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. Author manuscript; available in PMC: 2024 Jul 14.
Published in final edited form as: Pediatr Res. 2023 Dec 11;95(7):1883–1896. doi: 10.1038/s41390-023-02924-4

Table 3.

Maternal report of use of medications containing acetaminophen during pregnancy in the IKIDS cohort.

Participants with an infant enrolled in study & exposure data available Participants who completed the CDI when their child was 26.5-28.5 months
(n = 532)
(n = 298)
1st Trimester 2nd Trimester 3rd Trimester Entire Pregnancy 1st Trimester 2nd Trimester 3rd Trimester Entire Pregnancy
N (%) N (%) N (%) N (%) N (%) N (%) N (%) N (%)



None 220 (41.4) 249 (46.8) 338 (63.5) 155 (29.1) 129 (43.3) 148 (49.7) 197 (66.1) 90 (30.2)
Any 312 (58.6) 283 (53.2) 194 (36.5) 377 (70.9) 169 (56.7) 150 (50.3) 101 (33.9) 208 (69.8)



  Mean (SD) number of times taken 17.9 (39.7) 22.0 (44.1) 15.1 (25.6) 39.1 (75.1) 14.5 (26.8) 20.1 (44.9) 13.2 (21.6) 32.7 (66.0)
  Median (IQR) number of times taken 5.0 (14.0) 7.5 (15.0) 5.0 (12.0) 14.0 (31.8) 6.0 (13.5) 7.0 (13.8) 4.8 (11.3) 12.4 (29.6)
  Range number of times taken 0.5 - 314.0 0.5 - 350.0 0.5 - 153.0 1.0 - 641.0 1.0 - 248.5 0.5 - 339.0 0.5 - 119.5 1.0 - 550.5



Formulation
  Paracetamol alone 258 (82.7) 229 (80.9) 158 (81.4) 287 (76.1) 140 (82.8) 121 (80.7) 83 (82.2) 158 (76.0)
  Paracetamol in combination with other active ingredients 25 (8.0) 19 (6.7) 17 (8.8) 26 (6.9) 16 (9.5) 15 (10.0) 10 (9.9) 19 (9.1)
  Multiple formulations 29 (9.3) 35 (12.4) 19 (9.8) 64 (17.0) 13 (7.7) 14 (9.3) 8 (7.9) 31 (14.9)
Indication
  Pain 214 (68.6) 202 (71.4) 134 (69.1) 235 (62.3) 110 (65.1) 102 (68.0) 68 (67.3) 118 (56.7)
  Other 39 (12.5) 31 (11.0) 26 (13.4) 54 (14.3) 23 (13.6) 20 (13.3) 14 (13.9) 36 (17.3)
  Multiple reasons given 27 (8.7) 28 (9.9) 19 (9.8) 61 (16.2) 16 (9.5) 12 (8.0) 10 (9.9) 36 (17.3)
  Missing 32 (10.3) 22 (7.8) 15 (7.7) 27 (7.2) 20 (11.8) 16 (10.7) 9 (8.9) 18 (8.7)



Participants who completed the SLAS when their child was 36-38 months
(n = 254)

1st Trimester 2nd Trimester 3rd Trimester Entire Pregnancy
N (%) N (%) N (%) N (%)


None 111 (43.7) 123 (48.4) 169 (66.5) 80 (31.5)
Any 143 (56.3) 131 (51.6) 85 (33.5) 174 (68.5)


  Mean (SD) number of times taken 13.2 (27.1) 21.9 (47.6) 14.7 (24.2) 34.5 (70.2)
  Median (IQR) number of times taken 4.5 (11.0) 8.0 (14.5) 5.0 (12.0) 13.0 (29.0)
  Range number of times taken 1.0 - 248.5 0.5 - 339.0 0.5 - 119.5 1.0 - 550.5


Formulation
  Acetaminophen alone 118 (82.5) 105 (80.2) 69 (81.2) 133 (76.4)
  Acetaminophen in combination with other active ingredients 15 (10.5) 13 (9.9) 9 (10.6) 16 (9.2)
  Multiple formulations 10 (7.0) 13 (9.9) 7 (8.2) 25 (14.4)
Indication
  Pain 92 (64.3) 86 (65.6) 56 (65.9) 96 (55.2)
  Other 22 (15.4) 18 (13.7) 12 (14.1) 31 (17.8)
  Multiple reasons given 10 (7.0) 12 (9.2) 7 (8.2) 29 (16.7)
  Missing 19 (13.3) 15 (11.5) 10 (11.8) 18 (10.3)


SD: standard deviation, IQR: interquartile range