Table 4. Epidemiological studies on soil-transmitted helminth infections conducted in Honduras from May 1930 to June 30, 2012 (n = 171).
| Characteristic | n (%) |
| Number of studies identified | 171 |
| Peer-reviewed | 33 (19.3) |
| Grey literature | 138 (80.7) |
| Total number of individuals included in the studies | 342,898 |
| Studied population | |
| Children | 87 (50.9) |
| Adults | 12 (7.0) |
| General population | 72 (42.1) |
| Study setting | |
| Community based | 85 (49.7) |
| Health-care based | 73 (42.7) |
| Special population based | 13 (7.6) |
| Parasite species of focus | |
| Hookworm only | 4 (2.3) |
| A. lumbricoides only | 2 (1.2) |
| All 3 species of STH | 165 (96.5) |
| Primary outcome of the study | |
| STH prevalence only | 140 (81.9) |
| STH prevalence and risk factors association | 10 (5.8) |
| STH prevalence and pathology association | 21 (12.3) |
| Stool examination method | |
| Direct smear only (with or without egg counting) | 90 (52.6) |
| Stoll egg counting technique | 2 (1.2) |
| Direct smear and/or Zinc sulphate, sugar flotation, formalin-ether | 25 (14.6) |
| Included Kato-Katz method | 54 (31.6) |
| Intensity of infection | |
| Established | 59 (34.5) |
| Not established | 112 (65.5) |
STH: Soil-transmitted helminth.