Table 1.
Sociodemographic characteristics, maternal health, and use of acetaminophen and other analgesics during pregnancy among mothers of boys and girls in the 2004 Pelotas birth cohort who were assessed by SDQ at the follow-ups at 6 and 11 years of age
| Maternal characteristics | Follow-up at the age of 6 years | Follow-up at the age of 11 years | ||
|---|---|---|---|---|
| Boys (N = 1812) N (%) |
Girls (N = 1658) N (%) |
Boys (N = 1781) N (%) |
Girls (N = 1666) N (%) |
|
| Age (years) | ||||
| ≤ 24 | 818 (45.14) | 761 (45.93) | 793 (44.53) | 750 (45.07) |
| 25–29 | 416 (22.96) | 370 (22.33) | 402 (22.57) | 374 (22.48) |
| 30–34 | 388 (21.41) | 343 (20.70) | 393 (22.07) | 355 (21.33) |
| ≥ 35 | 190 (10.49) | 183 (11.04) | 193 (10.84) | 185 (11.12) |
| Educational level (years) | ||||
| 0–4 | 268 (14.91) | 250 (15.26) | 257 (14.54) | 248 (15.07) |
| 5–8 | 753 (41.88) | 697 (42.55) | 726 (41.09) | 692 (42.04) |
| 9–11 | 589 (32.76) | 546 (33.33) | 599 (33.90) | 560 (34.02) |
| ≥ 12 | 188 (10.46) | 145 (8.85) | 185 (10.47) | 146 (8.87) |
| National Economic Index | ||||
| 1 (higher) | 341 (18.82) | 311 (18.76) | 325 (18.25) | 302 (18.13) |
| 2 | 362 (19.98) | 366 (22.07) | 355 (19.93) | 363 (21.79) |
| 3 | 357(19.70) | 342 (20.63) | 348 (19.54) | 349 (20.95) |
| 4 | 389 (21.47) | 329 (19.84) | 386 (21.67) | 337 (20.23) |
| 5 (lower) | 363 (20.03) | 310 (19.70) | 367 (20.61) | 315 (18.91) |
| Skin color | ||||
| White | 1125 (62.92) | 1016 (61.80) | 1106 (62.98) | 1015 (61.52) |
| Black | 298 (16.67) | 276 (16.79) | 291 (16.57) | 275 (16.67) |
| Othera | 365 (20.41) | 352 (21.41) | 359 (20.44) | 360 (21.82) |
| Smoking during pregnancy | ||||
| No | 1332 (73.51) | 1202 (72.50) | 1320 (74.12) | 1212 (72.75) |
| Yes | 480 (26.49) | 456 (27.50) | 461 (25.88) | 454 (27.25) |
| Use of alcohol during pregnancy | ||||
| No | 1750 (96.58) | 1605 (96.80) | 1720 (96.57) | 1616 (97.00) |
| Yes | 62 (3.42) | 53 (3.20) | 61 (3.43) | 50 (3.00) |
| Parity | ||||
| 1 | 751 (41.45) | 623 (37.60) | 740 (41.55) | 618 (37.12) |
| 2 | 477 (26.32) | 443 (26.74) | 472 (26.50) | 454 (27.27) |
| 3 or more | 584 (32.23) | 591 (35.67) | 569 (31.95) | 593 (35.62) |
| Pre-gestational BMI | ||||
| Underweight | 75 (4.49) | 69 (4.54) | 75 (4.59) | 66 (4.32) |
| Normal weight | 1025 (61.34) | 909 (59.76) | 996 (60.95) | 914 (59.82) |
| Overweight | 402 (24.06) | 350 (23.01) | 401 (24.54) | 358 (23.43) |
| Obese | 169 (10.11) | 193 (12.69) | 162 (9.91) | 190 (12.43) |
| Mood symptoms during pregnancy | ||||
| No | 1362 (75.17) | 1254 (75.72) | 1351 (75.86) | 1268 (76.20) |
| Yes | 450 (24.83) | 402 (24.28) | 430 (24.14) | 396 (23.80) |
| Infections during pregnancy | ||||
| No | 1066 (58.96) | 974 (58.89) | 1061 (59.71) | 975 (58.63) |
| Yes | 742 (41.04) | 680 (41.11) | 716 (40.29) | 688 (41.37) |
| Use of acetaminophen during pregnancy | ||||
| Never | 1287 (71.03) | 1218 (73.46) | 1259 (70.69) | 1229 (73.77) |
| At least once | 525 (28.97) | 440 (26.54) | 522 (29.31) | 437 (26.23) |
| Use of other analgesics during pregnancy | ||||
| Never | 1430 (79.53) | 1310 (79.25) | 1402 (79.21) | 1311 (78.83) |
| At least once | 368 (20.47) | 343 (20.75) | 368 (20.79) | 352 (21.17) |
| Outcomes | ||||
| Total SDQ (score ≥ 17 pts) | 212 (11.70) | 161 (9.71) | 288 (16.17) | 192 (11.52) |
| Emotional symptoms (score ≥ 5 pts) | 237 (13.08) | 235 (14.17) | 339 (19.03) | 347 (20.83) |
| Conduct Problems (score ≥ 4 pts) | 295 (16.28) | 220 (13.27) | 253 (14.21) | 198 (11.88) |
| Hyperactivity/inattention (score ≥ 7 pts) | 288 (15.89) | 193 (11.64) | 367 (20.61) | 189 (11.34) |
| Peer relationship problems (score pts) | 277 (15.29) | 213 (12.85) | 269 (15.10) | 190 (11.40) |
| Prosocial behavior (score ≤ 4 pts) | 23 (1.27) | 18 (1.09) | 28 (1.57) | 20 (1.20) |
aOther skin color: self-classification as brown, yellow or indigenous