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. 2015 Aug 5;12:99. doi: 10.1186/s12966-015-0261-x

Table 2.

Confidence in using eight cooking techniques, National Diet & Nutrition Survey, 2008–09, n = 509

Variable & level Boiling, % (95 % CI) Steaming, poaching, % (95 % CI) Frying, % (95 % CI) Stir frying, % (95 % CI) Grilling, % (95 % CI) Oven-baking, roasting, % (95 % CI) Stewing, braising, casseroling, % (95 % CI) Microwaving, % (95 % CI)
All respondents 93.1 (90.0–95.2) 75.0 (70.4–79.0) 88.2 (84.8–90.9) 74.4 (70.0–78.4) 90.6 (87.3–93.1) 90.0 (86.4–92.7) 76.0 (71.4–80.1) 83.1 (79.3–86.4)
Gender
 Men 89.7 (84.2–93.4) 67.3 (60.0–73.9) 90.0 (84.2–93.2) 69.7 (62.6–75.9) 87.7 (82.1–91.8) 81.9 (75.3–87.0) 81.9 (75.8–86.8) 81.9 (75.8–86.8)
 Women 96.3 (92.6–98.2) 82.3 (76.9–86.7) 86.8 (82.1–90.4) 79.0 (73.4–83.7) 93.4 (89.4–96.0) 97.7 (95.1–98.9) 84.2 (79.2–88.2) 84.2 (79.2–88.2)
Age (years)
 19–34 92.2 (85.7–95.9) 59.6 (49.3–69.0) 89.0 (82.1–93.4) 72.5 (63.1–80.3) 87.1 (79.1–92.3) 88.8 (80.5–93.8) 59.8 (49.6–69.3) 89.4 (82.0–94.0)
 35–49 94.5 (99.1–97.5) 86.5 (79.0–91.6) 88.3 (81.5–92.8) 83.3 (75.5–88.9) 94.8 (88.9–97.6) 96.7 (92.1–98.7) 82.0 (73.9–88.0) 81.3 (73.8–87.0)
 50–64 93.0 (84.2–97.0) 78.2 (69.2–85.2) 86.6 (78.5–91.9) 74.5 (65.2–82.0) 92.5 (84.8–96.5) 88.7 (79.8–94.0) 84.1 (75.5–90.1) 82.2 (73.7–88.5)
 > 64 92.4 (84.1–96.5) 76.6 (66.7–84.3) 88.7 (80.1–93.9) 64.8 (54.1–74.2) 87.6 (78.9–93.0) 83.8 (74.0–90.4) 80.6 (70.7–87.7) 77.8 (68.0–85.3)
NS-SEC
 Managerial & prof. 93.3 (88.3–96.3) 78.6 (71.4–84.3) 90.4 (85.3–93.8) 81.0 (74.4–86.3) 93.8 (89.2–96.6) 92.0 (86.3–95.5) 76.4 (69.0–82.4) 86.9 (81.3–90.9)
 Intermediate 96.0 (88.3–98.7) 86.1 (76.2–92.3) 91.5 (84.1–95.6) 82.1 (72.9–88.7) 94.6 (87.7–97.7) 94.9 (86.8–98.1) 89.9 (80.5–95.1) 84.6 (76.1–90.4)
 Routine & manual 91.1 (85.0–94.9) 64.9 (57.1–72.0) 84.0 (77.4–88.9) 63.1 (55.3–70.3) 85.1 (78.2–90.0) 85.0 (78.1–90.0) 67.9 (59.9–74.9) 78.3 (71.1–84.2)
Respondent is main food provider
 No 85.7 (77.9–91.1) 63.2 (53.7–71.9) 89.7 (82.4–94.1) 69.8 (70.6–77.6) 88.2 (80.3–93.2) 79.2 (70.4–85.9) 58.7 (49.1–67.6) 87.5 (79.9–92.5)
 Yes 96.6 (93.7–98.2) 80.6 (75.8–84.6) 87.4 (83.4–90.6) 76.7 (71.6–81.1) 91.8 (88.3–94.3) 95.1 (92.1–97.0) 84.4 (79.9–88.1) 81.0 (76.3–84.9)

CI confidence intervals, NS-SEC National Statistics socio-economic classification