Composition of the study sample from the NFBC 1966
| N | Hopkins Symptom Check List score>1.75* | Depression diagnosis | Measure of early development† | Measure of social environment‡ | |||||
| High-risk§ | Low-risk | nd¶ | High-risk§ | Low-risk | nd§ | ||||
| Males | 2509 | 169 (7%) | 79 (3%) | 229 (9%) | 2094 (83%) | 186 (7%) | 912 (36%) | 1574 (63%) | 23 (0.9%) |
| Females | 2716 | 269 (10%) | 136 (5%) | 193 (7%) | 2328 (86%) | 195 (7%) | 1034 (38%) | 1649 (61%) | 33 (1.2%) |
| All | 5225 | 438 (8%) | 215 (4%) | 422 (8%) | 4422 (85%) | 381 (7%) | 1946 (37%) | 3223 (62%) | 56 (1.1%) |
* There is prior support for using the Hopkins Symptom Check List score 1.75 as a cut-off when aiming to identify clinical depression.
† Defined by the presence of two out of three possible indicators for high early developmental risk: low birth weight, late motor development and late development of speech.
‡ Defined by the presence of two out of five possible indicators for high social risk environment: unwanted pregnancy, low socio-economic status, single parenthood, low level of education of mother and low activity for information retrieval by the mother. For further details, see text.
§ Both high early developmental and social risk present in 92 males (3,6%) and 67 females (2,4%).
¶ Not defined.