Table 2.
Unadjusted mortality rates overall and by risk factors at birth in England and Sweden (univariate analyses)
|
England |
Sweden |
||||||||
|---|---|---|---|---|---|---|---|---|---|
| 2–27 days | 28–364 days | 1–4 years | 2 days–4 years | 2–27 days | 28–364 days | 1–4 years | 2 days–4 years | ||
| Overall | 1500 (1500–1600) | 140 (130–140) | 19 (18–20) | 74 (72–75) | 920 (850–990) | 86 (80–92) | 15 (13–16) | 46 (44–48) | |
| Birthweight, g | |||||||||
| 500–999 | 180 000 (170 000–190 000) | 9000 (8300–9700) | 230 (180–310) | 5700 (5500–6000) | 110 000 (94 000–130 000) | 5300 (4200–6600) | 81 (30–220) | 3200 (2800–3700) | |
| 1000–1499 | 31 000 (28 000–35 000) | 1700 (1500–1900) | 98 (75–130) | 1000 (950–1100) | 30 000 (23 000–38 000) | 1500 (1100–2100) | 93 (49–180) | 910 (760–1100) | |
| 1500–2499 | 5800 (5400–6300) | 550 (520–590) | 54 (48–61) | 270 (260–280) | 7400 (6200–8800) | 570 (490–680) | 58 (44–77) | 300 (270–330) | |
| 2500–3499 | 980 (930–1000) | 120 (110–120) | 20 (19–21) | 59 (58–61) | 680 (590–780) | 87 (78–96) | 16 (14–18) | 43 (40–46) | |
| ≥3500 | 490 (450–530) | 54 (50–58) | 12 (12–14) | 31 (29–32) | 310 (260–370) | 41 (35–47) | 11 (9·8–13) | 23 (21–25) | |
| Gestational age, weeks | |||||||||
| 24–27 | 190 000 (170 000–200 000) | 9000 (8300–9800) | 240 (180–320) | 6000 (5700–6200) | 120 000 (98 000–140 000) | 5400 (4300–6700) | 60 (19–190) | 3300 (2900–3700) | |
| 28–31 | 29 000 (26 000–32 000) | 1600 (1400–1700) | 71 (53–95) | 930 (870–1000) | 21 000 (17000–27 000) | 990 (720–1400) | 52 (25–110) | 620 (510–740) | |
| 32–34 | 8200 (7300–9100) | 620 (560–690) | 43 (34–54) | 320 (300–340) | 7700 (6000–9900) | 470 (360–620) | 62 (41–93) | 280 (240–330) | |
| 35–36 | 3600 (3300–4000) | 350 (320–380) | 35 (30–41) | 170 (160–180) | 3400 (2700–4200) | 290 (230–360) | 29 (20–42) | 140 (120–170) | |
| 37–38 | 1400 (1300–1500) | 170 (160–180) | 24 (22–26) | 82 (78–85) | 880 (730–1100) | 110 (93–120) | 17 (14–20) | 51 (46–56) | |
| ≥39 | 650 (610–680) | 78 (75–82) | 16 (15–17) | 42 (41–43) | 370 (320–420) | 51 (46–57) | 13 (11–14) | 27 (26–29) | |
| Sex | |||||||||
| Male | 1700 (1600–1800) | 150 (150–160) | 20 (19–21) | 81 (79–83) | 1000 (910–1100) | 96 (87–100) | 16 (14–18) | 50 (47–53) | |
| Female | 1400 (1300–1400) | 120 (120–130) | 18 (17–19) | 66 (64–68) | 810 (720–920) | 76 (69–85) | 14 (12–16) | 41 (38–44) | |
| Congenital anomaly | |||||||||
| No | 890 (860–930) | 77 (74–80) | 12 (12–13) | 43 (42–44) | 530 (480–590) | 52 (48–57) | 11 (10–13) | 29 (27–31) | |
| Yes | 23 000 (22 000–24 000) | 2200 (2100–2300) | 260 (250–280) | 1100 (1100–1200) | 17 000 (15 000–19 000) | 1500 (1300–1600) | 150 (130–190) | 730 (680–780) | |
| Maternal age, years | |||||||||
| <20 | 2200 (2000–2400) | 260 (240–280) | 25 (22–29) | 110 (110–120) | 980 (540–1800) | 230 (160–320) | 31 (19–50) | 89 (70–110) | |
| 20–25 | 1700 (1600–1800) | 170 (160–180) | 25 (23–27) | 88 (85–91) | 1100 (930–1400) | 130 (110–150) | 18 (14–23) | 62 (55–69) | |
| 25–30 | 1500 (1400–1600) | 130 (120–130) | 18 (17–20) | 71 (69–74) | 790 (680–920) | 86 (75–97) | 14 (12–16) | 43 (39–47) | |
| 30–35 | 1300 (1200–1300) | 110 (100–120) | 17 (16–19) | 61 (59–63) | 890 (780–1000) | 67 (59–77) | 13 (11–16) | 40 (37–43) | |
| 35–40 | 1500 (1400–1600) | 110 (100–120) | 16 (14–18) | 63 (60–66) | 860 (720–1000) | 76 (64–91) | 14 (11–18) | 43 (38–47) | |
| ≥40 | 2100 (1800–2400) | 160 (140–180) | 17 (13–22) | 87 (80–95) | 1600 (1200–2200) | 120 (84–160) | 18 (11–27) | 68 (56–82) | |
| Quintile of socioeconomic status | |||||||||
| Q1 | 210 (200–220) | 20 (19–21) | 2·5 (2·3–2·7) | 10 (9·9–11) | 120 (100–140) | 14 (12–15) | 1·8 (1·5–2·1) | 6·4 (5·9–6·9) | |
| Q2 | 170 (160–180) | 17 (16–17) | 2·1 (1·9–2·2) | 8·5 (8·2–8·8) | 92 (78–110) | 9·1 (7·8–11) | 1·8 (1·5–2·1) | 4·9 (4·5–5·4) | |
| Q3 | 140 (130–150) | 12 (11–13) | 1·8 (1·7–2·0) | 6·7 (6·4–7·0) | 62 (50–77) | 5·7 (4·7–6·9) | 1·5 (1·2–1·8) | 3·4 (3·0–3·8) | |
| Q4 | 120 (120–130) | 10 (9·7–11) | 1·7 (1·5–1·9) | 5·9 (5·7–6·2) | 65 (53–80) | 7·0 (5·9–8·3) | 1·3 (1·0–1·6) | 3·6 (3·3–4·1) | |
| Q5 | 110 (100–120) | 8·3 (7·6–9·0) | 1·4 (1·3–1·6) | 5·0 (4·7–5·2) | 120 (100–140) | 7·7 (6·5–9·0) | 1·1 (0·83–1·3) | 4·5 (4·1–5·0) | |
Data are unadjusted mortality rates per 100 000 child-years (95% CI). Q1 denotes the most deprived 20% of children. Q5 denotes the least deprived 20% of children. Q=quintile.