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| a | b/outputs/data_analysis.txt | ||
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| 1 | ------------ PRE-PROCESSED DATA ANALYSIS ------------ |
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| 2 | |||
| 3 | We perform data analysis on each features of the PLCO and NLST dataset. |
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| 4 | Number of participants: |
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| 5 | - PLCO: 55161 |
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| 6 | - NLST: 48595 |
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| 7 | |||
| 8 | --- Feature analysis --- |
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| 9 | |||
| 10 | Age: This feature captures the person’s age. |
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| 11 | -------------- ----- ------ ----- ------ |
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| 12 | Age PLCO PLCO % NLST NLST % |
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| 13 | <= 50 0 0.0 1 0.0 |
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| 14 | 50 < ... <= 60 27337 49.6 24861 51.2 |
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| 15 | 60 < ... <= 70 25120 45.5 20901 43.0 |
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| 16 | > 70 2704 4.9 2832 5.8 |
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| 17 | Missing 0 0.0 0 0.0 |
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| 18 | -------------- ----- ------ ----- ------ |
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| 19 | |||
| 20 | Smoking cessation age: This feature describes the age at which the person stopped smoking. |
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| 21 | --------------------- ----- ------ ----- ------ |
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| 22 | Smoking cessation age PLCO PLCO % NLST NLST % |
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| 23 | <= 30 10470 19.0 2 0.0 |
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| 24 | 30 < ... <= 40 11886 21.5 130 0.3 |
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| 25 | 40 < ... <= 50 11447 20.8 7025 14.5 |
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| 26 | 50 < ... <= 60 8649 15.7 14071 29.0 |
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| 27 | > 60 1942 3.5 4378 9.0 |
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| 28 | Missing 10767 19.5 22989 47.3 |
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| 29 | --------------------- ----- ------ ----- ------ |
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| 30 | |||
| 31 | Smoking status: This feature describes if the person is a current or a former cigarette smoker at the beginning of the study. |
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| 32 | -------------- ----- ------ ----- ------ |
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| 33 | Smoking status PLCO PLCO % NLST NLST % |
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| 34 | Active 9965 18.1 22842 47.0 |
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| 35 | Former 45196 81.9 25753 53.0 |
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| 36 | Missing 0 0.0 0 0.0 |
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| 37 | -------------- ----- ------ ----- ------ |
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| 38 | |||
| 39 | Pack-years: This feature refers to the number of packs smoked per day multiplied by the number of years during which the person smoked. |
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| 40 | --------------- ----- ------ ----- ------ |
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| 41 | Pack years PLCO PLCO % NLST NLST % |
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| 42 | <= 25 26981 48.9 8 0.0 |
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| 43 | 25 < ... <= 50 16147 29.3 26746 55.0 |
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| 44 | 50 < ... <= 100 9448 17.1 19544 40.2 |
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| 45 | > 100 1434 2.6 2297 4.7 |
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| 46 | Missing 1151 2.1 0 0.0 |
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| 47 | --------------- ----- ------ ----- ------ |
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| 48 | |||
| 49 | Smoking onset age: This feature indicates the age at which the person started smoking. |
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| 50 | ----------------- ----- ------ ----- ------ |
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| 51 | Smoking onset age PLCO PLCO % NLST NLST % |
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| 52 | <= 15 10169 18.4 17927 36.9 |
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| 53 | 15 < ... <= 20 33760 61.2 25411 52.3 |
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| 54 | > 20 10950 19.9 5256 10.8 |
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| 55 | Missing 282 0.5 1 0.0 |
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| 56 | ----------------- ----- ------ ----- ------ |
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| 57 | |||
| 58 | Years smoked: This feature describes the total number of years during which the person smoked. |
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| 59 | -------------- ----- ------ ----- ------ |
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| 60 | Smoking years PLCO PLCO % NLST NLST % |
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| 61 | <= 10 8800 16.0 2 0.0 |
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| 62 | 10 < ... <= 20 11761 21.3 292 0.6 |
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| 63 | 20 < ... <= 30 11532 20.9 5134 10.6 |
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| 64 | 30 < ... <= 40 13037 23.6 21620 44.5 |
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| 65 | > 40 8963 16.2 21547 44.3 |
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| 66 | Missing 1068 1.9 0 0.0 |
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| 67 | -------------- ----- ------ ----- ------ |
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| 68 | |||
| 69 | Lung family history: This feature describes if the person has close family (parents, siblings or child) who had lung cancer. |
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| 70 | -------------------------- ----- ------ ----- ------ |
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| 71 | Lung cancer family history PLCO PLCO % NLST NLST % |
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| 72 | No 48415 87.8 37302 76.8 |
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| 73 | Yes 6323 11.5 10598 21.8 |
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| 74 | Missing 423 0.8 695 1.4 |
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| 75 | -------------------------- ----- ------ ----- ------ |
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| 76 | |||
| 77 | BMI: This feature describes the person’s body mass index. |
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| 78 | ------------------------------------ ----- ------ ----- ------ |
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| 79 | Body Mass Index PLCO PLCO % NLST NLST % |
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| 80 | Underweight (... <= 18.4) 295 0.5 347 0.7 |
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| 81 | Healthy weight (18.5 <= ... <= 24.9) 17556 31.8 13404 27.6 |
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| 82 | Overweight (25 <= ... <= 29.9) 23920 43.4 20894 43.0 |
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| 83 | Obesity (... >= 30) 12631 22.9 13696 28.2 |
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| 84 | Missing 759 1.4 234 0.5 |
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| 85 | ------------------------------------ ----- ------ ----- ------ |
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| 86 | |||
| 87 | Lung cancer: This feature indicates if the person was diagnosed with lung cancer. |
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| 88 | ----------- ----- ------ ----- ------ |
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| 89 | Lung cancer PLCO PLCO % NLST NLST % |
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| 90 | Negative 52409 95.0 47084 96.9 |
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| 91 | Positive 2752 5.0 1511 3.1 |
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| 92 | Missing 0 0.0 0 0.0 |
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| 93 | ----------- ----- ------ ----- ------ |
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| 94 | |||
| 95 |