times | 5,540 (60.70) | 4,223 (60.90) | 1,317 (59.90) | 0.602 |
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