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. Author manuscript; available in PMC: 2023 Nov 29.
Published in final edited form as: Am Econ J Econ Policy. 2023 Nov;15(4):37–74. doi: 10.1257/pol.20210625

Table 3:

Second Birth Means

Starting with MTF Access Starting Without MTF Access (3)+(7)=0
(1) (2) (3) (4) (5) (6) (7) (8) (9)
MTF/ MTF MTF/ No MTF Difference t-stat No MTF/ No MTF No MTF/ MTF Difference t-stat t-stat
Panel 1: Utilization
 Bed Days 2.132 2.225 0.092 5.192* 2.211 2.143 −0.068 3.230* 1.541
 Bassinet Days 2.294 2.433 0.139 3.460* 2.443 2.392 −0.051 0.997 1.963
 RWP 0.501 0.509 0.008 5.205* 0.508 0.504 −0.005 2.534* 2.219*
 Procedures 2.122 2.183 0.062 5.564* 2.186 2.097 −0.089 6.969* 1.315
 Diagnostics 0.084 0.122 0.038 4.977* 0.111 0.088 −0.023 2.636* 2.019
 C-Section 0.277 0.295 0.019 4.422* 0.298 0.284 −0.014 2.867* 1.272
Panel 2: Outcomes
 Severe Complication 0.041 0.026 −0.015 8.411* 0.031 0.039 0.008 3.980* 3.731*
 Preventable Complication 0.214 0.151 −0.063 17.070* 0.150 0.205 0.055 13.118* 3.454*
 Severe Acute Maternal Morbidity 0.013 0.011 −0.002 1.954 0.010 0.011 0.001 1.294 0.618
 28-Day Infant Mortality (per 1,000) 0.948 0.780 −0.168 0.587 1.056 0.728 −0.327 1.023 1.412
 1-Year Infant Mortality (per 1,000) 1.749 1.680 −0.069 0.174 1.619 1.613 −0.006 0.014 0.166
 Unplanned Readmission (per 1,000) 13.179 10.731 −2.448 2.356* 8.246 14.010 5.764 4.977* 2.236*
 Unplanned Child Readmission (per 1,000) 38.314 32.363 −5.951 3.301* 32.737 36.725 3.988 1.956 1.173
 30-Day Child Hosp. (per 1,000) 59.012 48.031 −10.981 4.997* 46.217 55.865 9.648 3.935* 0.968
 1-Year Unplanned Child Hosp. (per 1,000) 89.333 80.275 −9.058 3.346* 78.767 84.803 6.036 1.981 1.202
 Any 1-Year Child Hosp. (per 1,000) 109.814 95.761 −14.052 4.764* 92.645 104.181 11.536 3.486* 1.135
Sup-T Critical Value (0.05) 2.153 2.172 2.153
Share Giving Birth Off−Base 0.297 0.983 0.989 0.318
N 31,671 17,581 14,967 19,820

Notes: Column 1 shows means for second-birth outcomes for mothers who lived within 40 miles of an MTF hospital at the time of first birth, and who moved to within 40 miles of an MTF hospital at a different base. Column 2 shows second-birth outcome means for mothers who also lived within 40 miles of an MTF hospital at the time of first birth, but who moved to a different base and were no longer within 40 miles of an MTF hospital. Column 3 lists the difference between these groups. Column 4 gives the t-statistic from a t-test where the null hypothesis is that the means in column 1 and column 2 are the same. Columns 5 and 6 show second-birth outcome means for mothers who did not live within 40 miles of an MTF hospital at the time of first birth. Mothers in column 5 moved to a different base, but remained more than 40 miles away from an MTF hospital, while those in column 6 moved to within 40 miles of an MTF hospital at a different base. Column 7 lists the difference between the means in columns 5 and 6, while column 8 reports the t-statistic for a t-test where the null hypothesis is that there is no difference. The t-statistics reported in column 9 are from a t-test where the null hypothesis is that the sum of columns 3 and 7 is zero. The sup-t critical values reported at the bottom adjust for multiple hypothesis testing as suggested by Olea and Plagborg-Møller (2019).