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Table 3 Types of herbs used and proportion of co-users of conventional drugs and herbs ( N = 164)

From: The co-use of conventional drugs and herbs among patients in Norwegian general practice: a cross-sectional study

HerbsE

Total use n(%)

Proportion of co-users

p-value A

Aloe veraF

42 (26)

55%

0.091

Apple vinegar

10 (6)

70%

1.000

BilberryG

68 (41)

68%

0.740

Cranberry

26 (16)

77%

0.261

Echinacea

29 (18)

55%

0.200

Essiac

1 (1)

0%

0.341

Garlic

44 (27)

61%

0.578

Ginger

18 (11)

50%

0.186

Ginkgo Biloba

4 (2)

100%

0.300

Ginseng

15 (9)

67%

1.000

GLA/Evening Primrose oil

8 (5)

50%

0.447

Golden root

10 (6)

80%

0.497

Grapefruit

13 (8)

46%

0.135

Green tea

51 (31)

65%

0.860

Misteltoe

1 (1)

0%

0.341

Nattokinase

2 (1)

100%

0.548

Noni juice

5 (3)

20%

0.047 B

Soya extract

4 (2)

75%

1.000

Valeriana

4 (2)

75%

1.000

Others in totalC

15 (9)

67%

0.480

- Other: AnthocyaninD

4 (2)

75%

1.000

- Other: Saw Palmetto

2 (1)

100%

0.548

  1. AP-value for comparison of co- users with herb users alone. Analysed with Pearson Chi-Square or Fisher exact test.
  2. BSignificantly different with p < 0.05.
  3. CHerbs added by the respondent to the open question about other herbs they used.
  4. DAnthocyanin extracted from outer layers of bilberry and blackcurrant.
  5. EHerbs included in the questionnaire with no users: Shark cartilage and St. Johns wort.
  6. FMay include either topical or oral Aloe vera use.
  7. GMay include both bilberry (V. myrtillus) and/or blueberry (V.cyanococcus) due to confused with one another.