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Table 1 Patients’ demographic characteristics and their treatment adherence (n = 600 patients)

From: Treatment non-adherence among methadone maintenance patients and associated factors: a multicenter, cross-sectional study in Vietnam

Demographic characteristics

Number of patients (%)

All patients

Complete adherence (no missing doses)

Non-adherence

1 to 8 missing doses

9 missing doses or higher

Age

 < 30

61 (10.2)

23 (37.7)

35 (57.4)

3 (4.9)

 

30 to 39

175 (29.2)

85 (48.6)

81 (46.3)

9 (5.1)

 

40 to 49

213 (35.5)

121 (56.8)

78 (36.6)

14 (6.6)

 

50 and higher

151 (25.2)

97 (64.2)

42 (27.8)

12 (7.9)

Sex

Male

590 (98.3)

319 (54.1)

233 (39.5)

38 (6.4)

 

Female

10 (1.7)

7 (70.0)

3 (30.0)

0 (0.0)

Place of residence (Province)

Dien Bien

192 (32.0)

126 (65.6)

53 (27.6)

13 (6.8)

 

Hanoi

204 (34.0)

131 (64.2)

53 (26.0)

20 (9.8)

 

Son La

204 (34.0)

69 (33.8)

130 (63.7)

5 (2.5)

Highest level of education

Secondary school and lower

335 (55.8)

160 (47.8)

151 (45.1)

24 (7.2)

 

High school and higher

265 (44.2)

166 (62.6)

85 (32.1)

14 (5.3)

Living with somebody

Yes

564 (94.0)

306 (54.3)

227 (40.2)

31 (5.5)

 

No

36 (6.0)

20 (55.6)

9 (25.0)

7 (19.4)

Number of family members living with the patient

Living alone

36 (6.0)

20 (55.6)

9 (25.0)

7 (19.4)

 

1 – 2

298 (49.7)

166 (55.7)

112 (37.6)

20 (6.7)

 

3 – 4

225 (37.5)

120 (53.3)

95 (42.2)

10 (4.4)

 

5 and higher

41 (6.8)

20 (48.8)

20 (48.8)

1 (2.4)

Number of close friends/relatives

Noone

21 (3.5)

8 (38.1)

10 (47.6)

3 (14.3)

 

1 to 2

248 (41.3)

137 (55.2)

95 (38.3)

16 (6.5)

 

3 to 4

179 (29.8)

79 (44.1)

92 (51.4)

8 (4.5)

 

5 and higher

152 (25.3)

102 (67.1)

39 (25.7)

11 (7.2)

Social support score

1 to < 2

53 (8.8)

21 (39.6)

25 (47.2)

7 (13.2)

 

2 to < 3

101 (16.8)

52 (51.5)

39 (38.6)

10 (9.9)

 

3 to < 4

255 (42.5)

117 (45.9)

124 (48.6)

14 (5.5)

 

4 to 5

191 (31.8)

136 (71.2)

48 (25.1)

7 (3.7)

Occupation

Not working

154 (25.7)

94 (61.0)

43 (27.9)

17 (11.0)

 

Farmer

142 (23.7)

48 (33.8)

87 (61.3)

7 (4.9)

 

Freelancer

185 (30.8)

110 (59.5)

67 (36.2)

8 (4.3)

 

Trader

41 (6.8)

26 (63.4)

13 (31.7)

2 (4.9)

 

Other occupations

78 (13.0)

48 (61.5)

26 (33.3)

4 (5.1)

Patient’s monthly income (mVND)

 < 3

323 (53.8)

149 (46.1)

148 (45.8)

26 (8.0)

 

3 to < 6

198 (33.0)

122 (61.6)

68 (34.3)

8 (4.0)

 

6 or higher

79 (13.2)

55 (69.6)

20 (25.3)

4 (5.1)

Family’s monthly income (mVND)

 < 5

230 (38.3)

98 (42.6)

115 (50.0)

17 (7.4)

 

5 to < 10

218 (36.3)

125 (57.3)

83 (38.1)

10 (4.6)

 

10 and higher

152 (25.3)

103 (67.8)

38 (25.0)

11 (7.2)

Exchange rate: 1 million Vietnam dongs (mVND) = 42.373 US dollars