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Table 3 Participant responses to belief that supplements are essential for health 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

 

Yes, essential

No, not essential

Don’t know

Odds ratio, raw (95% CI)a

Odds ratio, adjusted (95% CI)b

Geographic location (n = 618)cd

     

East

113 (48.7)

78 (33.6)

41 (17.7)

Ref

Ref

West

15 (30.7)

187 (48.5)

42 (10.9)

0.72 (0.52, 1.00)

0.45 (0.29, 0.72)**

Sex (n = 610)

     

Male

111 (36.8)

149 (49.3)

42 (13.9)

Ref

Ref

Female

158 (51.3)

112 (36.4)

38 (12.3)

1.81 (1.31, 2.50)***

1.31 (0.89, 1.91)

Age group (n = 609)d

     

21–39

63 (34.2)

102 (55.4)

19 (10.3)

Ref

Ref

40–59

130 (45.0)

113 (39.1)

46 (15.9)

1.57 (1.07, 2.30)*

1.18 (0.76, 1.84)

60-75

73 (53.6)

47 (34.6)

16 (11.8)

2.22 (1.41, 3.51)**

1.65 (0.98, 2.77)

BMI (n = 618)

     

Normal weight

119 (46.0)

111 (42.9)

29 (11.2)

Ref

Ref

Overweight

73 (36.7)

95 (47.7)

31 (15.6)

0.68 (0.47, 0.99)*

0.82 (0.52, 1.28)

Obese

78 (48.8)

59 (36.9)

23 (14.4)

1.11 (0.75, 1.66)

1.27 (0.79, 2.05)

Supplement use (n = 618)

     

No

20 (12.1)

107 (64.5)

39 (23.5)

Ref

Ref

Yes

250 (55.3)

158 (35.0)

44 (9.7)

9.03 (5.46, 14.9)*

11.37 (6.35, 20.39)***

Physical activity (n = 603)

     

Yes

225 (46.0)

200 (40.9)

64 (13.1)

1.70 (1.11, 2.61)*

1.55 (0.94, 2.55)

No

38 (33.3)

60 (52.6)

16 (14.0)

Ref

Ref

Alcohol use (n = 613)

     

Yes

162 (40.8)

185 (46.6)

50 (12.6)

0.70 (0.50, 0.98)*

0.70 (0.47, 1.05)

No

107 (49.5)

77 (35.7)

32 (14.8)

Ref

Ref

Tobacco use (n = 612)

     

Yes

34 (44.7)

26 (34.2)

16 (21.1)

1.03 (0.64, 1.68)

1.30 (0.68, 2.49)

No

235 (43.8)

235 (43.8)

66 (12.3)

Ref

Ref

  1. aOdds Ratio is the odds of believing supplements are essential 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.