| Characteristic | Cases (n = 67) (%) |
| Gender | |
| Male | 52 (77.6) |
| Female | 15 (22.4) |
| Age (years) | |
| 1–4 | 13 (19.4) |
| 5–9 | 27 (40.3) |
| 10–14 | 27 (40.3) |
| School level | |
| None | 17 (25.4) |
| Primary school | 42 (62.7) |
| Junior high school | 8 (11.9) |
| Residence | |
| Urban | 6 (9.0) |
| Rural | 61 (91.0) |
| Household income* | |
| <1000 | 26 (38.8) |
| 1000–2999 | 32 (47.8) |
| ⩾3000 | 9 (13.4) |
| Month of drowning | |
| December to February | 6 (9.0) |
| March to May | 11 (16.4) |
| June to August | 38 (56.7) |
| September to November | 12 (17.9) |
| Type of day | |
| Weekday | 19 (28.4) |
| Weekend | 13 (19.4) |
| Holiday | 6 (9.0) |
| Summer break | 29 (43.3) |
| Time of day | |
| 0:00–12:59 | 22 (32.8) |
| 13:00–17:59 | 42 (62.7) |
| 18:00–18:59 | 1 (1.5) |
| 19:00–23:59 | 2 (3.0) |
| Location | |
| Pond | 20 (29.9) |
| Ditch | 14 (20.9) |
| Construction site | 8 (11.9) |
| Well | 8 (11.9) |
| River | 7 (10.4) |
| Reservoir | 6 (9.0) |
| Home | 2 (3.0) |
| Lake | 1 (1.5) |
| Other | 1 (1.5) |
| Swimming ability† | |
| None | 41 (75.9) |
| Some | 13 (24.1) |
| Proficient | 0 (0.0) |
| Adult supervision | |
| Parent | 2 (3.0) |
| Adult | 6 (9.0) |
| None | 59 (88.1) |
*Household income measured in yuan/month; †excludes children aged 1–4 years.