Appendix Table 3.
Different Distance Cutoffs and Interactions with Wind Speed
| Low Birth Weight (<2500g) | Gestation (weeks) | Any Abnormal Conditions (1996–2004) | Any Complications of Labor (1996–2004) | Low Birth Weight (<2500g) | Gestation (weeks) | Any Abnormal Conditions (1996–2004) | Any Complications of Labor (1996–2004) | |
|---|---|---|---|---|---|---|---|---|
| A. Different Distance Cutoffs | X = 25 KM | X = 30 KM | ||||||
|
| ||||||||
| Hurricane within X km During 1st Trimester | −0.0047 (0.0131) | 0.0281 (0.0882) | 0.0414** (0.0165) | 0.0201 (0.0240) | −0.0021 (0.0100) | −0.0378 (0.0703) | 0.0363** (0.0137) | 0.0213 (0.0195) |
| Hurricane within X km During 2nd Trimester | −0.0049 (0.0125) | −0.0153 (0.0917) | 0.0003 (0.0178) | 0.0142 (0.0231) | −0.0021 (0.0093) | −0.0433 (0.0687) | 0.0136 (0.0142) | 0.0237 (0.0193) |
| Hurricane within X km During 3rd Trimester | 0.0054 (0.0125) | −0.1201 (0.0808) | 0.0363+ (0.0187) | 0.0485+ (0.0248) | 0.0089 (0.0100) | −0.0431 (0.0649) | 0.0389** (0.0147) | 0.0409** (0.0196) |
|
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| B. Interactions with Maximum Wind Speed | ||||||||
| Max Wind Speed * Hurricane within X km, 1st Trimester
|
−0.0007 (0.0017) | 0.0067 (0.0109) | 0.0059** (0.0024) | 0.0027 (0.0035) | −0.0006 (0.0013) | −0.0013 (0.0087) | 0.0054** (0.0020) | 0.0030 (0.0028) |
| Max Wind Speed * Hurricane within X km, 2nd Trimester
|
−0.0002 (0.0015) | −0.0077 (0.0126) | 0.0003 (0.0027) | 0.0015 (0.0035) | 0.0002 (0.0012) | −0.0105 (0.0094) | 0.0022 (0.0021) | 0.0032 (0.0029) |
| Max Wind Speed * Hurricane within X km, 3rd Trimester | −0.0001 (0.0014) | −0.0148 (0.0098) | 0.0052+ (0.0027) | 0.0076** (0.0037) | 0.0008 (0.0012) | −0.0027 (0.0076) | 0.0056** (0.0022) | 0.0065** (0.0029) |
|
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| C. Different Distance Cutoffs | X = 60 KM | X = 75 KM | ||||||
|
| ||||||||
| Hurricane within X km During 1st Trimester
|
−0.0037 (0.0041) | −0.0497+ (0.0298) | 0.0050 (0.0051) | 0.0195** (0.0080) | −0.0035 (0.0034) | −0.0327 (0.0252) | 0.0035 (0.0041) | 0.0115+ (0.0067) |
| Hurricane within X km During 2nd Trimester
|
−0.0004 (0.0039) | −0.0173 (0.0276) | 0.0090+ (0.0053) | 0.0112 (0.0078) | 0.0004 (0.0032) | −0.0264 (0.0224) | 0.0066 (0.0041) | 0.0088 (0.0063) |
| Hurricane within X km During 3rd Trimester | 0.0006 (0.0039) | 0.0063 (0.0270) | 0.0041 (0.0054) | 0.0264** (0.0083) | −0.0023 (0.0032) | 0.0191 (0.0228) | −0.0016 (0.0042) | 0.0154** (0.0068) |
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| D. Interactions with Maximum Wind Speed | ||||||||
|
| ||||||||
| Max Wind Speed * Hurricane within X km, 1st Trimester
|
−0.0002 (0.0005) | −0.0055 (0.0036) | 0.0008 (0.0008) | 0.0024** (0.0012) | −0.0001 (0.0004) | −0.0032 (0.0029) | 0.0004 (0.0005) | 0.0009 (0.0009) |
| Max Wind Speed * Hurricane within X km, 2nd Trimester
|
0.0003 (0.0005) | −0.0053+ (0.0032) | 0.0014+ (0.0008) | 0.0012 (0.0012) | 0.0003 (0.0004) | −0.0058** (0.0024) | 0.0006 (0.0005) | 0.0005 (0.0008) |
| Max Wind Speed * Hurricane within X km, 3rd Trimester | −0.0001 (0.0004) | 0.0026 (0.0027) | 0.0006 (0.0008) | 0.0038** (0.0013) | −0.0003 (0.0003) | 0.0023 (0.0022) | −0.0004 (0.0005) | 0.0011 (0.0008) |
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| N | 485,048 | 485,111 | 301,683 | 301,683 | 485,048 | 485,111 | 301,683 | 301,683 |
Notes: Each column in each panel is a separate regression. See notes under Tables 1 and 4 for information about the sample, the storms and hurricanes, and the estimation methods and controls. Maximum wind speed is in tens of miles per hour. The maximum wind speeds are: 60 mph for Allison, 145 mph for Bret, 70 mph for Charley, 85 mph for Claudette, 100 mph for Dolly, 65 mph for Frances, 145 mph for Ike, and 180 mph for Rita. For each outcome, births by mothers who have at most one child with non-missing data for that outcome are omitted.
Significance levels:
+
p<0.10
**
p<0.05
***
p<0.001