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'study': [3], 'examined': [4], 'whether': [5], 'the': [6, 54, 61, 182], 'severity': [7, 55], 'of': [8, 56, 181], 'chronic': [9], 'obstructive': [10], 'lung': [11, 30], 'disease': [12], '(COPD)': [13], 'affects': [14], 'surgical': [15], 'outcomes.Methods:': [16], 'The': [17, 39, 97], 'subjects': [18], 'were': [19, 65, 88, 99, 130, 176], '243': [20], 'consecutive': [21], 'patients': [22], 'who': [23], 'underwent': [24], 'lobectomy': [25], 'for': [26, 42, 194], 'clinical': [27], 'stage': [28], 'IA': [29], 'cancer': [31], 'from': [32], '1999': [33], 'to': [34, 52, 179], '2008': [35], 'in': [36, 58, 101, 104, 109, 146], 'our': [37], 'hospital.': [38], 'Global': [40], 'Initiative': [41], 'Chronic': [43], 'Obstructive': [44], 'Lung': [45], 'Disease': [46], '(GOLD)': [47], 'grading': [48], 'system': [49], 'was': [50, 141, 165], 'used': [51], 'classify': [53], 'COPD': [57, 68, 129], 'smokers.Results:': [59], 'Among': [60], '149': [62], 'smokers,': [63, 153], '62': [64], 'diagnosed': [66], 'with': [67, 90, 132, 167, 187], '(25': [69], 'as': [70, 74, 79], 'GOLD': [71, 75, 80, 105, 110, 148, 151, 163, 183, 188], '1,': [72], '33': [73], '2,': [76], 'and': [77, 93, 107, 126, 144, 150, 171, 197], '4': [78], '3).': [81], 'In': [82, 116], 'univariate': [83, 117], 'analysis,': [84, 118], 'postoperative': [85, 168], 'pulmonary': [86, 169, 195], 'complications': [87, 170, 196], 'associated': [89, 131, 166], 'male': [91], 'sex': [92], 'more': [94, 127], 'severe': [95, 128], 'COPD.': [96], 'frequencies': [98], '17.1%': [100], 'non-COPD,': [102, 147], '24.0%': [103], '1-COPD,': [106, 149], '46.0%': [108], '2/3-COPD': [111, 152, 164, 184, 189], 'smokers': [112], '(p': [113, 155], '=': [114, 156], '0.0006).': [115], 'older': [119], 'age,': [120], 'smoking': [121, 124], 'history,': [122], 'higher': [123], 'pack-years': [125], 'poor': [133], 'relapse-free': [134, 172], 'survival.': [135, 173], 'Relapse-free': [136], 'survival': [137], 'at': [138, 191], 'five': [139], 'years': [140], '80.7%,': [142], '66.9%,': [143], '61.3%': [145], 'respectively': [154], '0.0005).': [157], 'Multivariate': [158], 'analyses': [159], 'showed': [160], 'that': [161], 'only': [162], 'Inhaled': [174], 'bronchodilators': [175], 'prescribed': [177], 'preoperatively': [178], '24.3%': [180], 'group.Conclusion:': [185], 'Smokers': [186], 'are': [190], 'high': [192], 'risk': [193], 'have': [198], 'an': [199], 'unfavorable': [200], 'long-term': [201], 'prognosis.': [202]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2087012352', 'counts_by_year': [{'year': 2023, 'cited_by_count': 1}, {'year': 2022, 'cited_by_count': 2}, {'year': 2021, 'cited_by_count': 4}, {'year': 2020, 'cited_by_count': 4}, {'year': 2019, 'cited_by_count': 5}, {'year': 2018, 'cited_by_count': 4}, {'year': 2017, 'cited_by_count': 5}, {'year': 2016, 'cited_by_count': 3}, {'year': 2015, 'cited_by_count': 2}], 'updated_date': '2025-01-02T15:12:35.642701', 'created_date': '2016-06-24'}