instruction:
Indicate the presence of numerical data in the abstract (whether numerical data plays a key role in medical records), solely using the information from the abstract.
question:
Abstract: In six spontaneously breathing anesthetized dogs (pentobarbital sodium, 30 mg/kg) airflow, volume, and tracheal and esophageal pressures were measured. The active and passive mechanical properties of the total respiratory system, lung, and chest wall were calculated. The average passive values of respiratory system, lung, and chest wall elastances amounted to, respectively, 50.1, 32.3, and 17.7 cmH2O X l-1. Resistive pressure-vs.-flow relationships for the relaxed respiratory system, lung, and chest wall were also determined; a linear relationship was found for the former (the total passive intrinsic resistance averaged 4.1 cmH2O X l-1 X s), whereas power functions best described the others: the pulmonary pressure-flow relationship exhibited an upward concavity, which for the chest wall presented an upward convexity. The average active elastance and resistance of the respiratory system were, respectively, 64.0 cmH2O X l-1 and 5.4 cmH2O X l-1 X s. The greater active impedance reflects pressure losses due to force-length and force-velocity properties of the inspiratory muscles and those due to distortion of the respiratory system from its relaxed configuration.
Question: Does the abstract contain any numerical data?
answer:
Yes

question:
Abstract: The risk of developing spontaneous ventricular tachycardia (VT) and/or sudden death ("arrhythmic events") was prospectively assessed in 165 patients who survived acute myocardial infarction. Signal-averaged electrocardiograms (ECGs) were performed before hospital discharge and then serially at regular intervals over the following year. In addition, 24 hr Holter monitoring was performed and left ventricular ejection fraction was determined. Sixty-five patients (group 1) had abnormal signal-averaged ECGs (voltage in the last 40 msec of the filtered QRS less than 20 microV or filtered QRS duration greater than 120 msec), 92 had normal signal-averaged ECGs (group 2), and eight had bundle branch block (excluded from analysis). In group 1, spontaneous normalization of the voltage in the last 40 msec of the QRS complex occurred in 30% of patients after 12 months, although total filtered QRS duration did not change overall. During follow-up of up to 20 months (median 11), seven patients died suddenly and six presented again with spontaneous, symptomatic VT. Eleven of 65 (17%) group 1 patients had an arrhythmic event compared with one of 92 patients (1%) in group 2 (p less than .001). The sensitivity of the signal-averaged ECG as a predictor of arrhythmic events was 92% with a specificity of 62%. Patients with subsequent arrhythmic events had considerably lower voltage in the last 40 msec of the QRS (11.0 +/- 8.3 vs 32.0 +/- 21.9 microV; p less than .001) than those without such events, and longer filtered QRS complexes (121 +/- 14 vs 105 +/- 12 msec; p less than .001). Multivariate logistic regression determined that the signal-averaged ECG provided independent prognostic information from the presence of complex ventricular ectopy and the degree of left ventricular dysfunction assessed at the time of hospital discharge. Signal-averaged ECGs provide important prognostic information in identifying patients at risk of arrhythmic events after myocardial infarction. Dynamic changes in the terminal QRS voltage are observed during the first year after myocardial infarction.
Question: Does the abstract contain any numerical data?
answer:
Yes

question:
Abstract: Cryosurgery is now a widely accepted modality for the treatment of basal cell carcinomas. This article presents a practical approach to using cryosurgery for this purpose in the dermatologist's office. Understanding the cryobiologic basis of cryosurgery is a prerequisite. Aspects of treatment covered include selection and use of appropriate equipment, indications and contraindications for specific tumors, preoperative preparation, various treatment technics with clinical and instrumental depth-dose monitoring, postoperative care, cure rate, and cosmetic and functional end results. The overall results obtained by cryosurgery compare favorably with those obtained by other modalities. Cryosurgery is the treatment of choice for some basal cell carcinomas and a satisfactory alternate treatment for others.
Question: Does the abstract contain any numerical data?
answer:
No