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Table 4 Participant responses to confidence in choosing appropriate supplementation by demographic groups

From: Dietary supplement users vary in attitudes and sources of dietary supplement information in East and West geographic regions: a cross-sectional study

  Agree Neutral Disagree Don’t know Odds ratio, raw (95% CI)a Odds ratio, adjusted (95% CI)b
Geographic location (n = 631)cd       
East 123 (51.0) 58 (24.1) 17 (7.1) 43 (17.8) Ref Ref
West 165 (42.3) 112 (28.7) 70 (18.0) 43 (11.0) 0.70 (0.51, 0.97)* 0.60 (0.40, 0.89)*
Sex (n = 623)       
Male 136 (44.4) 87 (28.4) 42 (13.7) 41 (13.4) Ref Ref
Female 149 (47.0) 81 (25.6) 45 (14.2) 42 (13.3) 1.10 (0.81, 1.52) 0.98 (0.69, 1.38)
Age group (n = 593)       
21–39 84 (44.9) 64 (34.2) 20 (10.7) 19 (10.2) Ref Ref
40–59 131 (44.1) 73 (24.6) 45 (15.2) 48 (16.2) 0.97 (0.67, 1.40) 0.86 (0.58, 1.27)
60-75 70 (50.7) 28 (20.3) 22 (15.9) 18 (13.0) 1.26 (0.81, 1.96) 1.17 (0.73, 1.86)
BMI (n = 600)       
Normal weight 123 (46.6) 78 (29.6) 28 (10.6) 35 (13.3) Ref Ref
Overweight 85 (41.9) 58 (28.6) 32 (15.8) 28 (13.8) 0.83 (0.57, 1.19) 0.78 (0.53, 1.16)
Obese 80 (48.8) 34 (20.7) 27 (16.5) 23 (14.0) 1.09 (0.74, 1.61) 0.97 (0.63, 1.48)
Supplement use (n = 631)       
No 68 (48.00) 47 (27.7) 19 (11.2) 36 (21.2) Ref Ref
Yes 220 (47.7) 123 (26.7) 68 (14.8) 50 (10.9) 0.84 (0.72, 0.98)* 1.32 (0.88, 1.98)
Physical activity (n = 625)       
Yes 232 (46.7) 135 (27.2) 68 (13.7) 62 (12.5) 1.30 (0.87, 1.96) 1.23 (0.80, 1.89)
No 47 (40.2) 33 (28.2) 16 (13.7) 21 (18.0) Ref Ref
Alcohol use (n = 638)       
Yes 181 (44.3) 114 (27.9) 65 (15.9) 49 (12.0) 0.86 (0.62, 1.19) 0.95 (0.66, 1.36)
No 104 (47.9) 54 (24.9) 22 (10.1) 37 (17.1) Ref Ref
Tobacco use (n = 637)       
Yes 34 (43.6 21 (26.9) 147 (26.9) 17 (21.8) 0.91 (0.56, 1.47) 0.77 (0.45, 1.33)
No 251 (45.9) 147 (26.9) 80 (14.6) 69 (12.6) Ref Ref
  1. aOdds Ratio is the odds of feeling confident choosing appropriate supplementation compared to other responses.
  2. bAdjusted odds ratios are controlled for all independent variables.
  3. cn may vary between variables due to missing or incomplete data.
  4. dData expressed as n(%).
  5. *p < 0.05; **p < 0.01; ***p < 0.001.