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. 2023 Jan 20;23:32. doi: 10.1186/s12887-023-03844-2

Table 2.

Prevalence of NDs according to demographic characteristics

Sociodemographic characteristics Total, N (%) Developments
Presence of NDs Absence of NDs
N (unweighted %) Weighted % (95% CI) N (unweighted %) Weighted % (95% CI)
Sex Boy 155 (53.60) 101 (62.70) 0.62 (0.54–0.70) 54 (42.20) 0.42 (0.33–0.51)
Girl 134 (46.40) 60 (37.30) 0.373 (0.29–0.45) 74 (57.80) 0.57 (0.48–0.66)
Course Q5 120 (41.59) 66 (41.00) 0.42 (0.34–0.50) 54 (42.30) 0.42 (0.34–0.52)
Primary 162 (56.10) 90 (55.90) 0.57 (0.49–0.65) 72 (56.30) 0.57 (0.48–0.65)
Place of residence Ciutadella 122 (42.20) 66 (41.00) 0.41 (0.33–0.49) 56 (43.80) 0.43 (0.35–0.52)
Alajor-Merca-Ferre 52 (18.00) 29 (18.00) 0.18 (0.12–0.25) 23 (18.00) 0.18 (0.11–0.25)
Mao 74 (25.60) 48 (28.6) 0.28 (0.22–0.36) 28 (21.90) 0.21 (0.15–0.30)
EsCaste-St. Lluis 39 (13.30) 18 (11.2) 0.11 (0.06–0.17) 21 (16.40) 0.16 (0.10–0.24)
Economic resources Low 114 (39.40) 74 (46.00) 0.47 (0.39–0.55) 40 (31.30) 0.31 (0.23–0.40)
Media 27 (9.30) 14 (8.70) 0.08 (0.05–0.14) 13 (10.20) 0.10 (0.05–0.17)
High 142 (49.10) 69 (42.90) 0.43 (0.36–0.52) 73 (57.00) 0.57 (0.48–0.66)
Premature birth Yes 26 (9.00) 15 (9.30) 0.09 (0.05–0.15) 11 (8.60) 0.08 (0.04–0.15)
Breastfeeding Yes 221 (76.50) 117 (72.70) 0.73 (0.65–0.79) 104 (81.30) 0.81 (0.73–0.87)
Low birth weight Yes 34 (11.80) 17 (10.60) 0.10 (0.06–0.16) 17 (13.30) 0.13 (0.08–0.20)
Congenital infection Yes 6 (2.10) 4 (2.50) 0.02 (0.00–0.06) 2 (1.60) 0.01 (0.00–0.05)
Maternal age > 35 years Yes 83 (28.70) 40 (24.80) 0.25 (0.18–0.32) 43 (33.60) 0.33 (0.25–0.42)
Paternal age > 45 years Yes 11 (3.80) 5 (3.10) 0.03 (0.01–0.07) 6 (4.70) 0.04 (0.01–0.10)
Toxicity in pregnancy Yes 35 (12.10) 22 (13.70) 0.13 (0.08–0.20) 13 (10.20) 0.10 (0.05–0.16)
Childbirth type Eutocic 165 (57.10) 88 (54.70) 0.54 (0.46–0.62) 77 (60.20) 0.60 (0.51–0.68)
Instrumental 29 (10.0) 20 (12.40) 0.12 (0.07–0.18) 9 (7.00) 0.07 (0.03–0.12)
Cesarean section 94 (32.50) 51 (31.70) 0.31 (0.24–0.39) 43 (33.60) 0.33 (0.25–0.42)
Total 289 (100) 161 (55.7 0) 0.55 (0.49–0.61) 128 (44.3 0) 0.44 (0.38–0.52)

95% CI Confidence interval: binomial success rate for a sample (Clopper-Pearson), ND Neurodevelopmental disorder, Q5 Kindergarten, 5 years