Table 2.

Effect of non-benzodiazepine hypnotic drug use on the risk of hip fracture in a case-crossover study of nursing home residents

Hazard period	Number of exposed participants	Odds ratio	95% Confidence intervals
Any hypnotic drug use
0–15 days before the hip fracture	622	1.47	1.24, 1.74
0–30 days before the hip fracture	927	1.66	1.45, 1.90
New hypnotic drug use
0–15 days before the hip fracture	366	2.20	1.76, 2.74
0–30 days before the hip fracture	564	1.90	1.60, 2.26