**Table 3:  Probit estimates (40 km):  Impact on incidence of infant mortality - salinity exposure by month before birth**

||**1**|**2**|**3**|**4**|**5**|**6**|**7**|**8**|**9**|
|---|---|---|---|---|---|---|---|---|---|
|**Pre-natal salinity**|**0.020**|**0.007**|**0.005**|**-0.003**|**0.003**|**-0.017**|**-0.005**|**0.000**|**-0.002**|
||**(2.21)***|**(0.64)**|**(0.45)**|**(0.27)**|**(0.33)**|**(1.48)**|**(0.58)**|**(0.01)**|**(0.23)**|
|**Female child**|**-0.024**|**-0.020**|**-0.018**|**-0.021**|**-0.021**|**-0.062**|**-0.038**|**-0.040**|**-0.006**|
||**(0.43)**|**(0.36)**|**(0.33)**|**(0.37)**|**(0.37)**|**(1.08)**|**(0.67)**|**(0.69)**|**(0.10)**|
|**Male household head**|**0.400**<br>**(3.10)****|**0.406**<br>**(3.15)****|**0.406**<br>**(3.14)****|**0.412**<br>**(3.19)****|**0.410**<br>**(3.17)****|**0.408**<br>**(3.13)****|**0.397**<br>**(3.03)****|**0.388**<br>**(2.97)****|**0.497**<br>**(3.34)****|
|**Mother age**|**-0.014**<br>**(2.97)****|**-0.015**<br>**(3.04)****|**-0.015**<br>**(3.05)****|**-0.015**<br>**(3.09)****|**-0.015**<br>**(3.05)****|**-0.021**<br>**(4.07)****|**-0.020**<br>**(3.85)****|**-0.019**<br>**(3.73)****|**-0.022**<br>**(4.12)****|
|**Mother education (years)**|**-0.007**|**-0.007**|**-0.007**|**-0.008**|**-0.008**|**-0.004**|**-0.003**|**-0.004**|**-0.001**|
||**(1.05)**|**(1.05)**|**(1.05)**|**(1.08)**|**(1.10)**|**(0.62)**|**(0.48)**|**(0.60)**|**(0.18)**|
|**Wealth index - top 40%**|**-0.183**|**-0.167**|**-0.167**|**-0.158**|**-0.162**|**-0.159**|**-0.154**|**-0.163**|**-0.137**|
||**(2.50)***|**(2.28)***|**(2.28)***|**(2.16)***|**(2.20)***|**(2.14)***|**(2.07)***|**(2.16)***|**(1.79)**|
|**Flush toilet**|**-0.226**|**-0.227**|**-0.224**|**-0.224**|**-0.217**|**-0.190**|**-0.209**|**-0.196**|**-0.316**|
||**(1.95)**|**(1.96)**|**(1.93)**|**(1.93)**|**(1.86)**|**(1.62)**|**(1.77)**|**(1.66)**|**(2.53)***|
|**Pit latrine**|**-0.106**|**-0.103**|**-0.100**|**-0.096**|**-0.087**|**-0.110**|**-0.126**|**-0.123**|**-0.173**|
||**(1.43)**|**(1.38)**|**(1.33)**|**(1.28)**|**(1.17)**|**(1.45)**|**(1.65)**|**(1.60)**|**(2.22)***|
|**Tubewell water**|**-0.041**|**-0.034**|**-0.030**|**-0.025**|**-0.037**|**-0.050**|**-0.060**|**-0.068**|**0.015**|
||**(0.48)**|**(0.40)**|**(0.35)**|**(0.29)**|**(0.43)**|**(0.58)**|**(0.69)**|**(0.77)**|**(0.16)**|
|**Spring water**|**0.425**<br>**(2.69)****|**0.437**<br>**(2.75)****|**0.436**<br>**(2.74)****|**0.455**<br>**(2.85)****|**0.463**<br>**(2.87)****|**0.474**<br>**(2.92)****|**0.482**<br>**(2.95)****|**0.399**<br>**(2.35)***|**0.334**<br>**(1.78)**|
|**Surface water**|**-0.187**|**-0.151**|**-0.142**|**-0.118**|**-0.152**|**-0.072**|**-0.111**|**-0.140**|**-0.048**|
||**(0.72)**|**(0.58)**|**(0.55)**|**(0.45)**|**(0.59)**|**(0.28)**|**(0.43)**|**(0.54)**|**(0.18)**|
|**Clean cooking fuel**|**0.196**|**0.187**|**0.185**|**0.183**|**0.185**|**0.089**|**0.105**|**0.114**|**0.106**|
||**(1.66)**|**(1.59)**|**(1.57)**|**(1.55)**|**(1.56)**|**(0.71)**|**(0.83)**|**(0.90)**|**(0.79)**|
|**Constant**|**-1.803**<br>**(8.52)****|**-1.773**<br>**(8.36)****|**-1.769**<br>**(8.32)****|**-1.754**<br>**(8.26)****|**-1.765**<br>**(8.30)****|**-1.541**<br>**(7.12)****|**-1.637**<br>**(7.49)****|**-1.642**<br>**(7.44)****|**-1.715**<br>**(7.36)****|
|**Observations**|**8,183**|**8,108**|**8,020**|**7,956**|**7,881**|**7,816**|**7,730**|**7,634**|**7,526**|

**Absolute value of t statistics in parentheses * significant at 5%; ** significant at 1%**

13