Table 3. Incidence of symptoms of subjects after returning to Chongqing or Kunming after visiting high altitudes.
| Chongqing group (n = 67) | Kunming group (n = 70) | |||||
| Symptoms | 3rd day | 50th day | 100th day | 3rd day | 50th day | 100th day |
| Fatigue | 49 (73.13%) | 27 (40.29%)# | 8 (11.94%)& | 35 (50.00%) | 19 (27.14%)# | 6 (8.57%)& |
| Sleepiness | 48 (71.64%)* | 22 (32.83%)# | 9 (13.43%)& | 33 (47.14%) | 20 (28.57%)# | 11 (15.71%) |
| Insomnia | 29 (43.28%)* | 23 (34.32%)* | 9 (13.43%)& | 19 (27.14%) | 13 (18.57%) | 8 (11.42%) |
| Unresponsiveness | 31 (46.26%)* | 10 (14.92%)*# | 5 (7.46%) | 11 (15.71%) | 8 (11.42%) | 3 (4.28%) |
| Memory loss | 31 (46.26%)* | 20 (29.85%) | 10 (14.92%)& | 22 (31.42%) | 18 (25.71%) | 9 (12.85%)& |
| Agitation | 30 (44.77%)* | 24 (35.82%) | 12 (17.91%)& | 20 (28.57%) | 12 (17.14%) | 7 (10.00%) |
| Headache | 36 (53.73%)* | 27 (40.29%)* | 14 (20.89%)*& | 20 (28.57%) | 12 (17.14%) | 6 (8.57%) |
| Dizziness | 49 (73.13%)* | 27 (40.29%)# | 23 (17.91%) | 35 (50.00%) | 26 (37.14%) | 16 (22.85%) |
| Throat pain or discomfort | 28 (41.79%)* | 14 (20.89%)# | 7 (10.44%) | 15 (21.42%) | 8 (11.42%) | 4 (5.71%)& |
| Coughing | 49 (73.13%)* | 30 (44.76%)*# | 21 (31.34%)* | 37 (52.85%) | 18 (14.28%)# | 6 (8.57%) |
| Expectoration | 31 (46.26%) | 16 (23.88%)# | 8 (26.86%) | 35 (50.00%) | 8 (11.42%)# | 5 (7.14%) |
| Chest tightness | 37 (55.22%)* | 23 (34.32%)*# | 10 (14.92%)& | 17 (24.28%) | 10 (14.28%) | 6 (8.57%) |
| Flustering | 41 (61.19%)* | 25 (37.31%)*# | 18 (26.86%)* | 25 (35.71%) | 13 (18.57%)# | 5 (7.14%)& |
| Increased appetite | 31 (46.26%) | 11 (16.41%)# | 3(4.47%)& | 22 (31.42%) | 8 (11.42%)# | 1 (1.42%)& |
| Decreased appetite | 27 (40.29%)* | 17 (25.37%)*# | 5 (7.46%)& | 17 (24.28%) | 10 (14.28%) | 4 (5.71%) |
| Constipation | 22 (32.83%) | 8 (11.94%)# | 1 (1.49%)& | 19 (27.14%) | 6 (8.57%) | 0 (0.00%)& |
| Diarrhea | 18 (26.86%) | 8 (11.94%)# | 1 (1.49%)& | 13 (18.57%) | 6 (8.57%) | 1 (1.42%) |
| Abdominal distention | 44 (66.67%)* | 28 (41.79%) | 20 (29.85%)& | 32 (45.71%) | 20 (28.57%)# | 6 (8.57%)& |
| Abdominal pain | 40 (59.70%) | 29 (43.28%)# | 13 (19.40%) | 31 (44.28%) | 21 (30.00%) | 9 (12.85%)& |
| Lumbago | 29 (43.28%)* | 14 (20.89%)*# | 10 (14.92%) | 10 (14.28%) | 4 (5.71%) | 4 (5.71%) |
| Arthralgia | 39 (58.20%)* | 15 (22.38%)*# | 11 (16.41%) | 18 (25.71%) | 7 (10.00%) | 5 (7.14%) |
Data are given as the number (%). * P<0.05 relative to the Kunming group, # P<0.05, relative to 3rd day values, & P<0.05, relative to 50th day values.