Table 1

Demographic information of staff trained

Prison A (n=175)Prison B (n=79)Prison C (n=18)Prison D (n=8)Total (n=280)
Time working in the prison service (years)
 N17278187275
 Mean (SD)8.5 (8.93)13.0 (9.04)12.9 (8.45)12.1 (9.91)10.1 (9.16)
 Median (range)6.0 (0.0–36.0)11.8 (0.1–35.3)12.5 (0.5–25.0)10.5 (1.3–29.2)8.0 (0.0–36.0)
Time working in this prison (years)
 N17278187275
 Mean (SD)6.2 (7.48)11.2 (8.15)7.9 (7.61)9.0 (7.24)7.8 (7.96)
 Median (range)3.3 (0.0–31.0)10.9 (0.1–35.3)4.5 (0.3–24.3)7.9 (1.1–20.8)5.5 (0.0–35.3)
Since working here have you encountered an incident of self-harm?
 Yes119 (68.0%)68 (86.1%)18 (100.0%)8 (100.0%)213 (76.1%)
 No52 (29.7%)11 (13.9%)0 (0.0%)0 (0.0%)63 (22.5%)
 Missing4 (2.3%)0 (0.0%)0 (0.0%)0 (0.0%)4 (1.4%)
Most recent self-harm incident?
 Within the past 7 days44 (37.0%)28 (41.2%)7 (38.9%)3 (37.5%)82 (38.5%)
 Within the past month24 (20.2%)17 (25.0%)4 (22.2%)0 (0.0%)45 (21.1%)
 Two months or more20 (16.8%)8 (11.8%)2 (11.1%)1 (12.5%)31 (14.6%)
 Missing31 (26.1%)15 (22.1%)5 (27.8%)4 (50.0%)55 (25.8%)
Type of incident?
 Self-poisoning10 (8.4%)1 (1.5%)0 (0.0%)1 (12.5%)12 (5.6%)
 Self-injury94 (79.0%)61 (89.7%)16 (88.9%)6 (75.0%)177 (83.1%)
 Mixed self-poisoning and self-injury7 (5.9%)4 (5.9%)2 (11.1%)1 (12.5%)14 (6.6%)
 Suicide7 (5.9%)2 (2.9%)0 (0.0%)0 (0.0%)9 (4.2%)
 Missing1 (0.8%)0 (0.0%)0 (0.0%)0 (0.0%)1 (0.5%)
Attended self-harm training?
 Yes74 (42.3%)48 (60.8%)13 (72.2%)3 (37.5%)138 (49.3%)
 No96 (54.9%)30 (38.0%)3 (16.7%)5 (62.5%)134 (47.9%)
 Cannot recall4 (2.3%)1 (1.3%)2 (11.1%)0 (0.0%)7 (2.5%)
 Missing1 (0.6%)0 (0.0%)0 (0.0%)0 (0.0%)1 (0.4%)
Time since self-harm training?
 N6645133127
 Mean (SD)30.5 (38.22)20.4 (27.32)41.7 (53.84)19.0 (20.42)27.8 (36.64)
 Median (range)12.0 (0.0–180.0)12.0 (1.0–120.0)12.0 (1.0–168.0)12.0 (3.0–42.0)12.0 (0.0–180.0)
Who provided this training?
 Prison service59 (79.7%)42 (87.5%)8 (61.5%)3 (100.0%)112 (81.2%)
 NHS3 (4.1%)0 (0.0%)2 (15.4%)0 (0.0%)5 (3.6%)
 Nurse training2 (2.7%)1 (2.1%)0 (0.0%)0 (0.0%)3 (2.2%)
 Other including University3 (4.1%)2 (4.2%)1 (7.7%)0 (0.0%)6 (4.3%)
 Missing7 (9.5%)3 (6.3%)2 (15.4%)0 (0.0%)12 (8.7%)
Length of training?
 1 hour19 (25.7%)0 (0.0%)1 (7.7%)0 (0.0%)20 (14.5%)
 2 hours9 (12.2%)4 (8.3%)1 (7.7%)1 (33.3%)15 (10.9%)
 Half day16 (21.6%)14 (29.2%)1 (7.7%)1 (33.3%)32 (23.2%)
 Full day13 (17.6%)18 (37.5%)7 (53.8%)1 (33.3%)39 (28.3%)
 More than 1 day7 (9.5%)4 (8.3%)3 (23.1%)0 (0.0%)14 (10.1%)
 Missing10 (13.5%)8 (16.7%)0 (0.0%)0 (0.0%)18 (13.0%)