Table 2.
Baltimore Hip Study (BHS) Patient Characteristics Stratified by Study and Sex
| BHS2 | BHS3 | BHS4 | BHS5 | BHS7 | ANOVA or Chi-Square P-Value | ||||
|---|---|---|---|---|---|---|---|---|---|
| Men | Women | Women | Women | Women | Men | Women | Men | Women | |
| n=121 | n=365 | n=150 | n=76 | n=44 | n=119 | n=114 | |||
| Characteristic | |||||||||
| Age (yrs)*, m (sd) | 79.1 (7.5) | 81.5 (7.3) | 76.7 (11.6) | 81.8 (6.3) | 79.2 (6.5) | 81.1 (7.7) | 81.9 (7.8) | 0.05 | <0.01 |
| Race, n (%) | 0.35 | 0.01 | |||||||
| White | 110 (90.9) | 341 (93.4) | 150 (100.0) | 75 (98.7) | 43 (97.7) | 112 (94.1) | 107 (93.9) | ||
| Non-white | 11 (9.1) | 24 (6.6) | 0 (0) | 1 (1.3) | 1 (2.3) | 7 (5.9) | 7 (6.1) | ||
| Marital Status, n (%) | 0.37 | 0.03 | |||||||
| Married | 67 (55.4) | 75 (20.5) | 33 (22.0) | 26 (34.2) | 14 (31.8) | 59 (49.6) | 34 (29.8) | ||
| Not Currently Married | 54 (44.6) | 290 (79.5) | 116 (77.3) | 50 (65.8) | 30 (68.2) | 60 (50.4) | 80 (70.2) | ||
| Unknown | 0 (0) | 0 (0) | 1 (0.7) | 0 (0) | 0 (0) | 0 (0) | 0 (0.0) | ||
| Education, n (%) | <0.01 | <0.01 | |||||||
| < High School | 45 (37.2) | 140 (38.4) | 42 (28.0) | 20 (26.3) | 14 (31.8) | 32 (26.9) | 18 (15.8) | ||
| ≥High School | 63 (52.1) | 178 (48.8) | 106 (70.7) | 54 (71.1) | 30 (68.2) | 86 (72.3) | 96 (84.2) | ||
| Unknown | 13 (10.7) | 47 (12.9) | 2 (1.3) | 2 (2.6) | 0 (0.0) | 1 (0.8) | 0 (0.0) | ||
| Comorbidity Count, m (sd) | 2.5 (1.5) | 2.1 (1.4) | 2.3 (1.6) | 2.4 (1.5) | 3.0 (1.5) | 3.1 (1.6) | 2.6 (1.5) | 0.01 | <0.01 |
| MMSE (score range 0 to 36, high=good), m (sd) | 21.3 (6.3) | 22.4 (5.4) | 23.1 (4.4) | 27.0 (2.4) | 26.9 (2.7) | 23.0 (4.5) | 24.4 (4.2) | 0.03 | <0.01 |
| BMI (kg/m2), m (sd) | 23.2 (4.1) | 22.2 (4.3) | 22.6 (4.7) | 24.4 (4.6) | 23.5 (4.3) | 25.8 (4.4) | 25.2 (6.2) | <0.01 | <0.01 |
| Type of Fracture, n (%) | 0.09 | 0.09 | |||||||
| Intertrochan teric | 66 (54.5) | 200 (54.8) | 71 (47.3) | 34 (44.7) | 22 (50.0) | 52 (43.7) | 47 (41.2) | ||
| Other | 55 (45.5) | 165 (45.2) | 79 (52.7) | 42 (55.3) | 22 (50.0) | 66 (55.5) | 67 (58.8) | ||
| Missing | 1 (0.8) | ||||||||
| Type of Surgery, n (%) | 0.19 | 0.06 | |||||||
| Internal Fixation | 79 (65.3) | 239 (65.5) | 87 (58.0) | 43 (56.6) | 24 (54.5) | 67 (56.3) | 60 (52.6) | ||
| Other | 41 (33.9) | 121 (33.2) | 59 (39.3) | 33 (43.4) | 20 (45.5) | 52 (43.7) | 54 (47.4) | ||
| Unknown | 1 (0.8) | 5 (1.4) | 4 (2.7) | 0 (0) | 0 (0) | 0 (0.0) | 0 (0.0) | ||
| Length of Stay (days), m (sd) | 16.6 (10.3) | 13.9 (7.5) | 8.6 (4.7) | 4.1 (1.2) | 4.6 (1.5) | 5.5 (2.5) | 5.2 (3.1) | <0.01 | <0.01 |
| Discharge Location, n (%) | <0.01 | <0.01 | |||||||
| Home | 46 (38.0) | 98 (26.8) | 29 (19.3) | 2 (2.6) | 1 (2.3) | 5 (4.2) | 5 (4.4) | ||
| Facility | 69 (57.0) | 253 (69.3) | 120 (80.0) | 74 (97.4) | 42 (95.5) | 114 (95.8) | 109 (95.6) | ||
| Unknown | 6 (5.0) | 14 (3.8) | 1 (0.7) | 0 (0) | 1 (2.3) | 0 (0) | 0 (0.0) | ||
| Baseline LPADL, m (sd) | 4.0 (3.8) | 3.4 (3.6) | 4.8 (3.4) | 2.1 (2.3) | 1.5 (2.5) | 2.4 (2.4) | 2.7 (2.4) | <0.01 | <0.01 |
m, mean; sd, standard deviation
*
Deidentified datasets were used for BHS4 and BHS5 analysis whereby all women 90 or older had their age assigned to 90. In our study sample, this impacted ten subjects in BHS4 and two subjects in BHS5.