extremely significantP < 0.001
Results showed clear age gradients in intervention effects: In the ≤ 45 years group, the intervention group's FSFI total score was on average 6.8 points higher than the control group (24.6 ± 3.2 vs 17.8 ± 3.0), with 38.2% improvement amplitude and extremely significant statistical differences ( P < 0.001); in the 46-55 years group, intervention effects were also significant, with FSFI total scores improving by 5.9 points (23.9 ± 3.4 vs 18.0 ± 3.1), representing 32.8% improvement ( P < 0.001); in the > 55 years group, although intervention still produced positive effects, the degree of improvement was relatively weaker, with FSFI total scores improving by only 3.7 points (21.5 ± 3.8 vs 17.8 ± 3.5), representing 20.8% improvement, with statistical differences present but reduced significance( P = 0.032, Figure 4 ).