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Table 2 Frequencies and bivariate logistic regression of behavioural variables of tuberculosis patients (N = 300) and controls (N = 300)

From: Risk factors for pulmonary tuberculosis in Croatia: a matched case–control study

Variable

Controls N (%)

Cases N (%)

Bivariate logistic regression

   

OR (95% CI)

Being in prison/ pre-trial detention centre*

 No

286 (95.7)

280 (93.3)

1

 Yes

13 (4.3)

20 (6.7)

1.58 (0.77-3.26)

Contact with tuberculosis

 No

212 (70.7)

170 (56.7)

1

 Yes

88 (29.3)

130 (43.3)

1.91 (1.34-2.73)

Smoking status*

 Never

151 (50.3)

93 (31.1)

1

 Ex-smoker

81 (27.0)

99 (33.1)

2.55 (1.60-4.05)

 Current

68 (22.7)

107 (35.8)

3.14 (1.98-4.98)

Age of starting to smoke, years old

 ≥ 25

10 (6.7)

6 (2.9)

1

 20-24

38 (25.5)

26 (12.6)

0.78 (0.13-4.88)

 ≤19

101 (67.8)

174 (84.5)

3.17 (0.58-17.33)

Average number of cigarettes daily

 1-10

50 (34.0)

18 (8.8)

1

 11-20

64 (43.5)

108 (52.7)

14.05 (3.31-59.71)

 ≥21

33 (22.4)

79 (38.5)

17.18 (3.80-77.61)

Total smoking time, years

 ≤10

32 (21.5)

25 (12.1)

1

 11-20

45 (30.2)

44 (21.4)

1.46 (0.53-4.07)

 ≥21

72 (48.3)

137 (66.5)

6.06 (1.81-20.27)

Passive smoking (for non-smokers)

 No

88 (58.3)

37 (39.8)

1

 Yes

63 (41.7)

56 (60.2)

2.86 (1.21-6.76)

Alcohol consumption

 Non-consumer

145 (48.3)

125 (41.7)

1

 Ex-consumer

25 (8.3)

35 (11.7)

1.71 (0.97-3.03)

 Current consumer

130 (43.3)

140 (46.7)

1.38 (0.93-2.05)

Frequency of alcohol consumption, last 12 months

 Less than once a week

44 (28.4)

26 (14.9)

1

 At least once a week

59 (38.1)

69 (39.4)

2.42 (0.97-6.07)

 Daily

52 (33.5)

80 (45.7)

3.86 (1.56-9.55)

Being ever drunk

 No

169 (56.3)

162 (54.0)

1

 Yes, rarely

112 (37.3)

107 (35.7)

1.03 (0.70-1.52)

 Yes, often

19 (6.3)

31 (10.3)

1.78 (0.93-3.43)

Ever used drugs

No

293 (97.7)

285 (95.0)

1

Yes

7 (2.3)

15 (5.0)

2.14 (0.87-5.25)

Illicit drug use

 No

299 (99.7)

297 (99.0)

1

 Yes

1 (0.3)

3 (1.0)

3.00 (0.31-28.84)

  1. *One missing value.
  2. OR = Odds ratio, CI = Confidence interval.