Table 1 Unadjusted comparison of sodium in standard fish & chip meals from shops using 5 vs 17-holed salt shakers
|  | Mean (SD) weight (g) | Mean (SD) sodium (mg) | Mean sodium in 5HSS as % of 17HSS | Unadjusted regression analysis of 5HSS compared to 17HSS; β (95 % CI) | ||
|---|---|---|---|---|---|---|
All (n = 61) | 17HSS (n = 32) | 5HSS (n = 29) | ||||
Total sodium | ||||||
 Fish | 161.9 (40.3) | 357.1 (156.1) | 352.2 (162.7) | 362.4 (151.1) | 102.9 | 10.2 (−70.5 to 90.9) |
 Chips | 437.7 (101.8) | 460.5 (296.7) | 526.6 (366.4) | 387.5 (171.6) | 73.6 | −139.1 (−288.2 to 10.1) |
 Batter | 122.2 (37.9) | 329.8 (171.5) | 355.9 (192.8) | 300.9 (142.1) | 84.5 | −55.0 (−142.6 to 32.5) |
 Meal | 724.4 (145.2) | 1147.3 (423.7) | 1234.8 (493.9) | 1050.9 (310.3) | 85.1 | −183.9 (−397.8 to 30.1) |
Sodium per 100Â g | ||||||
 Fish | NA | 227.9 (95.4) | 231.2 (91.0) | 224.1 (101.6) | 96.9 | 4.2 (−45.8 to 54.1) |
 Chips | NA | 107.8 (64.4) | 127.5 (77.0) | 86.1 (37.2) | 67.5 | −40.7 (−73.6 to −7.8)* |
 Batter | NA | 270.0 (107.8) | 288.3 (125.4) | 249.9 (81.8) | 86.7 | −53,2 (−109.6 to 3.1) |
 Meal | NA | 163.2 (59.3) | 182.0 (68.3) | 142.5 (39.0) | 78.3 | −37.0 (−66.0 to −8.1)* |