Table I.
Comparison of clinical basic conditions between two groups of patients with lung adenocarcinoma brain metastasis [n (%)].
| Clinical characteristics | Experimental group (n=67) | Control group (n=53) | χ2 | P-value |
|---|---|---|---|---|
| Sex | 0.099 | 0.753 | ||
| Male | 36 (53.73) | 30 (56.60) | ||
| Female | 31 (46.27) | 23 (43.40) | ||
| Age (years) | 0.203 | 0.653 | ||
| ≤65 | 39 (58.21) | 33 (62.26) | ||
| >65 | 28 (41.79) | 20 (37.74) | ||
| Smoking | ||||
| Yes | 12 (17.91) | 10 (18.87) | 0.018 | 0.893 |
| No | 55 (82.09) | 43 (81.13) | ||
| Number of brain metastasis lesions (1–10 lesions) | 1.315 | 0.251 | ||
| ≤3 | 40 (59.70) | 37 (69.81) | ||
| >3 | 27 (40.30) | 16 (30.19) | ||
| Maximum diameter of brain metastasis lesion (cm) | 1.079 | 0.299 | ||
| ≤3 | 38 (56.72) | 35 (66.04) | ||
| >3 | 29 (43.28) | 18 (33.96) | ||
| Primary tumor number | 0.056 | 0.813 | ||
| Simple | 48 (71.64) | 39 (73.58) | ||
| Multiple | 19 (28.36) | 14 (26.42) | ||
| Primary tumor site | 2.033 | 0.154 | ||
| Peripheral type | 44 (65.67) | 28 (52.83) | ||
| Central type | 23 (34.33) | 25 (47.17) | ||
| ECOG score | 0.007 | 0.934 | ||
| ≤2 | 51 (76.12) | 40 (75.47) | ||
| >2 | 16 (23.88) | 13 (24.53) |