Stages | Stage One: Item generation and initial questionnaire development | Stage Two: Item reduction and scale generation. Testing reliability and validity | ||
---|---|---|---|---|
Parameter/Study phase | Phase One | Phase Two | Phase Three | Phase Four |
Age (years) | 71.0 (10.3) 45–92 | 67 (11.3) 50–81 | 66.1 (9.9) 38–87 | 68 (10.9) 20–87 |
Sex Male/Female (% male) | 14/16 (46.7) | 16/18 (47) | 71/97 (42) | 65/90 (42) |
Ethnicity | WB 28 (93.3) | WB 32 (94.1) | WB 157 (93.5) | WB 151 (97.4) |
OW 2 (6.7) | OW 2 (5.9) | OW 7 (4.2) | OW 1 (0.6) | |
WI 2 (1.2) | I 1 (0.6) | |||
Af 1 (0.6) | Ar 1 (0.6) | |||
OA 1 (0.6) | C 1 (0.6) | |||
Duration of disease (years) | 4.6 (4.1) 0.67–20 | 4.4 (4.2) 0.5–30 | 6.2 (6.8) 0.5–43 | 6.2 (9.3) 0.5–74 |
Length of stay (days) | 28.5 (24.0) 0–63 | 3.15 (2.83) 0–8 | 2.3 (2.5) 0–15 | 2.6 (2.7) 0–21 |
Type of surgery | THA 16 (53.3) | THA 9 (26) | THA 70 (41.7) | THA 58 (37.4) |
TKA 11 (36.7) | TKA 9 (26) | TKA 26 (15.5) | TKA 33 (21.3) | |
UKA 2 (6.7) | UKA 12 (35) | UKA 54 (32.1) | UKA 55 (35.5) | |
Rev. THA 1 (3.3) | Rev. THA 1 (3) | PFJ 2 (1.2) | Rev. THA 6 (3.9) | |
Rev. TKA 3 (9) | Rev. THA 7 (4.2) | Rev. TKA 3 (1.9) | ||
Rev. UKA/TKA 9 (5.4) | ||||
Employment | Employed 7 (23.3) | Employed 16 (47) | Employed 67 (39.9) | Employed 38 (24.5) |
Retired 21 (70) | Retired 18 (53) | Retired 91 (54.2) | Retired 110 (71) | |
Disabled 2 (6.7) | Disabled 10 (5.9) | Disabled 7 (4.5) | ||
Living situation | Alone 6 (20) | Alone 8 (24) | Alone 41 (24.4) | Alone 27 (17.4) |
Family 24 (80) | Family 26 (76) | Family 127 (75.6) | Family 128 (82.6) | |
Home situation | One level 4 (13.3) | One level 6 (18) | One level 37 (22) | One level 20 (12.9) |
Up and down stairs 26 (86.7) | Up and down stairs 28 (82) | Up and down stairs 131 (78) | Up and down stairs 135 (87.1) |