Table 1

Baseline patient’s characteristics in older and younger tuberculosis patients
Characteristics Older (n = 199) Younger (n = 271) p-value
Gender, male 100 (51) 169 (62) 0.011
Age, median (IQR) 72 (68–76) 44 (32–55)
BMI, kg/m2 21.75 ± 3.59 21.96 ± 3.22 0.420
Ever smoking 87 (44) 129 (48) 0.454
Respiratory symptoms in pulmonary TB* n = 173 n = 222
 Cough 118 (68) 131 (59) 0.076
 Sputum 98 (57) 106 (48) 0.098
 Dyspnea 39 (23) 30 (14) 0.027
 Hemoptysis 20 (12) 41 (19) 0.081
Weight loss 5 (3) 23 (9) 0.785
General weakness 13 (7) 22 (8) 0.661
Fever 24 (12) 38 (14) 0.644
Night sweating 0 (0) 5 (2) 0.144
History of previous TB 31 (16) 32 (12) 0.275
Comorbid conditions**
 Cardiovascular disease† 75 (38) 24 (9) <0.001
 Diabetes mellitus 43 (22) 32 (12) 0.006
 COPD 20 (10) 4 (2) <0.001
 Chronic kidney disease 1 (1) 3 (1) 0.848
 Chronic liver disease‡ 10 (5) 15 (6) 0.982
 Malignancy 9 (5) 9 (3) 0.661

The data are presented mean ± standard deviation for age and pack-years of smoking and as n (%) for all other factors.

BMI = body mass index, COPD = chronic obstructive pulmonary disease, IQR = interquartile range, TB = tuberculosis.

*: Pulmonary tuberculosis and pulmonary and extrapulmonary tuberculosis were included.

**: If there were more than one comorbid condition for one patient, all comorbid conditions were recorded.

†: Hypertension and cerebrovascular disease are included.

‡: Hepatitis and liver cirrhosis are included.

Kwon et al.

Kwon et al. BMC Infectious Diseases 2013 13:121   doi:10.1186/1471-2334-13-121

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