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Table 2 Adjusteda incidence rate (95% CI) per person year by ethnicity and birthweight category (defined using low birth-weight criteria of birthweight < 2500 g and by customized growth centiles (SGA))

From: Is small size at birth associated with early childhood morbidity in white British and Pakistani origin UK children aged 0–3? Findings from the born in Bradford cohort study

 

White British N = 4119

Pakistani N = 4731

GP appointments Rate per person year

 Not Low birthweight

15.8 (15.4–16.2)

23.7 (23.1–24.2)

 Low birthweight

17.9 (15.9–19.9)

26.5 (24.5–28.4)

 Not SGA

15.8 (15.4–16.2)

23.5 (23.0–24.1)

 SGA

16.4 (14.7–18.0)

25.3 (23.9–26.7)

Analgesic prescriptions Rate per person year

 Not low birthweight

2.75 (2.64–2.85)

6.35 (6.14–6.57)

 Low birthweight

3.53 (2.87–4.18)

6.22 (5.53–6.91)

 Not SGA

2.74 (2.64–2.85)

6.30 (6.08–6.53)

 SGA

3.39 (2.81–3.98)

6.51 (5.93–7.09)

Antibacterial prescriptions Rate per person year

 Not low birthweight

2.63 (2.52–2.74)

3.63 (3.50–3.76)

 Low birthweight

3.45 (2.77–4.13)

3.91 (3.45–4.37)

 Not SGA

2.63 (2.52–2.74)

3.64 (3.50–3.78)

 SGA

2.89 (2.35–3.44)

3.65 (3.29–4.01)

Bronchodilator prescriptions Rate per person year

 Not low birthweight

1.43 (1.30–1.55)

1.36 (1.25–1.48)

 Low birthweight

1.99 (1.19–2.79)

2.03 (1.46–2.60)

 Not SGA

1.42 (1.30–1.55)

1.37 (1.25–1.49)

 SGA

1.38 (0.81–1.95)

1.52 (1.14–1.91)

Hospital Emergency Rate per person year

 Not low birthweight

0.35 (0.32–0.38)

0.44 (0.40–0.47)

 Low birthweight

0.56 (0.37–0.75)

0.80 (0.61–0.99)

 Not SGA

0.35 (0.32–0.38)

0.42 (0.39–0.45)

 SGA

0.40 (0.26–0.55)

0.59 (0.47–0.71)

Hospital Elective Rate per 100 person years

 Not low birthweight

5.77 (4.58–6.96)

9.54 (7.80–11.27)

 Low birthweight

22.80 (8.75–36.85)

13.91 (7.88–19.93)

 Not SGA

5.36 (4.26–6.46)

7.99 (6.49–9.49)

 SGA

22.52 (1.74–43.31)

18.96 (10.77–27.15)

  1. aLow birthweight models adjusted for maternal parity, infant sex, gestational age, maternal age, social economic factors (maternal education, housing tenure, means- tested benefits) and smoking; SGA models adjusted for maternal age, social economic factors (maternal education, housing tenure, means- tested benefits) and smoking