Sorry to bring the conversation back to inside legs, but I can add to the data here, confirming the short body/long leg theory for women. 5'4", 30" inside leg. Have happily shared jeans with my 5'8" bloke when I was a bit thinner.
But women's trousers are still *always* too long for me straight from the shop, unless it's M&S who do short, medium & long.