Table 4.
Weighted kappa statistics for middle‐aged adult, young adult, and pediatric RSRRs compared with elderly adult RSRRs by hospital characteristics
| Pediatric (1‐17 y) vs elderly adults (≥65 y) RSRRs (n = 235)a | Young adults (18‐39 y) vs elderly adults (≥65 y) RSRRs (n = 1760) | Middle‐aged adults (40‐64 y) vs elderly adults (≥65 y) RSRRs (n = 1760) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Same quartile (Q1‐Q4) n (%) |
Same quartile (Q1 or Q4) n (%) |
Opposite quartile (Q1 and Q4) n (%) |
Weighted Kappa (95% CI) |
Same quartile (Q1‐Q4) n (%) |
Same quartile (Q1 or Q4) n (%) |
Opposite quartile (Q1 and Q4) n (%) |
Weighted Kappa (95% CI) |
Same quartile (Q1‐Q4) n (%) |
Same quartile (Q1 or Q4) n (%) |
Opposite quartile (Q1 and Q4) n (%) |
Weighted Kappa (95% CI) |
|
| All | 62 (26.4) | 29 (16.5) | 27 (15.3) | 0.04 (−0.05, 0.13) | 627 (35.6) | 377 (29.5) | 103 (8.1) | 0.23 (0.20, 0.27) | 833 (47.3) | 526 (43.8) | 33 (2.8) | 0.46 (0.43, 0.49) |
| Hospital ownership | ||||||||||||
| Public | 21 (39.6) | 11 (29.0) | 5 (13.2) | 0.19 (−0.02, 0.40) | 113 (33.0) | 73 (29.2) | 19 (7.6) | 0.22 (0.14, 0.30) | 154 (45.0) | 103 (44.2) | 7 (3.0) | 0.45 (0.38, 0.51) |
| Private, not‐for‐profit | 36 (23.8) | 20 (17.2) | 13 (11.2) | 0.04 (−0.07, 0.15) | 367 (33.4) | 215 (26.5) | 73 (9.0) | 0.20 (0.16, 0.25) | 498 (45.3) | 312 (40.9) | 26 (3.4) | 0.44 (0.40, 0.48) |
| Private, for‐profit | 6 (19.4) | 1 (4.4) | 5 (21.7) | −0.06 (−0.27, 0.15) | 122 (38.4) | 68 (30.4) | 24 (10.7) | 0.26 (0.18, 0.34) | 154 (48.4) | 90 (40.9) | 6 (2.7) | 0.49 (0.42, 0.56) |
| Location/Teaching Status | ||||||||||||
| Metropolitan teaching | 40 (25.0) | 20 (16.3) | 17 (13.8) | 0.07 (−0.04, 0.18) | 217 (39.2) | 132 (33.3) | 25 (6.3) | 0.33 (0.27, 0.39) | 298 (53.9) | 187 (51.7) | 6 (1.7) | 0.56 (0.52, 0.61) |
| Metropolitan, nonteaching | 13 (26.5) | 6 (16.2) | 7 (18.9) | 0.04 (−0.15, 0.24) | 213 (33.0) | 129 (26.8) | 36 (7.5) | 0.20 (0.15, 0.26) | 302 (46.8) | 189 (42.2) | 7 (1.6) | 0.47 (0.42, 0.51) |
| Nonmetropolitan | 9 (34.6) | 4 (21.1) | 3 (15.8) | 0.14 (−0.14, 0.42) | 188 (33.5) | 105 (26.1) | 52 (12.9) | 0.15 (0.08, 0.21) | 223 (39.7) | 137 (34.1) | 21 (5.2) | 0.33 (0.27, 0.39) |
| Bed size | ||||||||||||
| Small/medium | 19 (24.4) | 7 (12.7) | 14 (25.5) | −0.10 (−0.26, 0.06) | 389 (32.5) | 228 (25.9) | 88 (10.0 | 0.17 (0.13, 0.22) | 544 (45.4) | 338 (40.8) | 31 (3.7) | 0.43 (0.39, 0.47) |
| Large | 45 (28.7) | 25 (21.9) | 17 (14.9) | 0.12 (0.01, 0.23) | 225 (40.0) | 143 (35.7) | 18 (4.5) | 0.35 (0.29, 0.41) | 317 (56.4) | 195 (53.6) | 4 (1.1) | 0.57 (0.52, 0.62) |
| % Medicaid, tertile | ||||||||||||
| Lowest | 21 (27.3) | 12 (19.7) | 7 (11.5) | 0.14 (−0.01, 0.30) | 196 (33.6) | 115 (26.9) | 39 (9.1) | 0.20 (0.14, 0.25) | 269 (46.1) | 169 (42.3) | 15 (3.8) | 0.45 (0.40, 0.50) |
| Middle | 16 (20.0) | 10 (15.4) | 8 (12.3) | −0.02 (−0.17, 0.13) | 213 (35.7) | 127 (29.2) | 34 (7.8) | 0.23 (0.17, 0.29) | 274 (46.0) | 175 (42.6) | 10 (2.4) | 0.44 (0.39, 0.50) |
| Highest | 20 (26.0) | 10 (17.2) | 9 (15.5) | 0.04 (−0.12, 0.20) | 209 (36.0) | 125 (30.1) | 39 (9.4) | 0.26 (0.20, 0.31) | 294 (50.7) | 180 (46.2) | 10 (2.6) | 0.52 (0.46, 0.56) |
Abbreviations: CI, confidence interval; IQR, interquartile range; RSRR, risk‐standardized readmission rate.
a
Pediatric vs elderly adult RSRR comparisons performed in subset of 235 nonspecialty hospitals treating both pediatric and adult patients.