I have the below model, how should I interpret B6: There is a decrease in children by 0.21(It does not make sense???) if an African- American woman live in urban area than rural area, other thing constant and it is significant(p-value:0.000).

. regress children age agesq spirit protest catholic urban educ elec educ_elec, robust cformat(%9.3f)

Linear regression Number of obs = 4358
F( 9, 4348) = 648.14
Prob > F = 0.0000
R-squared = 0.5742
Root MSE = 1.4514
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| Robust
children | Coef. Std. Err. t P>|t| [95% Conf. Interval]
-------------+----------------------------------------------------------------
age | 0.343 0.019 17.90 0.000 0.306 0.381
agesq | -0.003 0.000 -7.91 0.000 -0.003 -0.002
spirit | 0.135 0.056 2.40 0.017 0.025 0.246
protest | 0.071 0.066 1.07 0.283 -0.059 0.200
catholic | 0.116 0.079 1.47 0.143 -0.039 0.271
urban | -0.210 0.046 -4.56 0.000 -0.300 -0.120
educ | -0.072 0.007 -10.00 0.000 -0.086 -0.058
electric | -0.129 0.183 -0.70 0.482 -0.489 0.230
educ_elec | -0.022 0.018 -1.18 0.237 -0.057 0.014
_cons | -4.360 0.250 -17.45 0.000 -4.850 -3.870
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