Hong Kong leader John Lee Ka-chiu is suffering from sciatica, the Chief Executive’s Office has revealed, after he appeared to be in pain while standing for 1½ hours at the lawmakers’ swearing-in ceremony on New Year’s Day, with a cane placed nearby. The office said on Thursday that Lee was suffering from sciatica, but stopped short of revealing details of the city’s leader’s health condition. Sciatica is a condition that causes pain along the sciatic nerve, which is the largest in the body,...