Psychological stress response and intervention strategies for elderly patients with hip fractures during the prehospital emergency period

Table 9 Comparison of Hamilton Anxiety and Depression Scale scores between the two groups at different follow-up time points (mean ± SD, points)

Group	n	HAM-A (3 months)	HAM-A (6 months)	HAM-A (12 months)	HAM-D (3 months)	HAM-D (6 months)	HAM-D (12 months)
Control group	40	10.23 ± 2.15	8.56 ± 1.89	7.12 ± 1.56	7.89 ± 1.78	6.45 ± 1.45	5.32 ± 1.23
Observation group	40	8.15 ± 1.78	6.32 ± 1.56	5.08 ± 1.34	6.12 ± 1.56	4.89 ± 1.23	3.78 ± 1.05
t	-	4.892	5.345	5.789	4.678	5.123	5.456
P value	-	< 0.01	< 0.01	< 0.01	< 0.01	< 0.01	< 0.01

HAM-A: Hamilton Anxiety Rating Scale; HAM-D: Hamilton Rating Scale for Depression.