Table 2. Comparison of the characteristics of groups NC, AC, TC, and ACTC in Ribeirão Preto, SP, Brazil, 2010/13.
| Characteristics | Groups | P value* | |||
|---|---|---|---|---|---|
| NC | AC | TC | ACTC | ||
| n (%) | n (%) | n (%) | n (%) | ||
| n=693 (68.9) | n=187 (18.6) | n=64 (6.3) | n=62 (6.2) | ||
| Intrauterine growth restriction | 0.016 | ||||
| No | 638 (92.1) | 172 (92.0) | 54 (84.4) | 51 (82.3) | |
| Yes | 55 (7.9) | 15 (8.0) | 10 (15.6) | 11 (17.7) | |
| Gestational age (weeks) | 0.059 | ||||
| ≥37 | 636 (91.8) | 172 (92.0) | 56 (87.5) | 51 (82.3) | |
| <37 | 57 (8.2) | 15 (8.0) | 8 (12.5) | 11 (17.7) | |
| Newborn's gender | 0.782 | ||||
| Male | 334 (48.2) | 98 (52.4) | 32 (50.0) | 30 (48.4) | |
| Female | 359 (51.8) | 89 (47.6) | 32 (50.0) | 32 (51.6) | |
| CES-D | 0.025 | ||||
| No depressive symptoms | 519 (78.2) | 136 (76.0) | 42 (67.7) | 38 (63.3) | |
| Depressive symptoms | 145 (21.8) | 43 (24.0) | 20 (32.3) | 22 (36.7) | |
| Marital situation | <0.001 | ||||
| Married | 302 (43.6) | 69 (36.9) | 11 (17.2) | 10 (16.1) | |
| Consensual union | 308 (44.4) | 91 (48.7) | 39 (60.9) | 32 (51.6) | |
| No partner | 83 (12.0) | 27 (14.4) | 14 (21.9) | 20 (32.3) | |
| Mother's schooling (years) | 0.417 | ||||
| ≥12 | 54 (7.8) | 16 (8.6) | 5 (7.8) | 5 (8.1) | |
| 9-11 | 457 (65.9) | 124 (66.7) | 34 (53.1) | 38 (61.3) | |
| ≤8 | 182 (26.3) | 46 (24.7) | 25 (39.1) | 19 (30.6) | |
| Mother's age (years) | 0.446 | ||||
| 20-34 | 524 (75.6) | 142 (75.9) | 48 (75.0) | 48 (77.4) | |
| <20 | 107 (15.4) | 20 (10.7) | 9 (14.1) | 7 (11.3) | |
| ≥35 | 62 (8.9) | 25 (13.4) | 7 (10.9) | 7 (11.3) | |
| Economic class | 0.375 | ||||
| A/B | 184 (27.1) | 54 (29.0) | 16 (25.4) | 25 (40.3) | |
| C | 435 (64.0) | 111 (59.7) | 41 (65.1) | 32 (51.6) | |
| D/E | 61 (8.9) | 21 (11.3) | 6 (9.5) | 5 (8.1) | |
| Age at follow-up (months)** | 0.693 | ||||
| Mean (SD) | 22.5 (3.3) | 21.9 (2.8) | 22.5 (3.8) | 21.3 (2.9) | |
The difference in the totals in relation to the reference number (n) were due to missing information. NC: no consumption; AC: only alcohol consumption; TC: only tobacco consumption; ACTC: alcohol and tobacco consumption. *Chi-squared test; **ANOVA.