Gestational age/Birth weight | 1995-2005 | 2005 | ||||
---|---|---|---|---|---|---|
Rate (95 % CI) | Rate Ratio (95 % CI) | Rate (95 % CI) | Rate Ratio (95 % CI) | |||
GA (weeks) | ≥22 | Canada | 1.6 (1.5–1.6) | 1.62 (1.57–1.68) | 1.4 (1.2–1.5) | 1.54 (1.36–1.73) |
USA | 2.4 (2.3–2.4) | 2.41 (2.40–2.43) | 2.3 (2.3–2.3) | 2.59 (2.54–2.65) | ||
Denmark | 1.2 (1.1–1.3) | 1.17 (1.09–1.25) | 1.0 (0.8–1.3) | 1.12 (0.86–1.43) | ||
Finland | 1.0 (1.0–1.1) | 1.00 | 0.9 (0.7–1.2) | 1.00 | ||
Norway | 1.1 (1.1–1.2) | 1.18 (1.09–1.26) | 0.7 (0.5–1.0) | 0.79 (0.56–1.08) | ||
Sweden | 1.1 (1.0–1.2) | 1.14 (1.07–1.21) | 1.1 (0.9–1.3) | 1.19 (0.98–1.44) | ||
≥28 | Canada | 1.5 (1.4–1.5) | 1.49 (1.44–1.54) | 1.2 (1.1–1.4) | 1.43 (1.26–1.61) | |
USA | 2.1 (2.1–2.1) | 2.13 (2.11–2.14) | 2.0 (1.9–2.0) | 2.32 (2.27–2.37) | ||
Denmark | 1.2 (1.1–1.2) | 1.15 (1.07–1.23) | 0.9 (0.7–1.2) | 1.04 (0.79–1.35) | ||
Finland | 1.0 (0.9–1.1) | 1.00 | 0.9 (0.6–1.1) | 1.00 | ||
Norway | 1.0 (1.0–1.1) | 1.06 (0.98–1.15) | 0.6 (0.4–0.8) | 0.70 (0.48–0.98) | ||
Sweden | 1.0 (0.9–1.1) | 1.03 (0.96–1.09) | 0.9 (0.7–1.1) | 1.07 (0.86–1.31) | ||
BW (grams) | ≥500 | Canada | 1.6 (1.5–1.6) | 1.57 (1.52–1.62) | 1.4 (1.2–1.5) | 1.53 (1.36–1.72) |
USA | 2.3 (2.3–2.3) | 2.32 (2.30–2.33) | 2.3 (2.2–2.3) | 2.56 (2.51–2.61) | ||
Denmark | 1.2 (1.1–1.3) | 1.18 (1.10–1.26) | 1.0 (0.8–1.3) | 1.12 (0.86–1.42) | ||
Finland | 1.0 (0.9–1.1) | 1.00 | 0.9 (0.7–1.2) | 1.00 | ||
Norway | 1.1 (1.1–1.2) | 1.13 (1.05–1.22) | 0.7 (0.5–0.9) | 0.77 (0.55–1.05) | ||
Sweden | 1.1 (1.0–1.2) | 1.10 (1.04–1.16) | 1.0 (0.9–1.3) | 1.18 (0.97–1.43) | ||
≥1000 | Canada | 1.5 (1.4–1.5) | 1.51 (1.46–1.57) | 1.2 (1.0–1.3) | 1.52 (1.33–1.72) | |
USA | 2.0 (2.0–2.1) | 2.13 (2.12–2.14) | 1.9 (1.9–2.0) | 2.48 (2.43–2.54) | ||
Denmark | 1.1 (1.1–1.2) | 1.20 (1.12–1.28) | 0.9 (0.7–1.2) | 1.00 (0.76–1.30) | ||
Finland | 1.0 (0.9–1.0) | 1.00 | 0.8 (0.6–1.0) | 1.00 | ||
Norway | 1.0 (1.0–1.1) | 1.09 (1.01–1.18) | 0.6 (0.4–0.8) | 0.76 (0.53–1.06) | ||
Sweden | 1.0 (0.9–1.1) | 1.04 (0.98–1.11) | 0.9 (0.7–1.1) | 1.16 (0.93–1.42) | ||
All live births | Canada | 1.6 (1.5–1.6) | 1.57 (1.52–1.62) | 1.4 (1.2–1.5) | 1.54 (1.36–1.73) | |
USA | 2.4 (2.3–2.4) | 2.34 (2.32–2.35) | 2.3 (2.3–2.3) | 2.60 (2.54–2.65) | ||
Denmark | 1.2 (1.1–1.3) | 1.17 (1.09–1.25) | 1.0 (0.8–1.3) | 1.12 (0.86–1.43) | ||
Finland | 1.0 (0.9–1.1) | 1.00 | 0.9 (0.7–1.2) | 1.00 | ||
Norway | 1.1 (1.1–1.2) | 1.14 (1.06–1.22) | 0.7 (0.5–1.0) | 0.79 (0.56–1.08) | ||
Sweden | 1.1 (1.0–1.2) | 1.10 (1.04–1.17) | 1.1 (0.9–1.3) | 1.19 (0.98–1.44) |