Table 1. Demographic and epidemiologic characteristics of patients in a study of NTM infections at Kampong Cham Provincial Reference Hospital, Cambodia, October 1, 2012–April 21, 2014*.
| Characteristic | Total, N = 1,187 | TB, n = 217 | NTM disease, n = 11 | NTM colonization, n = 113 | Culture-negative, n = 842 |
|---|---|---|---|---|---|
| Median age, y (IQR) |
54 (40–65) |
49 (35–62) |
54 (46–63) |
57 (44–65) |
54 (40–65) |
| Sex | |||||
| F | 611 (51.5) | 87 (40.1) | 6 (54.5) | 66 (59.5) | 451 (53.6) |
| M |
567 (48.5) |
130 (60.0) |
5 (45.5) |
47 (41.6) |
391 (46.4) |
| Occupation | |||||
| Unemployed | 339 (28.6) | 61 (28.1) | 4 (36.4) | 35 (31.0) | 238 (28.3) |
| Student | 35 (2.9) | 7 (3.2) | 0 | 5 (4.4) | 23 (2.7) |
| Pensioner | 25 (2.1) | 1 (0.5) | 0 | 4 (3.5) | 20 (2.4) |
| Farmer | 568 (47.9) | 109 (50.2) | 7 (63.6) | 45 (39.8) | 406 (48.2) |
| Trader/seller | 57 (4.8) | 7 (3.2) | 0 | 8 (7.1) | 42 (5.0) |
| Building worker | 18 (1.5) | 5 (2.3) | 0 | 1 (0.9) | 12 (1.4) |
| Police/army | 14 (1.2) | 5 (2.3) | 0 | 0 | 8 (0.9) |
| Fisherman | 19 (1.6) | 2 (0.9) | 0 | 4 (3.5) | 13 (1.5) |
| Administration | 33 (2.8) | 3 (1.4) | 0 | 4 (3.5) | 26 (3.1) |
| Factory worker | 45 (3.8) | 13 (6.0) | 0 | 2 (1.8) | 30 (3.6) |
| Other |
34 (2.9) |
4 (1.8) |
0 |
5 (4.4) |
24 (2.8) |
| Drinking water | |||||
| Water well | 709 (59.7) | 127 (58.5) | 7 (63,6) | 63 (55.7) | 510 (60.6) |
| Running water | 210 (17.7) | 36 (16.6) | 2 (18.2) | 27 (23.9) | 144 (17.1) |
| Rain | 64 (5.4) | 15 (6.9) | 0 | 7 (6.2) | 42 (5.0) |
| River/lake/pond | 131 (11.0) | 24 (11.1) | 1 (9.1) | 11 (9.7) | 95 (11.3) |
| Mineral water |
74 (6.1) |
15 (6.9) |
1 (9.1) |
5 (4.4) |
51 (6.1) |
| Water disinfection | |||||
| Boiled | 701 (59.1) | 119 (54.8) | 5 (45.5) | 68 (60.2) | 506 (60.2) |
| Filtered | 121 (10.2) | 15 (6.9) | 2 (18.2) | 13 (11.5) | 91 (10.8) |
| None |
364 (30.7) |
83 (38.2) |
4 (36.4) |
32 (28.3) |
244 (29.0) |
| Use of hot tub |
13/345 (3.8) |
1/63 (1.6) |
0 |
1/37 (2.7) |
11/242 (4.5) |
| Pneumoconiosis risk |
27 (2.3) |
11 (5.1) |
0 |
1 (0.9) |
15 (1.8) |
| Surgery of the lung |
2 (0.2) |
0 |
0 |
0 |
2 (0.2) |
| Past TB |
309 (26.0) |
12 (5.5) |
7 (63.4) |
37 (32.7) |
252 (30.0) |
| Chronic bronchitis |
447/1,168 (38.3) |
99/213 (46.5) |
4 (36.4) |
34/110 (30.6) |
310/830 (33.0) |
| Hospitalization† |
144 (12.1) |
14 (6.4) |
6 (54.5) |
15 (13.3) |
109 (13.0) |
| Smoking | |||||
| Current smoker | 175 (14.7) | 39 (17.9) | 2 (18.2) | 10 (8.8) | 123 (14.6) |
| Former smoker |
266 (22.4) |
57 (26.3) |
3 (27.3) |
23 (20.3) |
58 (6.9) |
| Esophageal motility disorders |
1/1,178 (<0.1) |
0 |
0 |
0 |
1/836 (<0.1) |
| HIV positive | 19/917 (2.1) | 2/179 (1.1) | 4 (36.4) | 2/84 (2.4) | 11/639 (1.7) |
*Values are no. patients/no. with available data (%) except as indicated. IQR, interquartile range; NTM, nontuberculous mycobacteria; TB, tuberculosis. †For respiratory disease.