Table 3. Socioeconomic and demographic conditions associated with Bayley III screening subtest scores among infants.
| Variables | Bayley III screening subtests | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Total n (%) | Cognitive | Receptive communication | Gross motor | ||||||||
| C | E | P | C | E | P | C | E | P | |||
| n (%) | n (%) | n (%) | n (%) | n (%) | n (%) | ||||||
| Per capita family income (MS) * | |||||||||||
| ≤ 0.50 | 91 (78.4) | 81 (89.0) | 10 (11.0) | 1.00† | 51 (56.0) | 40 (44.0) | 0.08 | 81 (89.0) | 10 (11.0) | 0.45 | |
| > 0.50 | 25 (21.6) | 23 (92.0) | 2 (8.0) | 19 (76.0) | 6 (24.0) | 24 (96.0) | 1 (4.0) | ||||
| Maternal age (years) | |||||||||||
| ≤ 19 | 32 (23.5) | 26 (81.3) | 6 (18.8) | 0.23† | 16 (50.0) | 16 (50.0) | 0.34 | 29 (90.6) | 3 (9.4) | 1.00† | |
| ≥ 20 | 104 (76.5) | 93 (89.4) | 11 (10.6) | 64 (61.5) | 40 (38.5) | 93 (89.4) | 11 (10.6) | ||||
| Maternal schooling (years) | |||||||||||
| ≤ 4 | 15 (11.0) | 13 (86.7) | 2 (13.3) | 1.00† | 7 (46.7) | 8 (53.3) | 0.46 | 15 (100) | 0 (0.0) | 0.36† | |
| ≥ 5 | 121 (89.0) | 106 (87.6) | 15 (12.4) | 73 (60.3) | 48 (39.7) | 107 (88.4) | 14 (11.6) | ||||
| Paternal schooling (years) ‡ | |||||||||||
| ≤ 7 | 36 (37.1) | 55 (90.2) | 6 (9.8) | 0.35† | 17(47.2) | 19 (52.8) | 0.06 | 32 (88.9) | 4 (11.1) | 0.46† | |
| ≥ 8 | 61 (62.9) | 30 (83.3) | 6 (16.7) | 42 (68.9) | 19 (31.1) | 57 (93.4) | 4 (6.6) | ||||
| Maternal employment | |||||||||||
| Housewife | 112 (82.4) | 96 (85.7) | 16 (14.3) | 0.31† | 60 (53.6) | 52 (46.4) | 0.01 | 99 (88.4) | 13 (11.6) | 0.46† | |
| Employed | 24 (17.6) | 23 (95.8) | 1 (4.2) | 20 (83.3) | 4 (16.7) | 23 (95.8) | 1 (4.2) | ||||
| Paternal employment § | |||||||||||
| Unemployed | 41 (41.8) | 32 (78.0) | 9 (22.0) | 0.03 | 21 (51.2) | 20 (48.8) | 0.13 | 37 (90.2) | 4 (9.8) | 0.72† | |
| Employed | 57 (58.2) | 54 (94.7) | 3 (5.3) | 39 (68.4) | 18 (31.6) | 53 (93.0) | 4 (7.0) | ||||
| Children under five | |||||||||||
| > 1 | 97 (71.3) | 35 (89.7) | 4 (10.3) | 0.78† | 18 (46.2) | 21 (53.8) | 0.09 | 34 (87.2) | 5 (12.8) | 0.54† | |
| 1 | 39 (28.7) | 84 (86.6) | 13 (13.4) | 62 (63.9) | 35 (36.1) | 88 (90.7) | 9 (9.3) | ||||
| Cell phone | |||||||||||
| No | 26 (19.1) | 19 (73.1) | 7 (26.9) | 0.02† | 11 (42.3) | 15 (57.7) | 0.09 | 20 (76.9) | 6 (23.1) | 0.03† | |
| Yes | 110 (80.9) | 101 (90.9) | 10 (9.1) | 69 (62.7) | 41 (37.3) | 102 (92.7) | 8 (7.3) | ||||
C = Competent; E = Emerging; MS = Minimum salary (1 MS = R$ 415.00)
*
missing information in 20 cases
†
Fisher exact test
‡
missing information in 39 cases
§
missing information in 38 cases.