2.
ICPP非肥胖组及肥胖组与正常对照组DC、AC、HRV及BMI的比较
| （x±s） | |||||||||
| 组别 | 例数 | DC (ms) | AC (ms) | SDNN (ms) | SDANN (ms) | RMSSD (ms) | LF (ms2) | HF (ms2) | BMI (kg/m2) |
| 注：a示与正常对照组比较，P＜0.05；b示与ICPP非肥胖组比较，P＜0.05。[ICPP]特发性性早熟；[DC]心率减速力；[AC]心率加速力；[SDNN] RR间期总体标准差；[SDANN] RR间期平均值的标准差；[RMSSD]相邻RR间期差值的均方根；[LF]低频功率；[HF]高频功率；[BMI]体重指数。 | |||||||||
| 正常对照组 | 68 | 7.5±1.6 | -8.1±1.2 | 127±29 | 113±28 | 45±16 | 720±341 | 555±257 | 17.4±1.2 |
| ICPP非肥胖组 | 30 | 7.4±1.4 | -7.8±1.5 | 118±33 | 103±27 | 40±14 | 672±409 | 521±362 | 17.8±1.2 |
| ICPP肥胖组 | 36 | 5.8±1.5a, b | -6.5±1.8a, b | 108±29a | 98±27a | 32±12a, b | 524±306a | 323±234a, b | 21.4±1.6a, b |
| F值 | 15.775 | 14.210 | 4.718 | 3.797 | 10.030 | 3.771 | 8.469 | 112.186 | |
| P值 | < 0.001 | < 0.001 | 0.011 | 0.025 | < 0.001 | 0.026 | < 0.001 | < 0.001 | |