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第46卷第5期 徐小俊,王诗绮,丁文秋,等. F⁃V曲线吸气平台的慢性阻塞性肺疾病患者临床特征探讨[J].
2026年5月 南京医科大学学报(自然科学版),2026,46(5):673-684 ·677 ·
表1 吸气平台组和非吸气平台组的一般资料比较
Table 1 Comparison of general information between the inspiratory plateau group and the non⁃inspiratory plateau group
Inspiratory plateau group Non⁃inspiratory plateau
2
Characteristic t/χ /Z P
(n=53) group(n=56)
Age(years,x ± s) 68.28 ± 6.20 67.61 ± 6.10 -0.574 0.567
Sex[n(%)] 0.015 0.904
Male 44(83.02) 46(82.14)
Female 09(16.98) 10(17.86)
Height(cm,x ± s) 166.30 ± 6.67 166.95 ± 7.880 0.460 0.647
Weight(kg,x ± s) 62.72 ± 11.80 064.86 ± 10.17 1.013 0.313
BMI[kg/m ,M(P25,P75 )] 23.51(19.72,24.71) 22.52(20.67,25.13) -0.700 0.484
2
Smoking index[packs·years,M(P25,P75 )] 35.00(20.00,40.00) 30.00(16.25,45.00) -0.649 0.516
Inhaled drugs[n(%)] 1.930 0.667
Ⅰ 42(79.25) 39(69.64)
Ⅱ 1(1.89) 3(5.36)
Ⅲ 1(1.89) 1(1.79)
Ⅳ 09(16.98) 13(23.21)
Pulmonary function stages[n(%)] 0.155 0.694
GOLD stage 2 37(69.81) 41(73.21)
GOLD stage 3 16(30.19) 15(26.79)
Ⅰ:no use or irregular use of inhaled medications;Ⅱ:use of one inhaled long⁃acting bronchodilator[long⁃acting β2⁃agonist(LABA)or long⁃acting
muscarinic antagonist(LAMA)];Ⅲ:use of two inhaled long⁃acting bronchodilators;Ⅳ:combination of inhaled corticosteroids and 1-2 inhaled long⁃
acting bronchodilators.
表2 吸气平台组和非吸气平台组的肺通气功能比较
Table 2 Comparison of pulmonary ventilation function between the inspiratory plateau group and the non⁃inspiratory
plateau group
Inspiratory plateau group Non⁃inspiratory plateau
Characteristic Z/t P
(n=53) group(n=56)
FEV1%pred[%,M(P25,P75 )] 54.50(48.50,58.00) 53.80(49.65,56.90) -0.349 0.727
FEV1/FVC%pred[%,M(P25,P75 )] 61.40(54.85,67.90) 60.10(55.93,63.80) -0.843 0.399
FVC%pred[%,M(P25,P75 )] 83.70(81.40,89.10) 86.60(82.63,90.10) -1.886 0.059
FEF50%pred[%,M(P25,P75 )] 15.80(13.25,19.85) 15.20(12.30,18.75) -0.916 0.360
MMEF%pred[%,M(P25,P75 )] 16.20(14.00,20.10) 16.30(13.48,18.78) -0.725 0.469
PEF%pred[%,M(P25,P75 )] 43.10(35.60,51.10) 53.05(43.33,59.73) -4.187 <0.001
PIF[L/s,M(P25,P75 )] 3.07(2.48,3.60) 4.87(4.01,5.67) -7.121 <0.001
PEF/PIF[M(P25,P75 )] 1.04(0.85,1.22) 0.79(0.70,0.94) -5.259 <0.001
FEV1/PEF(s,x ± s) 0.47 ± 0.11 0.37 ± 0.08 -5.046 <0.001
VCmax%pred[%,M(P25,P75 )] 86.00(81.20,93.10) 87.75(84.20,92.65) -1.022 0.307
FEF50%%pred:forced expiratory flow at 50% of FVC as a percentage of predicted value;VCmax%pred:maximal vital capacity as a percentage of
predicted value.
R20%pred、Rcentral 纳入多因素Logistic 回归方程,分 的期望频数与观察频数之间的差异无统计学意义,
析吸气平台的相关因素,构建诊断中重度稳定期 即模型拟合度较好,模型校正良好。结果发现,PIF
COPD 患者合并吸气平台的多因素 Logistic 回归模 对中重度稳定期 COPD 患者合并吸气平台的诊断
型。通过向后回归得出的多因素回归模型包括 具有统计学意义(OR=0.406,95%CI:0.180~0.914,
PIF、PEF/PIF、FEV1/PEF 和 Rcentral,而排除 TLC% P=0.030)。PEF/PIF 对中重度稳定期 COPD 患者合
pred、R5%pred、R20%pred。Hosmer⁃Lemeshow 拟合优 并吸气平台的诊断具有统计学意义(OR=1.073,
度检验得到的 P 值为 0.957,表明由预测概率获得 95%CI:1.029~1.119,P < 0.001)。FEV1/PEF 对中重

