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Table 1 Social and Economic-, Healthcare Team and System-, and Condition-Related Factors of the Participants of the Study according to their Self-Reported Measure of Medication Adherence, n = 299

From: Adherence to treatment and related factors among patients with chronic conditions in primary care: a cross-sectional study

Factors

Total n (%)

Adherent n (%)

Poor Adherent n (%)

Bivariate Analyses

n = 299

n = 166

n = 133

Crude OR

95% CI

p-value

Social and Economic

Gender

  Male

154 (51.5)

90 (54.2)

64 (48.1)

Ref.

Ref.

 

  Female

145 (48.5)

76 (45.8)

69 (51.9)

0.78

(0.50 to 1.24)

0.295

  Age, mean ± SD

65.79 ± 13.7

68.96 ± 12.8

61.83 ± 13.9

1.49

(1.24 to 1.78)

< 0.001

 Immigration Status

  Born in Spain

251 (83.9)

156 (94.0)

95 (71.4)

Ref.

Ref.

 

  Immigrated to Spain

48 (16.1)

10 (6.0)

38 (28.6)

0.160

(0.08 to 0.34)

< 0.001

Household Income

  1st Tertile (lowest income)

100 (33.44)

52 (31.33)

48 (36.09)

Ref.

Ref.

 

  2nd Tertile

100 (33.44)

62 (37.35)

38 (28.57)

1.51

(0.86 to 2.65)

0.154

  3er Tertile (highest income)

99 (33.11)

52 (31.33)

47 (35.34)

1.02

(0.59 to 1.78)

0.941

 Living Status

  Living alone

63 (21.1)

28 (16.9)

35 (26.3)

Ref.

Ref.

 

  Living with someone

236 (78.9)

138 (83.1)

98 (73.7)

1.69

(1.01 to 3.08)

0.048

 Education

  Primary school or lower

176 (58.9)

98 (59.0)

78 (58.7)

Ref.

Ref.

 

  Secondary school

88 (29.4)

51 (30.7)

37 (27.8)

1.10

(0.65 to 1.84)

0.726

  University or higher

35 (11.7)

17 (10.2)

18 (13.5)

0.75

(0.36 to 1.55)

0.441

Healthcare Team and System-Related

 Frequency of Follow-up Care

  Monthly or more frequently

152 (50.8)

81 (48.8)

71 (53.4)

Ref.

Ref.

 

  Quarterly

117 (39.1)

64 (38.6)

53 (39.8)

1.06

(0.65 to 1.72)

0.818

  Biannually or less frequently

30 (10.0)

21 (12.7)

9 (6.8)

2.05

(0.88 to 4.75)

0.096

   Number of Pharmacies Used for Refills, mean ± SD

1.64 ± 1.0

1.35 ± 0.8

2.00 ± 1.2

0.51

(0.40 to 0.66)

< 0.001

 Patient-provider Communication

  Not having good communication

24 (8.0)

9 (5.4)

15 (11.3)

Ref.

Ref.

 

  Having good communication

275 (92.0)

157 (94.6)

118 (88.7)

2.22

(1.03 to 6.11)

0.070

 Quality of Healthcare Delivery

  Not perceiving good quality of care

13 (4.3)

5 (3.0)

8 (6.0)

Ref.

Ref.

 

  Perceiving good quality of care

286 (95.7)

161 (97.0)

125 (94.0)

2.06

(0.66 to 6.45)

0.214

 Treatment Information Received

  Not receiving complete information

161 (53.8)

60 (36.1)

101 (75.9)

Ref.

Ref.

 

  Receiving complete information

138 (46.2)

106 (63.9)

32 (24.1)

5.58

(3.35 to 9.27)

< 0.001

Condition-Related

Number of Chronic Conditions, mean ± SD

2.90 ± 1.5

3.08 ± 1.6

2.68 ± 1.5

1.19

(1.02 to 1.39)

0.027

Adjusted Morbidity Group

  AMG1

62 (20.7)

29 (17.5)

33 (24.8)

Ref.

Ref.

 

  AMG2

163 (54.5)

89 (53.6)

74 (55.6)

1.37

(0.76 to 2.46)

0.294

  AMG3

74 (24.8)

48 (28.9)

26 (19.5)

2.10

(1.05 to 4.19)

0.035

 Alcohol Consumption

  Daily drinker

59 (19.7)

30 (18.1)

29 (21.8)

Ref.

Ref.

 

  Occasional drinker

101 (33.8)

51 (30.7)

50 (37.6)

0.99

(0.52 to 1.87)

0.966

  Non-drinker

139 (46.5)

85 (51.2)

54 (40.6)

1.52

(0.82 to 2.81)

0.824

 Tobacco Smoking

  Smoker

49 (16.4)

30 (18.1)

19 (14.3)

Ref.

Ref.

 

  Ex-smoker

98 (32.8)

56 (33.7)

42 (31.6)

0.84

(0.42 to 1.70)

0.636

  Non-smoker

152 (50.8)

80 (48.2)

72 (54.1)

0.70

(0.37 to 1.36)

0.294

 Physical Activity

  Non-active

128 (42.8)

64 (38.6)

64 (48.1)

Ref.

Ref.

 

  Active

171 (57.2)

102 (61.4)

69 (51.9)

0.68

(0.43 to 1.07)

0.097

  1. Abbreviations: CI, confidence interval; OR, odds ratio; SD, standard deviation; Ref., reference
  2. Bold values are statistically significant at p-values ≤0.05