Table 1 Parental characteristics for all IKIDS participants with an infant enrolled and had exposure data available (n = 532), those who provided language data at 26.5–28.5 months (CDI; n = 298), and those who provided language data at 36–38 months (SLAS; n = 254) by whether they reported taking acetaminophen during pregnancy or not.

From: Examining the relationship of acetaminophen use during pregnancy with early language development in children

Participant Characteristics

Participants with an infant enrolled in study & exposure data available

Participants who completed the CDI when their child was 26.5–28.5 months

Participants who completed the SLAS when their child was 36–38 months

Participant did not take acetaminophen during pregnancy

Participant took acetaminophen during pregnancy

Participant did not take acetaminophen during pregnancy

Participant took acetaminophen during pregnancy

Participant did not take acetaminophen during pregnancy

Participant took acetaminophen during pregnancy

(n = 155)

(n = 377)

(n = 90)

(n = 208)

(n = 80)

(n = 174)

 

N (%)

N (%)

N (%)

N (%)

N (%)

N (%)

Maternal race & ethnicity

 White, Non-Hispanic

121 (78.1)

324 (85.9)

71 (78.9)

182 (87.5)

67 (83.8)

156 (89.6)

 Other

34 (21.9)

51 (13.5)

19 (21.1)

26 (12.5)

13 (16.2)

17 (9.8)

 Unknown/Missing

0 (0.0)

2 (0.5)

0 (0.0)

0 (0.0)

0 (0.0)

1 (0.6)

Other parent’s race & ethnicity

 White, Non-Hispanic

118 (76.1)

318 (84.4)

72 (80.0)

185 (88.9)

65 (81.2)

155 (89.1)

 Other

37 (23.9)

57 (15.1)

18 (20.0)

23 (11.1)

15 (18.8)

18 (10.3)

 Unknown/Missing

0 (0.0)

2 (0.5)

0 (0.0)

0 (0.0)

0 (0.0)

1 (0.6)

Maternal marital status

 Married/Living as married

143 (92.3)

351 (93.1)

84 (93.3)

198 (95.2)

77 (96.2)

166 (95.4)

 Separated/Divorced/ Widowed/Single

12 (7.7)

26 (6.9)

6 (6.7)

10 (4.8)

3 (3.8)

8 (4.6)

Maternal education

 < Bachelor’s degree

25 (16.1)

78 (20.7)

7 (7.8)

27 (13.0)

4 (5.0)

22 (12.6)

 ≥ Bachelor’s degree

130 (83.9)

299 (79.3)

83 (92.2)

181 (87.0)

76 (95.0)

152 (87.4)

Other parent’s education

 < Bachelor’s degree

41 (26.5)

116 (30.8)

16 (17.8)

45 (21.6)

14 (17.5)

41 (23.6)

 ≥ Bachelor’s degree

113 (72.9)

259 (68.7)

74 (82.2)

163 (78.4)

66 (82.5)

133 (76.4)

 Unknown/Missing

1 (0.7)

2 (0.5)

    

Maternal parity

 0

75 (48.4)

198 (52.5)

47 (52.2)

119 (57.2)

41 (51.2)

94 (54.0)

 ≥1

80 (51.6)

178 (47.2)

43 (47.8)

89 (42.8)

39 (48.8)

79 (45.4)

 Missing

0 (0.0)

1 (0.3)

0 (0.0)

0 (0.0)

0 (0.0)

1 (0.6)

Annual household income

 $0–$49,999

33 (21.3)

70 (18.6)

17 (18.9)

29 (13.9)

11 (13.8)

25 (14.4)

 $50,000–$99,999

72 (46.4)

181 (48.0)

41 (45.5)

96 (46.2)

37 (46.2)

85 (48.8)

 ≥$100,000

48 (31.0)

124 (32.9)

32 (35.6)

83 (39.9)

31 (38.8)

64 (36.8)

 Unknown/Missing

2 (1.3)

2 (0.5)

0 (0.0)

0 (0.0)

1 (1.2)

0 (0.0)

Maternal health insurance status

 Insured

153 (98.7)

376 (99.7)

90 (100.0)

208 (100.0)

80 (100.0)

174 (100.0)

 Uninsured

2 (1.3)

1 (0.3)

0 (0.0)

0 (0.0)

0 (0.0)

0 (0.0)

Maternal tobacco smoking during 1st trimester

 Yes

7 (4.5)

18 (4.8)

3 (3.3)

4 (1.9)

3 (3.8)

8 (4.6)

 No

139 (89.7)

333 (88.3)

84 (93.3)

191 (91.8)

72 (90.0)

151 (86.8)

 Unknown/Missing

9 (5.8)

26 (6.9)

3 (3.3)

13 (6.3)

5 (6.2)

15 (8.6)

Maternal alcohol during 1st trimester consumption

 Yes

116 (74.8)

278 (73.7)

68 (75.6)

153 (73.6)

59 (73.8)

130 (74.7)

 No

39 (25.2)

98 (26.0)

22 (24.4)

55 (26.4)

21 (26.2)

44 (25.3)

 Unknown/Missing

0 (0.0)

1 (0.3)

0 (0.0)

0 (0.0)

0 (0.0)

0 (0.0)

Gestational weeks 0–4

 None

96 (61.9)

222 (58.9)

55 (61.1)

121 (58.2)

49 (61.3)

98 (56.3)

 <4 drinks/week

46 (29.7)

124 (32.9)

27 (30.0)

72 (34.6)

24 (30.0)

59 (33.9)

 4–10 drinks/week

8 (5.2)

25 (6.6)

7 (7.8)

12 (5.8)

9 (11.3)

14 (8.0)

 11–21 drinks/week

1 (0.7)

5 (1.3)

1 (1.1)

3 (1.4)

1 (1.3)

3 (1.7)

 Unknown/Missing

0 (0.0)

1 (0.3)

0 (0.0)

0 (0.0)

0 (0.0)

0 (0.0)

Gestational weeks 5–8

 None

151 (97.4)

364 (96.6)

87 (96.7)

200 (96.2)

77 (96.3)

166 (95.4)

 <4 drinks/week

3 (1.9)

6 (1.6)

2 (2.2)

5 (2.4)

2 (2.5)

3 (1.7)

 Unknown/Missing

1 (0.6)

7 (1.9)

1 (1.1)

3 (1.4)

1 (1.3)

5 (2.9)

Gestational weeks 9–14

 None

152 (98.1)

370 (98.1)

88 (97.8)

204 (98.1)

79 (98.8)

171 (98.3)

 <4 drinks/week

3 (1.9)

3 (0.8)

2 (2.2)

2 (1.0)

1 (1.3)

1 (0.6)

 Unknown/Missing

0 (0.0)

4 (1.1)

0 (0.0)

2 (1.0)

0 (0.0)

2 (1.1)

Maternal non-native English speaker

 Yes

17 (11.0)

10 (2.7)

11 (12.2)

9 (4.3)

8 (10.0)

8 (4.6)

 No

138 (89.0)

367 (97.3)

79 (87.8)

199 (95.7)

72 (90.0)

166 (95.4)

Maternal age (years) at baseline

30.82 (4.06)

30.16 (4.13)

31.21 (3.99)

30.55 (3.77)

30.99 (3.79)

30.55 (3.68)

Maternal verbal IQ (PPVTa standardized score)

107.66 (12.92)d

107.96 (10.64)e

108.26 (12.99)g

108.21 (10.19)h

109.61 (11.30)i

109.24 (10.59)j

Mean maternal stress (PSS-10b) score during pregnancy

10.61 (5.64)

11.33 (5.69)

10.26 (5.46)

10.82 (5.29)

9.82 (5.18)

10.63 (5.47)

Mean maternal depression (EPDSc) score during pregnancy

3.94 (3.05)

4.31 (3.38)

3.89 (2.83)

3.96 (3.15)

3.62 (2.76)

3.96 (3.17)

  1. aPPVT-IV: Peabody Picture Vocabulary Test - Fourth Edition.
  2. bPSS-10: Perceived Stress Scale.
  3. cEPDS: Edinburgh Postnatal Depression Scale
  4. dPPVT unable to be collected due to missed visit or COVID-19 n = 121.
  5. ePPVT unable to be collected due to missed visit or COVID-19 n = 47.
  6. fPPVT unable to be collected due to missed visit or COVID-19 n = 2.
  7. gPPVT unable to be collected due to missed visit or COVID-19 n = 18.
  8. hPPVT unable to be collected due to missed visit or COVID-19 n = 38.
  9. iPPVT unable to be collected due to missed visit or COVID-19 n = 13.
  10. jPPVT unable to be collected due to missed visit or COVID-19 n = 22.