Psychology: Research and Review
Table 2 Socio-demographic characteristics of the participants
From: Behavioral intervention for sleep problems in childhood: a Brazilian randomized controlled trial
Characteristics of the child | Control g. N = 31 | Intervention g. N = 31 | Z | Total N = 62 |
Mean age (SD) | 2.1 (1.2) | 2.5 (1.4) | 1.20 Z | 2.3 (1.3) |
Age, N (%) | Z = Z test | |||
12–42 months (1–3½ years), N (%) | 23 (74%) | 22 (71%) | 0.28 | 45 (73%) |
43–60 months (3½–5 years), N (%) | 08 (26%) | 09 (29%) | 0.28 | 17 (27%) |
Gender, N (%) | ||||
Male | 16 (52%) | 18 (58%) | 0.51 | 34 (55%) |
Female | 15 (48%) | 13 (42%) | 0.51 | 28 (45%) |
Characteristics of the mother | Control g. N = 28 | Intervention g. N = 26 | Z | Total N = 54 |
Mean age (SD) | 34.42 (6.0) | 32.15 (5.2) | 1.47 Z | 33.3 (5.7) |
Age, N (%) | Z = Z test | |||
20–29 years, N (%) | 7 (25%) | 7 (27%) | 0.16 | 14 (26%) |
30–39 years, N (%) | 16 (57%) | 17 (65%) | 0.62 | 33 (61%) |
40–49 years, N (%) | 5 (18%) | 2 (8%) | 1.11 | 7 (13%) |
Marital status | ||||
Single | 1 (3%) | 2 (8%) | 0.6 | 3 (6%) |
Married | 24 (86%) | 21 (81%) | 0.48 | 45 (83%) |
Separated | 3 (11%) | 3 (11%) | 0.09 | 6 (11%) |
Education, N (%) | ||||
Higher edu. | 14 (50%) | 20 (77%) | 2.04* | 34 (63%) |
High school | 11 (39%) | 6 (23%) | 1.28 | 17 (31%) |
Elementary | 3 (11%) | – | 1.71 | 3 (6%) |
Social stratum, N (%) | ||||
High | 5 (18%) | 14 (54%) | 2.76* | 19 (35%) |
Medium | 18 (64%) | 11 (42%) | 1.61 | 29 (54%) |
Low | 5 (18%) | 1 (4%) | 1.63 | 6 (11%) |
Maternal mental health | ||||
Total problem ASR | 58.0 (8.6) | 58.7 (8.4) | 0.30 | 58.35 (8.5) |