The U.S. has not seen any negative effects on marriage, divorce or living arrangements among all couples since Massachusetts issued the first state-sanctioned, same-sex marriage licenses 20 years ago, a new analysis says.

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The analysis found that after states legalized marriage for same-sex couples, marriage numbers jumped in those states at rates greater than what could be accounted for by the new marriages of same-sex couples alone.

Researchers found no consistent evidence of an increase in divorce as a consequence of legalizing marriage for same-sex couples.

The analysis suggests that issuing marriage licenses to same-sex couples had, if anything, led to a small positive impact on marriage attitudes among high school seniors.