Table 2.
Vitamin A content of refined oil samples collected from households in Yaoundé and Douala 1.
| Yaoundé | Douala | Total | |||||
|---|---|---|---|---|---|---|---|
| n | Mean (95% CI) | n | Mean (95% CI) | n | Mean (95% CI) | ||
| Detectable VA, % | |||||||
| “Brand name” oil | 28 | 81.4 (65.7–97.1) | 39 | 71.8 (56.4–87.2) | 67 | 75.6 (64.8–86.3) | |
| “Bulk” oil | 62 | 40.6 (28.4–52.8) | 53 | 10.1 (0.6–19.6) | 115 | 26.1 (18.1–34.1) | |
| Overall2 | 96 | 54.0 (44.0–63.9) | 96 | 34.9 (21.5–48.4) | 192 | 44.1 (36.1–52.2) | |
| Average VA concentration, among samples with VA, µg RE/g | |||||||
| “Brand name” oil | 23 | 13.8 (11.7–16.0) | 26 | 12.1 (10.7–13.6) | 49 | 12.9 (11.6–14.1) | |
| “Bulk” oil | 25 | 9.9 (8.4–11.3) | 5 | 8.3 (3.2–13.4) | 30 | 9.6 (8.1–11.0) 3 | |
| Overall 2 | 52 | 11.5 (9.9–13.0) | 31 | 11.5 (10.1–12.9) | 83 | 11.5 (10.5–12.5) | |
1 All oil samples were collected from households. Results exclude 5 samples reported to be cottonseed or soybean oil because the instrument for vitamin A measurement was not validated for use with these oils at the time of the survey. 2 Includes 10 oil samples (4 of which contained vitamin A) for which the oil brand was “other” or not known. 3 Different from mean VA content of “Brand name” oil samples, P = 0.002.