From: The inner state differences of preterm birth rates in Brazil: a time series study
Center-east-south | Model | R2 | p | Trend |
---|---|---|---|---|
<37 weeks | y = 6.06 + 0.13x + 0.06x2 | 0.89 | <0.001 | Growing |
<28 weeks | y = 0.42 + 0.01x + 0.002x2 | 0.91 | <0.001 | Growing |
28 - <32 | y = 0.67 + 0.01x + 0.004x2 | 0.90 | <0.001 | Growing |
32 - <37 | y = 4.98 + 0.11x + 0.06x2 | 0.89 | <0.001 | Growing |
West | ||||
<37 weeks | y = 6.26 + 0.17x + 0.06x2 | 0.76 | 0.001 | Growing |
<28 weeks | y = 0.41 + 0.01x | 0.64 | 0.002 | Growing |
28 - <32 | y = 0.78-0.003x | 0.04 | 0.558 | Constant |
32 - <37 | y = 5.06 + 0.16x + 0.06x2 | 0.79 | <0.001 | Growing |
Northeast | ||||
<37 weeks | y = 6.70 + 0.27x + 0.05x2 | 0.96 | <0.001 | Growing |
<28 weeks | y = 0.44 + 0.01x | 0.92 | <0.001 | Growing |
28 - <32 | y = 0.71 + 0.02x | 0.88 | <0.001 | Growing |
32 - <37 | y = 6.14 + 0.29x | 0.75 | <0.001 | Growing |
North | ||||
<37 weeks | y = 7.55 + 0.35x | 0.86 | <0.001 | Growing |
<28 weeks | y = 0.48 + 0.01x | 0.70 | 0.001 | Growing |
28 - <32 | y = 0.79 + 0.02x | 0.76 | <0.001 | Growing |
32 - <37 | y = 6.28 + 0.33x | 0.85 | <0.001 | Growing |