KANSAS CITY — Peek inside almost any church.

Women will usually outnumber men, and usually by a long shot.

It’s no wonder that a recent survey by the Barna Group saying women’s attendance is declining has some church leaders concerned.

Commenting on the results, George Barna, the group’s leader, said, “For years, many church leaders have understood that ‘as go women, so goes the American church.”‘

Among the findings from the survey that covered 1991 to 2011 were:

• Church attendance among women dropped by 11 percentage points to 44 percent of the U.S. population. This means a majority of women no longer attend church services during a typical week.

• Bible-reading among women (other than during services) has declined from 50 percent in 1991 to 40 percent today.

• Women volunteering at churches had dropped by 9 percent and Sunday School involvement dropped by 7 percent.

• The only increasing behavior covered in the survey was the number of women who don’t attend church: 17 percent.

• The only stable religious behavior for the time period was the percentage of women who attend a church of 600 or more, which remained at 16 percent.

“While sobering, the findings of this survey are not surprising, and I would agree with Barna’s appraisal,” said the Rev. Paul Rock, pastor of Second Presbyterian Church in Kansas City.

“Since women still tend to define many family traditions, a drop-off in women means a drop-off in men and children as well. So this is a significant change in American culture that most churches have not adapted to well.

“I don’t think God is worried, but I do think God is waiting for churches to wake up and respond to the reality of women’s lives today,” he said.

Most women have busy careers that they balance with caring for their families, among other things. As for involvement, working women are not going to be able to show up at a daytime book club meeting, and few can make a three-hour meeting on Saturday, he said.