Table 4 Duration of cough and fever, comparison between retrospective and prospective studies Retrospective study
Cough | Cases in which duration is specified | Mean duration in days (range min–max) | Min | Max | Prevalence of cases with symptom lasting ≥ 10 days |
|---|---|---|---|---|---|
Days | 84 | 20 (1–171) | 1 | 171 | 49 (21.7%) |
Fever | |||||
 Days | 92 | 12 (1–90) | 1 | 90 | 43 (19.0%) |
Prospective study | |||||
 Variable | TB cases | Cases with symtpom lasting ≥ 10 days | |||
 N° patients | 14 |  | |||
 With Cough |  | 3 (21.4%) | |||
 With Fever |  | 1 (7.1%) | |||