Skip to main content

Table 2 Answers to questionnaire assessing knowledge on oral anticoagulation therapy (n = 345)

From: Safety relevant knowledge of orally anticoagulated patients without self-monitoring: a baseline survey in primary care

#

 

Correct answer

Correct n (%)

Incorrect* n (%)

Score

1

Indication for OAT known

Individual

329 (95%)

16 (5%)

1

2

Awareness of risk treated with OAT

Individual

278 (81%)

67 (19%)

1

3

Duration of treatment known

Individual

249 (72%)

96 (28%)

1

4

Frequency of controls known

Individual

278 (81%)

67 (19%)

1

5

Awareness of target INR range

Individual

158 (46%)

187 (54%)

1

6

Need to follow a specific diet

    
 

Overall

 

107 (31%)

238 (69%)

1

 

• Consuming large amounts of salad and vegetables

No

 

11 (3%)

0

 

• Avoid salad and vegetables

No

 

57 (17%)

0

 

• Regular diet of salad and vegetables

Yes

107 (31%)

 

1

 

• Do not know

No

 

170 (49%)

0

7

Vitamin K content of some foods

    
 

Overall

   

1

 

• Cabbage

Yes

245 (71%)

100 (29%)

1/8

 

• Potatoes

No

283 (82%)

62 (18%)

1/8

 

• Apples

No

284 (82%)

61 (18%)

1/8

 

• Green salad

Yes

155 (45%)

190 (55%)

1/8

 

• Tomato extract

No

260 (75%)

85 (25%)

1/8

 

• Spinach

No

164 (48%)

181 (52%)

1/8

 

• Onion

Yes

37 (11%)

308 (89%)

1/8

 

• Zucchini

No

268 (78%)

77 (22%)

1/8

8

Management of missed medication dose

n.a.

46 (13%)

299 (87%)

1

9

Awareness that there are no symptoms of underdosing

n.a.

194 (56%)

151 (44%)

1

10

Safest over the counter pain medication

    
 

Overall

 

68 (20%)

277 (80%)

1

 

• Paracetamol/acetaminophen

Yes

68 (20%)

 

1

 

• Aspirin (acetylsalicylic acid)

No

 

21 (6%)

 
 

• Other non-steroidal anti-inflammatory drugs

No

 

37 (11%)

 
 

• Do not know

No

 

219 (63%)

 

11

Interaction with OAT

    
 

Overall

   

1

 

• Regular exercise

No

264 (77%)

81 (23%)

1/8

 

• Gastroenteritis

Yes

60 (17%)

285 (83%)

1/8

 

• Fever

Yes

16 (5%)

328 (95%)

1/8

 

• Coffee

No

327 (95%)

18 (5%)

1/8

 

• Ginkgo biloba

Yes

16 (5%)

329(95%)

1/8

 

• Non-prescription drugs

Yes

71 (21%)

274 (79%)

1/8

 

• Moderate intake of alcohol

No

272 (79%)

73 (21%)

1/8

 

• Fasting/weight reduction diet

Yes

48 (14%)

297 (86%)

1/8

12

Recognition of emergency situations

    
 

Overall

   

1

 

• Painful swelling with or without skin discoloration

Yes

95 (28%)

250 (72%)

1/5

 

• Sudden speech disorder

Yes

169 (49%)

176 (51%)

1/5

 

• Black stool (melaena)

Yes

133 (39%)

212 (61%)

1/5

 

• Arm weakness (also temporarily)

Yes

85 (25%)

260 (75%)

1/5

 

• Every cut or injury with bleeding

Yes

224 (65%)

121 (35%)

1/5

13

Important situation to inform others about OAT

    
 

Overall

   

1

 

• Dental visits

Yes

312 (90%)

33 (10%)

1/5

 

• Pharmacist

Yes

93 (27%)

252 (73%)

1/5

 

• Before injections

Yes

156 (45%)

189 (55%)

1/5

 

• Any new prescription medication

Yes

191 (55%)

154 (45%)

1/5

 

• Before invasive medical procedures

Yes

305 (88%)

40 (12%)

1/5

    

Maximum score

13

  1. OAT oral anticoagulation therapy, n.a. non applicable. *non-response was treated as incorrect answer.